This page has only limited features, please log in for full access.
Biochar utilization for adsorption seems to be the most cost-effective, easy/fast approach for pollutants removal from water and wastewater. Due to the high adsorption properties, magnetic biochar proved to be efficient in the sorption of heavy metals and nutrients. Although there are several studies on development of magnetic biochars, there is a lack of research on development of high-performance magnetic biochar from food waste for removal applications. This study aimed at preparing new classes of magnetic biochar derived from tea waste (TBC) for removal of heavy metals (Ni2+, Co2+), and nutrients (NH4+ and PO43−) from water and effective fertilizer (source of NH4+ and PO43−). Standard carbonization process and ultrafast microwave have been used for fabrication of TBCs. The removal of nickel, cobalt as the representatives of heavy metals, and over-enriched nutrients (NH4+ and PO43−) from water were tested and the removal kinetics, mechanism, and the effect of pH, dissolved organic matter and ionic strength were studied. Simultaneously, possible fertilizing effect of TBC for controlled release of nutrients (NH4+ and PO43−) in soil was investigated. Up to 147.84 mg g−1 of Ni2+ and 160.00 mg g−1 of Co2+ were adsorbed onto tested biochars. The process of co-adsorption was also efficient (at least 131.68 mg g−1 of Co2+ and 160.00 mg g−1 of Ni2+). The highest adsorbed amount of NH4+ was 49.43 mg g−1, and the highest amount of PO43− was 112.61 mg g−1. The increase of the solution ionic strength and the presence of natural organic matter affected both the amount of adsorbed Ni2++Co2+ and the reaction mechanism. The results revealed that magnetic nanoparticle impregnated onto tea biochar, can be a very promising alternative for wastewater treatment especially considering removal of heavy metals and nutrients and slow-release fertilizer to improve the composition of soil elements.
Kamyar Shirvanimoghaddam; Bożena Czech; Katarzyna Tyszczuk-Rotko; Magdalena Kończak; Seyed Mousa Fakhrhoseini; Ram Yadav; Minoo Naebe. Sustainable synthesis of rose flower-like magnetic biochar from tea waste for environmental applications. Journal of Advanced Research 2021, 1 .
AMA StyleKamyar Shirvanimoghaddam, Bożena Czech, Katarzyna Tyszczuk-Rotko, Magdalena Kończak, Seyed Mousa Fakhrhoseini, Ram Yadav, Minoo Naebe. Sustainable synthesis of rose flower-like magnetic biochar from tea waste for environmental applications. Journal of Advanced Research. 2021; ():1.
Chicago/Turabian StyleKamyar Shirvanimoghaddam; Bożena Czech; Katarzyna Tyszczuk-Rotko; Magdalena Kończak; Seyed Mousa Fakhrhoseini; Ram Yadav; Minoo Naebe. 2021. "Sustainable synthesis of rose flower-like magnetic biochar from tea waste for environmental applications." Journal of Advanced Research , no. : 1.
In the last years, there is great attention paid to the determination of polycyclic aromatic hydrocarbons (PAHs) in different environmental matrices. Extensive reviews on PAHs presence and toxicity were published recently. However, PAHs formation and transformation in the environment lead to the production of PAHs derivatives containing oxygen (O-PAHs), nitrogen (N-PAHs and aazarenes AZA) or sulfur (PASHs) in the aromatic ring. The development of new analytical methods enabled the determination of these novel contaminants. The presence of oxygen, nitrogen, or sulfur in PAHs aromatic rings increased their toxicity. The most common primary sources of PAHs derivatives are biological processes such as microbial activity (in soil, water, and wastewater treatment plants (O-PAHs)) and all processes involving combustion of fuel, coal, and biomass (O-PAHs, N-PAHs, AZA, PASHs). The secondary resources involved i) photochemical (UV light), ii) radical-mediated (OH, NO3), and iii) reactions with oxidants (O3, NOx) (O-PAHs, N-PAHs, AZA). Furthermore, N-PAHs were able to transform to their corresponding O-PAHs, while other derivatives were not. It indicated that N-PAHs are more vulnerable to photooxidation in the environment. 85% of O- and N-PAHs were detected with particle matter below 2.5 μm suggesting their easier bioaccessibility. More than 90% of compounds with four and more aromatic cycles were present in the particle phase in the air. Although the concentrations of N-PAHs or O-PAHs may be similar to PAHs concentration or even 1000 times lower than parent PAHs, PAHs derivatives accounted for a significant portion of the total mutagenicity. The present review is describing the results of the studies on the determination of PAHs derivatives in different environmental matrices including airborne particles, sediments, soil, and organisms. The mechanisms of their formation and toxicity were assessed.
Agnieszka Krzyszczak; Bożena Czech. Occurrence and toxicity of polycyclic aromatic hydrocarbons derivatives in environmental matrices. Science of The Total Environment 2021, 788, 147738 .
AMA StyleAgnieszka Krzyszczak, Bożena Czech. Occurrence and toxicity of polycyclic aromatic hydrocarbons derivatives in environmental matrices. Science of The Total Environment. 2021; 788 ():147738.
Chicago/Turabian StyleAgnieszka Krzyszczak; Bożena Czech. 2021. "Occurrence and toxicity of polycyclic aromatic hydrocarbons derivatives in environmental matrices." Science of The Total Environment 788, no. : 147738.
Due to environmental concern, direct utilization of sewage sludge or residues from biogas production is restricted. Conversion of problematic bio-wastes into biochars can be a very effective solution. In the presented study, the adsorption of fulvic acids onto series of biochars produced from bio-wastes such as sewage sludge, residues from biogas production, and plant (Miscanthus sp.) were performed to examine the behavior of biochars in the environment and interactions with fulvic acids as the representatives of dissolved organic matter. The results clearly indicate that the highest excess of fulvic acids, 93-96 mg g-1, was chemisorbed onto biochar obtained specifically from sewage sludge. The mechanism of the adsorption was independent from applied biochar feedstock. Monolayer coverage was dominant onto all biochars. Generally, adsorption was assumed to be controlled by polar interactions between fulvic acids and the biochars or pre-adsorbed and residual fulvic acids molecules (which were dominant) and the strong π-π interactions. The obtained high values of the adsorption capacity of sewage sludge derived biochars confirmed that thermal treatment is a very effective tool of bio-waste management.
Magdalena Kończak; Anna Siatecka; Michael A. Nazarkovsky; Bożena Czech; Patryk Oleszczuk. Sewage sludge and solid residues from biogas production derived biochar as an effective bio-waste adsorbent of fulvic acids from water or wastewater. Chemosphere 2021, 278, 130447 .
AMA StyleMagdalena Kończak, Anna Siatecka, Michael A. Nazarkovsky, Bożena Czech, Patryk Oleszczuk. Sewage sludge and solid residues from biogas production derived biochar as an effective bio-waste adsorbent of fulvic acids from water or wastewater. Chemosphere. 2021; 278 ():130447.
Chicago/Turabian StyleMagdalena Kończak; Anna Siatecka; Michael A. Nazarkovsky; Bożena Czech; Patryk Oleszczuk. 2021. "Sewage sludge and solid residues from biogas production derived biochar as an effective bio-waste adsorbent of fulvic acids from water or wastewater." Chemosphere 278, no. : 130447.
The increased volume of produced toxic sewage sludge requires suitable management and utilization. Biochar production is an eco-efficient technology that uses toxic wastes towards highly efficient materials in pharmaceuticals removal from water. The management of sewage sludge towards engineered biochar can solve several problems: waste volume minimalization and obtaining of the novel highly efficient sorbents. The objective of this work was an evaluation of the affinity of sewage sludge-derived biochars towards selected pharmaceuticals in water systems. In order to achieve high specific surface area and high carbon content of biochar different carrier gas conditions, preparation temperatures and different raw materials were tested. The maximum adsorption capacity was following: diclofenac - 92.7 mg/g; triclosan - 113 mg/g and naproxen - 127 mg/g. The best fitting of the experimental results revealed mainly pseudo-second order model. The adsorption of diclofenac can occur via π-stacking interactions with the biochar surface mainly via Dubinin-Radushkevich model. Both interactions between the phenyl groups of triclosan molecules and phenol groups on biochar via hydrogen bonding, and non-covalent π-π stacking of aromatic groups of triclosan and biochar were responsible for monolayer surface coverage. The adsorption of naproxen was ascribed to Langmuir, Temkin and Dubinin-Radushkevich models and strong π–π electro-donor-acceptor interactions.
Bożena Czech; Magdalena Kończak; Magdalena Rakowska; Patryk Oleszczuk. Engineered biochars from organic wastes for the adsorption of diclofenac, naproxen and triclosan from water systems. Journal of Cleaner Production 2020, 288, 125686 .
AMA StyleBożena Czech, Magdalena Kończak, Magdalena Rakowska, Patryk Oleszczuk. Engineered biochars from organic wastes for the adsorption of diclofenac, naproxen and triclosan from water systems. Journal of Cleaner Production. 2020; 288 ():125686.
Chicago/Turabian StyleBożena Czech; Magdalena Kończak; Magdalena Rakowska; Patryk Oleszczuk. 2020. "Engineered biochars from organic wastes for the adsorption of diclofenac, naproxen and triclosan from water systems." Journal of Cleaner Production 288, no. : 125686.
In this study, elsmoreite/tungsten oxide is used to form a heterojunction with ZnS-containing industrial waste. The effect of the elsmoreite/tungsten oxide content on photocatalytic activity of ZnS using the different ratios of ZnS:Na2WO4 in the synthesis solution is estimated. The initial ZnS:Na2WO4 ratio leads to the formation of hexagonal WO3∙0.33H2O on the surface of ZnS. A further increase in the ZnS:Na2WO4 ratio results in the domination of cubic WO3∙0.5H2O over hexagonal WO3. The ultraviolet–visible (UV–Vis) diffuse reflectance spectra of elsmoreite/tungsten [email protected] composite photocatalysts show that the absorption onset shifts monotonously towards lower wavelengths from 450 nm to 400 nm. The microrods of hexagonal WO3 and {111}-truncated submicron-sized crystals of WO3∙0.5H2O are grown on the ZnS surface. The transmission electron microscopy (TEM) results confirm the formation of a heterojunction between elsmoreite/tungsten oxide and ZnS. The photocatalytic activities of elsmoreite/tungsten [email protected] composite photocatalysts are evaluated for the degradation of selected pharmaceuticals and personal care products (PPCPs): metoprolol - Mt, triclosan - TCS, and caffeine – CAF both in single and in mixture solutions. The elsmoreite/tungsten [email protected] photocatalysts degrade 50% of Mt, 70% TCS, and 60% CAF in single solution and 35% of Mt, 20% of CAF, and 20% of TCS in mixture solution. Hydrated Mt and TCS are preferably adsorbed on the surface of WO3∙0.5H2O (111), and CAF has better affinity to the surface of WO3. The elsmoreite/tungsten [email protected] photocatalysts show a good reusability. Hydroxyl radicals (•OH) and photogenerated holes (h+) are involved in the photocatalytic removal of Mt, while only h+ is involved in the photocatalytic removal of TCS. Interestingly, none of the above-mentioned species is involved in the photocatalytic removal of CAF. Also, nontoxic CAF is mainly degraded into intermediates with higher toxicity. The toxicity of the photocatalytically treated model wastewater in the mixture solution, tested with Vibrio fischeri, is much lower than that in the single solution.
Bożena Czech; Patrycja Zygmunt; Zukhra C. Kadirova; Kunio Yubuta; Mirabbos Hojamberdiev. Effective photocatalytic removal of selected pharmaceuticals and personal care products by elsmoreite/tungsten [email protected] photocatalyst. Journal of Environmental Management 2020, 270, 110870 .
AMA StyleBożena Czech, Patrycja Zygmunt, Zukhra C. Kadirova, Kunio Yubuta, Mirabbos Hojamberdiev. Effective photocatalytic removal of selected pharmaceuticals and personal care products by elsmoreite/tungsten [email protected] photocatalyst. Journal of Environmental Management. 2020; 270 ():110870.
Chicago/Turabian StyleBożena Czech; Patrycja Zygmunt; Zukhra C. Kadirova; Kunio Yubuta; Mirabbos Hojamberdiev. 2020. "Effective photocatalytic removal of selected pharmaceuticals and personal care products by elsmoreite/tungsten [email protected] photocatalyst." Journal of Environmental Management 270, no. : 110870.
Pharmaceuticals and personal care products (PPCPs) are a new class of water contaminants that need to be effectively removed. In this work, SnO2 is involved in enhancing the photocatalytic activity of ZnS-bearing waste for the photodegradation of selected PPCPs. The [email protected] photocatalysts with various SnO2:ZnS ratios were synthesized by a one-step hydrothermal route. The results of physicochemical characterization reveal the successful formation of [email protected] photocatalyst. The photocatalytic activities of [email protected] photocatalysts are evaluated for the degradation of selected PPCPs: metoprolol (beta-blocker), carbamazepine (antiepileptic), acetaminophen (nonsteroidal anti-inflammatory drug), and triclosan (antimicrobial). As a result, 70% of acetaminophen, 40% of carbamazepine, 67% of metoprolol, and 40% of triclosan are degraded by [email protected] photocatalysts. Such discrepancy in the photocatalytic degradation of PPCPs is stemmed from different physicochemical properties of the photocatalysts, chemical structures of PPCPs, and interactions between the PPCP molecules and the photocatalyst surface. To gain more insights into the different photocatalytic removal efficiencies of PPCPs, the adsorption affinities of PPCPs and water molecules to the predominant crystal planes of SnO2 (011) and ZnS (111) are computationally estimated. It is found that hydrated PPCPs are preferably adsorbed on the surface of SnO2 rather than on the surface of ZnS, and the [email protected] photocatalysts show a better adsorption affinity to PPCPs than individual SnO2 or ZnS. This study demonstrates a simple route to develop low-cost photocatalysts for the efficient removal of PPCPs by utilizing zinc sulfide-bearing industrial waste.
Mirabbos Hojamberdiev; Bożena Czech; Arin Can Göktaş; Kunio Yubuta; Zukhra Kadirova. [email protected] photocatalyst with enhanced photocatalytic activity for the degradation of selected pharmaceuticals and personal care products in model wastewater. Journal of Alloys and Compounds 2020, 827, 154339 .
AMA StyleMirabbos Hojamberdiev, Bożena Czech, Arin Can Göktaş, Kunio Yubuta, Zukhra Kadirova. [email protected] photocatalyst with enhanced photocatalytic activity for the degradation of selected pharmaceuticals and personal care products in model wastewater. Journal of Alloys and Compounds. 2020; 827 ():154339.
Chicago/Turabian StyleMirabbos Hojamberdiev; Bożena Czech; Arin Can Göktaş; Kunio Yubuta; Zukhra Kadirova. 2020. "[email protected] photocatalyst with enhanced photocatalytic activity for the degradation of selected pharmaceuticals and personal care products in model wastewater." Journal of Alloys and Compounds 827, no. : 154339.
The effect of zinc oxide nanoparticles (ZnO NPs) and zinc sulfide nanoparticles (ZnS NPs) on the toxicity of sewage sludges in sewage sludge-amended soils was investigated with respect to plant- (Lepidium sativum) and soil- (Folsomia candida) species. The toxicity of porewater obtained from the tested soils towards Vibrio fischeri (Microtox®) was also investigated. Two sewage sludges (SSL1 and SSL2) with different organic matter content were amended with nanoparticles. Depending on the type of biotest and the type of sewage sludge, different effects of ZnO or ZnS NPs on the toxicity of sewage sludge-amended soil were observed. In general, ZnO and ZnS NPs stimulated root growth for SSL1 or reduced the harmful impact of SSL2 on the root growth of L. sativum roots. Greater stimulation or inhibition of root growth was observed for the ZnO than ZnS NPs. The unfavorable effect of ZnO/ZnS NPs on F. candida mortality and reproduction was observed at a concentration of ZnO/ZnS in sewage sludge ≥250 mg/kg. Generally, there were no significant differences between ZnO and ZnS NPs toxicity towards F. candida. Aging for 45 days of sewage sludge-amended soil containing NPs affected ZnO and ZnS NPs toxicity to all tested organisms. In the most cases, the toxicity decreased after 45 days of aging for plant (L. sativum) and invertebrates (F. candida). The toxicity of porewater to V. fischeri from sewage sludge-amended soil contains ZnO NPs did not change, while in the case of ZnS NPs, the toxicity increased after 45 days of aging.
Patryk Oleszczuk; Bożena Czech; Magdalena Kończak; Aleksandra Bogusz; Anna Siatecka; Paulina Godlewska; Mark Wiesner. Impact of ZnO and ZnS nanoparticles in sewage sludge-amended soil on bacteria, plant and invertebrates. Chemosphere 2019, 237, 124359 .
AMA StylePatryk Oleszczuk, Bożena Czech, Magdalena Kończak, Aleksandra Bogusz, Anna Siatecka, Paulina Godlewska, Mark Wiesner. Impact of ZnO and ZnS nanoparticles in sewage sludge-amended soil on bacteria, plant and invertebrates. Chemosphere. 2019; 237 ():124359.
Chicago/Turabian StylePatryk Oleszczuk; Bożena Czech; Magdalena Kończak; Aleksandra Bogusz; Anna Siatecka; Paulina Godlewska; Mark Wiesner. 2019. "Impact of ZnO and ZnS nanoparticles in sewage sludge-amended soil on bacteria, plant and invertebrates." Chemosphere 237, no. : 124359.
Acetaminophen (APAP), a non-steroidal anti-inflammatory drug, is the most commonly detected wastewater contaminant together with caffeine (CAF), that is used both in beverages and food but also in medicine. The presence of pharmaceuticals in the wastewater effluent have confirmed that nowadays existing wastewater treatment methods are not effective enough in pharmaceuticals removal. The aim of presented studies was the determination of the photocatalytic efficiency of TiO2 based nanocomposites in the removal of APAP and CAF from water under visible light irradiation. The process of photocatalytic removal of APAP from water in the presence of CAF was performed using TiO2-SiO2 photocatalysts containing multiwalled carbon nanotubes (MWCNT) characterized by high surface area (up to 420.8 ± 12.6 m2 g-1), narrow pore diameter (3-4 nm) and uniform anatase TiO2 crystallites (5-6 nm) with reduced band gap energy (up to 2.82 eV). The high resistance of CAF to photocatalytic decomposition under visible light irradiation was noted. Slight removal of CAF (29.4 ± 2.7%) was observed after 60 minutes of irradiation using nanocomposite with lowest MWCNT addition (0.15 wt%). The presence of CAF hindered APAP photocatalytic oxidation. CNT10, nanocomposite that was the most effective in APAP removal (81.6 ± 0.6%) enabled to remove APAP in the presence of CAF only by 48.0 ± 4.3% during visible light irradiation. The best results of APAP removal in the presence of CAF were obtained over CNT1 (47.6 ± 2.4%), that contained 0.15 wt% of MWCNT. The kinetics of APAP, CAF and APAP with CAF photocatalytic degradation and mineralization proceeded according to a pseudo-first-order reaction model and APAP kDOC was significantly reduced in the CAF presence (up to almost 4 times). The photocatalytic APAP removal in the presence of CAF over MWCNT-TiO2-SiO2 proceeded via photo generated holes and, in lower extend, •OH radicals. Photocatalytically treated model water containing APAP and CAF revealed no toxicity to Vibrio fischeri.
Bożena Czech; Katarzyna Tyszczuk-Rotko. Caffeine hinders the decomposition of acetaminophen over TiO2-SiO2 nanocomposites containing carbon nanotubes irradiated by visible light. Journal of Photochemistry and Photobiology A: Chemistry 2019, 376, 166 -174.
AMA StyleBożena Czech, Katarzyna Tyszczuk-Rotko. Caffeine hinders the decomposition of acetaminophen over TiO2-SiO2 nanocomposites containing carbon nanotubes irradiated by visible light. Journal of Photochemistry and Photobiology A: Chemistry. 2019; 376 ():166-174.
Chicago/Turabian StyleBożena Czech; Katarzyna Tyszczuk-Rotko. 2019. "Caffeine hinders the decomposition of acetaminophen over TiO2-SiO2 nanocomposites containing carbon nanotubes irradiated by visible light." Journal of Photochemistry and Photobiology A: Chemistry 376, no. : 166-174.
The development of high performance, sustainable and inexpensive catalyst for environmental applications is a highly innovative and promising approach to meet the increasing demands from society on water treatment and pollution remediation. Carbon microtube (CMT) synthesized from cotton waste was successfully developed by direct pyrolysis of cotton bundle in argon atmosphere in different carbonization temperature (900,1100, 1300 and 1500°C). Carbon microtubes have been used for removal of Bisphenol A (BPA) in water and showed the optimum performance for CMT11 and CMT 13. The mechanism involved in this efficient water treatment was ascribed to the strong π-π interaction and hydrogen bonds between CMT and BPA. Given the repeatability, high removal performance and cost effectiveness of the cotton based carbon microtubes when compared to other well-known catalysts such as carbon nanotubes, the carbon microtubes demonstrated great potential as low-cost, sustainable and effective catalyst for wastewater treatment.
Kamyar Shirvanimoghaddam; Bożena Czech; Grzegorz Wójcik; Minoo Naebe. The light enhanced removal of Bisphenol A from wastewater using cotton waste derived carbon microtubes. Journal of Colloid and Interface Science 2018, 539, 425 -432.
AMA StyleKamyar Shirvanimoghaddam, Bożena Czech, Grzegorz Wójcik, Minoo Naebe. The light enhanced removal of Bisphenol A from wastewater using cotton waste derived carbon microtubes. Journal of Colloid and Interface Science. 2018; 539 ():425-432.
Chicago/Turabian StyleKamyar Shirvanimoghaddam; Bożena Czech; Grzegorz Wójcik; Minoo Naebe. 2018. "The light enhanced removal of Bisphenol A from wastewater using cotton waste derived carbon microtubes." Journal of Colloid and Interface Science 539, no. : 425-432.
The presence of acetaminophen (APAP) in water and wastewater indicates its low susceptibility to conventional treatment. The application of new TiO2 nanocomposites containing pristine carbon nanotubes (MWCNT, 0.15–8.78 wt%) prepared by solgel method in acetaminophen removal from water was tested. The studied nanocomposites possessed a high surface area (348–421 m2·g−1) with uniform framework-confined mesopores (primary mesopores) with an average pore width of about 3 nm. TiO2 was present as anatase with crystal size ∼ 5–6 nm. The nanocomposites had an exposed more graphitized MWCNT surface with a lower content of CO and OCO surface groups. The addition of MWCNT reduced the band gap of TiO2 from 3.2 eV to 2.82 eV. Dark adsorption resulted in insignificant changes in APAP concentration. The greatest changes in APAP concentration during Vis irradiation over the tested nanocomposites were observed using CNT10 (Fig. 10B). The highest efficiency was exhibited by the nanocomposite containing 1.72 wt% of MWCNT that enabled 81.6 ± 0.6% removal of APAP from water. Generally, an increase of MWCNT concentration up to 1.72 wt% in the nanocomposites induced APAP removal. The nanocomposites possessing higher MWCNT addition were, however, not so efficient (63.2 ± 2.4% and 62.2 ± 4.2% removal). The enhanced photocatalytic activity of different nanocomposites is observed only in the narrow range. The obtained results confirmed that photogenerated holes and, to a lower extent, O2− and OH radicals played the key role in photocatalytic APAP removal over MWCNT-TiO2-SiO2. The studies using Vibrio fischeri have confirmed that photocatalytic oxidation is an effective method for reducing water toxicity.
Bożena Czech; Katarzyna Tyszczuk-Rotko. Visible-light-driven photocatalytic removal of acetaminophen from water using a novel MWCNT-TiO2-SiO2 photocatalysts. Separation and Purification Technology 2018, 206, 343 -355.
AMA StyleBożena Czech, Katarzyna Tyszczuk-Rotko. Visible-light-driven photocatalytic removal of acetaminophen from water using a novel MWCNT-TiO2-SiO2 photocatalysts. Separation and Purification Technology. 2018; 206 ():343-355.
Chicago/Turabian StyleBożena Czech; Katarzyna Tyszczuk-Rotko. 2018. "Visible-light-driven photocatalytic removal of acetaminophen from water using a novel MWCNT-TiO2-SiO2 photocatalysts." Separation and Purification Technology 206, no. : 343-355.
The problem of wastewater treatment and inorganics removal and the waste management including slags is of great importance nowadays. Three types of treated calcium silicate-rich slags were tested. The impact of thermal treatment of slag in air (SA), under NH3 atmosphere (SN), and in the presence of flux (SF) at different temperatures (500–1000 °C) on removal of cadmium from aqueous solution was investigated. The treatment had the impact on slag characteristics. In the slag samples thermally treated in air, SiO2, clinopyrexene, larnite, CaSiO3, Ca3SiO5, Ca8Si5O18, and olivine crystalline phases were formed. A very similar trend was observed for the slag samples heat treated under NH3 atmosphere except the formation of wollastonite at 1000 °C. Depending on the flux employed in the thermal treatment of slag, various crystalline phases were formed. Each alkaline earth metal chloride (CaCl2, SrCl2, and BaCl2) flux affected differently. Potassium, iron, magnesium, aluminum, silicon, calcium, and lead are the main elemental components of the slag. The slag sample thermally treated with CaCl2 flux showed the highest potential for Cd(II) adsorption followed by the SN sample series. The results strictly indicate the complex mechanism of Cd(II) adsorption onto the slag materials considering both chemical adsorption (a pseudo-second order) and intraparticle diffusion. Cd(II) adsorption proceeded according to the Langmuir, Temkin or Freundlich models. The best results can be obtained using a low-cost slag adsorbent thermally treated under NH3 atmosphere.
Bożena Czech; Mirabbos Hojamberdiev; Aleksandra Bogusz. Impact of thermal treatment of calcium silicate-rich slag on the removal of cadmium from aqueous solution. Journal of Cleaner Production 2018, 200, 369 -379.
AMA StyleBożena Czech, Mirabbos Hojamberdiev, Aleksandra Bogusz. Impact of thermal treatment of calcium silicate-rich slag on the removal of cadmium from aqueous solution. Journal of Cleaner Production. 2018; 200 ():369-379.
Chicago/Turabian StyleBożena Czech; Mirabbos Hojamberdiev; Aleksandra Bogusz. 2018. "Impact of thermal treatment of calcium silicate-rich slag on the removal of cadmium from aqueous solution." Journal of Cleaner Production 200, no. : 369-379.
Kamyar Shirvanimoghaddam; Bożena Czech; Mohammad Mahdi Abolhasani; Minoo Naebe. Sustainable periodically patterned carbon nanotube for environmental application: Introducing the cheetah skin structure. Journal of Cleaner Production 2018, 179, 429 -440.
AMA StyleKamyar Shirvanimoghaddam, Bożena Czech, Mohammad Mahdi Abolhasani, Minoo Naebe. Sustainable periodically patterned carbon nanotube for environmental application: Introducing the cheetah skin structure. Journal of Cleaner Production. 2018; 179 ():429-440.
Chicago/Turabian StyleKamyar Shirvanimoghaddam; Bożena Czech; Mohammad Mahdi Abolhasani; Minoo Naebe. 2018. "Sustainable periodically patterned carbon nanotube for environmental application: Introducing the cheetah skin structure." Journal of Cleaner Production 179, no. : 429-440.
The carbon nanotubes (CNT) present in the wastewater subjected to treatment will possess altered physico-chemical properties. The changed properties will result in the unknown behavior of CNT in the environment after disposal; and it is expected to differ from their pristine analogues. In the present paper the effect of sorption of dissolved organic matter with fulvic acids (FA) as representatives onto UV and/or H2O2 treated CNT was tested. Both kinetics and mechanism of sorption was estimated. The chemical adsorption was a rate limiting step and a pseudo-second order kinetics described the sorption of FA onto UV and/or H2O2 treated CNT. The treating increased affinity towards FA and treating by UV and H2O2 simultaneously possessed greater impact on k2 than UV and H2O2 separately. The greatest effect on CNT sorption capacity revealed H2O2. The sorption mechanism was described by Temkin (CNT-H2O2) and Dubinin-Radushkevich model. The increase in CNT surface disorder caused by UV and/or H2O2 treatment favored sorption of FA via π-π interactions (exfoliated surface and disordered CNT walls). FA sorption occurred between aromatic rings of FA and CNT and hydrogen bonds formed with the oxygen functional groups. The results indicate that UV and/or H2O2 treatment affected the sorption capacity and affinity of CNT towards FA.
Bożena Czech. The effect of MWCNT treatment by H 2 O 2 and/or UV on fulvic acids sorption. Environmental Research 2017, 155, 1 -6.
AMA StyleBożena Czech. The effect of MWCNT treatment by H 2 O 2 and/or UV on fulvic acids sorption. Environmental Research. 2017; 155 ():1-6.
Chicago/Turabian StyleBożena Czech. 2017. "The effect of MWCNT treatment by H 2 O 2 and/or UV on fulvic acids sorption." Environmental Research 155, no. : 1-6.
A simple and sensitive adsorptive stripping voltammetric procedure for the determination of trace concentration of U(VI) in natural water samples was developed. In order to remove surface active compounds from water sample solutions, a TiO2/Al2O3 photocatalysis system was applied. The linear calibration graph of U(VI) in the simultaneous presence of 2mgL(-1) anionic, cationic and nonionic surfactants, in the range from 5×10(-10) to 2×10(-8)molL(-1) (180s) was achieved. The detection limit obtained in the solution after the use of UV-irradiation (10min) with TiO2/Al2O3 photocatalyst (0.9g) is equal to 2.3×10(-10)mol L(-1). The presented procedure was successfully applied to uranium determination in SLEW-3 certified reference material, and to river water samples. In addition, a very low detection limit (2.9×10(-11)molL(-1)) for accumulation time of 180s was achieved due to application of a reversible deposited mediator (Zn) in the step of lead film electrode preparation.
Katarzyna Tyszczuk-Rotko; Katarzyna Domańska; Bożena Czech; Marek Rotko. Development simple and sensitive voltammetric procedure for ultra-trace determination of U(VI). Talanta 2017, 165, 474 -481.
AMA StyleKatarzyna Tyszczuk-Rotko, Katarzyna Domańska, Bożena Czech, Marek Rotko. Development simple and sensitive voltammetric procedure for ultra-trace determination of U(VI). Talanta. 2017; 165 ():474-481.
Chicago/Turabian StyleKatarzyna Tyszczuk-Rotko; Katarzyna Domańska; Bożena Czech; Marek Rotko. 2017. "Development simple and sensitive voltammetric procedure for ultra-trace determination of U(VI)." Talanta 165, no. : 474-481.
Michael Nazarkovsky; V.M. Bogatyrov; Bożena Czech; Mariia Galaburda; Grzegorz Wójcik; Oleksandr Kolomys; V.V. Strelchuk; Maria Malysheva; O.I. Oranska; V.M. Gun’Ko. Synthesis and properties of zinc oxide photocatalyst by high-temperature processing of resorcinol-formaldehyde/zinc acetate mixture. Journal of Photochemistry and Photobiology A: Chemistry 2017, 334, 36 -46.
AMA StyleMichael Nazarkovsky, V.M. Bogatyrov, Bożena Czech, Mariia Galaburda, Grzegorz Wójcik, Oleksandr Kolomys, V.V. Strelchuk, Maria Malysheva, O.I. Oranska, V.M. Gun’Ko. Synthesis and properties of zinc oxide photocatalyst by high-temperature processing of resorcinol-formaldehyde/zinc acetate mixture. Journal of Photochemistry and Photobiology A: Chemistry. 2017; 334 ():36-46.
Chicago/Turabian StyleMichael Nazarkovsky; V.M. Bogatyrov; Bożena Czech; Mariia Galaburda; Grzegorz Wójcik; Oleksandr Kolomys; V.V. Strelchuk; Maria Malysheva; O.I. Oranska; V.M. Gun’Ko. 2017. "Synthesis and properties of zinc oxide photocatalyst by high-temperature processing of resorcinol-formaldehyde/zinc acetate mixture." Journal of Photochemistry and Photobiology A: Chemistry 334, no. : 36-46.
The kinetics and mechanism of diclofenac and naproxen sorption onto UV and/or H2O2 treated functionalized CNTOHs and CNTCOOHs were studied.
Bożena Czech. The sorption of the nonsteroidal anti-inflammatory drugs diclofenac and naproxen onto UV and/or H2O2 treated MWCNT-COOH and MWCNT-OH. RSC Advances 2016, 6, 110383 -110392.
AMA StyleBożena Czech. The sorption of the nonsteroidal anti-inflammatory drugs diclofenac and naproxen onto UV and/or H2O2 treated MWCNT-COOH and MWCNT-OH. RSC Advances. 2016; 6 (111):110383-110392.
Chicago/Turabian StyleBożena Czech. 2016. "The sorption of the nonsteroidal anti-inflammatory drugs diclofenac and naproxen onto UV and/or H2O2 treated MWCNT-COOH and MWCNT-OH." RSC Advances 6, no. 111: 110383-110392.
Bożena Czech; Waldemar Buda. Multicomponent nanocomposites for elimination of diclofenac in water based on an amorphous TiO 2 active in various light sources. Journal of Photochemistry and Photobiology A: Chemistry 2016, 330, 64 -70.
AMA StyleBożena Czech, Waldemar Buda. Multicomponent nanocomposites for elimination of diclofenac in water based on an amorphous TiO 2 active in various light sources. Journal of Photochemistry and Photobiology A: Chemistry. 2016; 330 ():64-70.
Chicago/Turabian StyleBożena Czech; Waldemar Buda. 2016. "Multicomponent nanocomposites for elimination of diclofenac in water based on an amorphous TiO 2 active in various light sources." Journal of Photochemistry and Photobiology A: Chemistry 330, no. : 64-70.
Highlights•Kinetics of FA adsorption followed a pseudo-second order regime.•Langmuir, Temkin or Dubinin-Radushkevich models revealed the highest applicability.•FA sorption mechanism described π-π, heterogenous and electrostatic interactions.•Treated CNT behaved completely different from previously published in literature. AbstractThe fate of carbon nanotubes (CNT) in the environment will be governed by the presence of natural dissolved organic matter (DOM). Many studies indicate that CNT create stabilized suspensions in the presence of DOM. Easier transport in the environment may indicate their greater hazard. However these studies describe the interactions of DOM with as produced CNT. In the present studies the interactions of UV and/or H2O2 treated wastewater containing CNTOH or CNTCOOH with the naturally occurred fulvic acids (FA) were presented. FA sorption, both kinetics and mechanism, were described using batch regime. The sorption of FA followed a pseudo-second order kinetics and was described with the highest accuracy by Langmuir or Dubinin-Radushkevich model for CNTOHs and Langmuir, Temkin or Dubinin-Radushkevich - for CNTCOOHs. The mechanism of FA sorption onto CNTOHs was ascribed to π-π, heterogeneous and electrostatic interactions. The π-π and electrostatic interactions can the mostly defined FA adsorption onto CNTCOOHs. The parameters affecting FA sorption were combination of porosity and dispersity.
Bożena Czech. The interactions of UV and/or H2O2 treated CNTOH and CNTCOOH with environmental fulvic acids. Environmental Research 2016, 150, 173 -181.
AMA StyleBożena Czech. The interactions of UV and/or H2O2 treated CNTOH and CNTCOOH with environmental fulvic acids. Environmental Research. 2016; 150 ():173-181.
Chicago/Turabian StyleBożena Czech. 2016. "The interactions of UV and/or H2O2 treated CNTOH and CNTCOOH with environmental fulvic acids." Environmental Research 150, no. : 173-181.
The presence of caffeine in treated wastewaters indicates its low removal efficiency during conventional wastewater treatment processes. A great efficiency has been achieved by photocatalytic processes in the removal of resistant organic pollutants from aquatic systems. In this study, the application of three-layer perovskite Dion-Jacobson phase CsBa2M3O10 (M = Ta, Nb) and oxynitride crystals in the removal of caffeine was tested by photocatalysis under UVA and visible light irradiation. The as-grown oxide and oxynitride crystals have pure phase, different crystal shapes, and optical band gap energies (1.8–3.5 eV). The highest efficiency in the removal of caffeine under UVA light was observed for LaTiO2N (80% caffeine removal and 55% TOC removal), whereas the lowest efficiency in the removal of caffeine was noted for CsBa2Ta3O10 and CaTaO2N (60–65% caffeine removal). Compared with UVA, the photodegradation process of caffeine over the crystals under visible light proceeded differently. The pseudo-first order kinetic model was applied to evaluate the rate of caffeine removal by the studied crystals. The highest k1 values were obtained for the LaTiO2N and SrTaO2N crystals at 365 nm and 550 nm, respectively. The possible photodegradation mechanisms of caffeine over the studied crystals are also demonstrated. The photocatalytic treatment of model wastewaters containing caffeine using the crystals under visible light did not reveal toxicity to Vibrio fischeri and Lepidium sativum, except CaTaO2N crystals for V. fischeri under UVA light.
Bożena Czech; Mirabbos Hojamberdiev. UVA- and visible-light-driven photocatalytic activity of three-layer perovskite Dion-Jacobson phase CsBa2M3O10 (M=Ta, Nb) and oxynitride crystals in the removal of caffeine from model wastewater. Journal of Photochemistry and Photobiology A: Chemistry 2016, 324, 70 -80.
AMA StyleBożena Czech, Mirabbos Hojamberdiev. UVA- and visible-light-driven photocatalytic activity of three-layer perovskite Dion-Jacobson phase CsBa2M3O10 (M=Ta, Nb) and oxynitride crystals in the removal of caffeine from model wastewater. Journal of Photochemistry and Photobiology A: Chemistry. 2016; 324 ():70-80.
Chicago/Turabian StyleBożena Czech; Mirabbos Hojamberdiev. 2016. "UVA- and visible-light-driven photocatalytic activity of three-layer perovskite Dion-Jacobson phase CsBa2M3O10 (M=Ta, Nb) and oxynitride crystals in the removal of caffeine from model wastewater." Journal of Photochemistry and Photobiology A: Chemistry 324, no. : 70-80.
The application of oxidation processes such as UV and/or H2O2 will change the physicochemical properties of carbon nanotubes (CNT). It may affect the sorption affinity of CNT to different contaminants and then affect their fate in the environment. In the present study the adsorption of two very common used pharmaceuticals (diclofenac and naproxen) onto CNT treated by UV, H2O2 or UV/H2O2 was investigated. Four different adsorption models (Freundlich, Langmuir, Temkin, Dubinin-Radushkevich) were tested. The best fitting of experimental data was observed for Freundlich or Langmuir model. The significant relationships between Q calculated from Langmuir model with O% and dispersity were observed. Kinetics of diclofenac and naproxen followed mainly pseudo-second order indicating for chemisorption limiting step of adsorption. The data showed that the mechanism of sorption was physical or chemical depending on the type of CNT modification.
Bożena Czech; Patryk Oleszczuk. Sorption of diclofenac and naproxen onto MWCNT in model wastewater treated by H2O2 and/or UV. Chemosphere 2016, 149, 272 -278.
AMA StyleBożena Czech, Patryk Oleszczuk. Sorption of diclofenac and naproxen onto MWCNT in model wastewater treated by H2O2 and/or UV. Chemosphere. 2016; 149 ():272-278.
Chicago/Turabian StyleBożena Czech; Patryk Oleszczuk. 2016. "Sorption of diclofenac and naproxen onto MWCNT in model wastewater treated by H2O2 and/or UV." Chemosphere 149, no. : 272-278.