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The corrosion inhibition efficiencies of benzoic acid (C1), para-hydroxybenzoic acid (C2), and 3,4-dihydroxybenzoic acid (C3) have been evaluated in 0.5 M HCl toward protecting AISI 316 stainless steel (SS).
Mustapha Alahiane; Rachid Oukhrib; Youssef Ait Albrimi; Hicham Abou Oualid; Hassan Bourzi; Rachid Ait Akbour; Ali Assabbane; Ayssar Nahlé; Mohamed Hamdani. Experimental and theoretical investigations of benzoic acid derivatives as corrosion inhibitors for AISI 316 stainless steel in hydrochloric acid medium: DFT and Monte Carlo simulations on the Fe (110) surface. RSC Advances 2020, 10, 41137 -41153.
AMA StyleMustapha Alahiane, Rachid Oukhrib, Youssef Ait Albrimi, Hicham Abou Oualid, Hassan Bourzi, Rachid Ait Akbour, Ali Assabbane, Ayssar Nahlé, Mohamed Hamdani. Experimental and theoretical investigations of benzoic acid derivatives as corrosion inhibitors for AISI 316 stainless steel in hydrochloric acid medium: DFT and Monte Carlo simulations on the Fe (110) surface. RSC Advances. 2020; 10 (67):41137-41153.
Chicago/Turabian StyleMustapha Alahiane; Rachid Oukhrib; Youssef Ait Albrimi; Hicham Abou Oualid; Hassan Bourzi; Rachid Ait Akbour; Ali Assabbane; Ayssar Nahlé; Mohamed Hamdani. 2020. "Experimental and theoretical investigations of benzoic acid derivatives as corrosion inhibitors for AISI 316 stainless steel in hydrochloric acid medium: DFT and Monte Carlo simulations on the Fe (110) surface." RSC Advances 10, no. 67: 41137-41153.
Biosorption using natural waste has emerged as a potential and promising strategy for removal of toxic dyes from wastewaters in comparison to conventional ones. Herein, the Codium decorticatum alga (CDA) was biologically identified and used as a biosorbent for anionic and cationic dyes from aqueous solutions. SEM analysis showed a rough surface with an irregular edge and shape while hydroxyl, amine, sulfur and carboxyl functional groups were identified using FTIR analysis. TGA/DTG confirmed the stability of CDA and the adsorption process. Batch studies were conducted to investigate the effect of operational factors such as initial pH, biosorbent dosage, temperature, initial concentration, and solid/liquid contact time on the biosorption of crystal violet (CV) and Congo red (CR) dyes. For both CV and CR dyes, the biosorption kinetics was accurately described by the pseudo-second-order model and the Langmuir isotherm was found to be best fitted for equilibrium data. Maximum uptake capacities have attained up to 278.46 mg/g for CV and 191.01 mg/g for CR. The CV and CR dye biosorption mechanism was ultimately manifested through the electrostatic interactions. The regeneration study showed that the CDA presents excellent reuse performance up to four consecutive cycles. The process optimization was performed using the response surface methodology based on Box–Behnken design (RSM-BDD). Accordingly, the optimum predicted removal efficiencies using RSM-BBD for CV and CR were obtained, respectively, at 96.9 and 89.8% using a CDA dose of 1.5 g/L, dye concentration of 20 mg/L, pH of 10 for CV, and pH of 4 for CR. Overall, CDA behaves as an efficient, recyclable, cheap, and eco-friendly adsorbent for cleaning-up of dyed effluents.
Hicham Abou Oualid; Youness Abdellaoui; Mohamed Laabd; Mahmoud El Ouardi; Younes Brahmi; Mohamed Iazza; Jaouad Abou Oualid. Eco-Efficient Green Seaweed Codium decorticatum Biosorbent for Textile Dyes: Characterization, Mechanism, Recyclability, and RSM Optimization. ACS Omega 2020, 5, 22192 -22207.
AMA StyleHicham Abou Oualid, Youness Abdellaoui, Mohamed Laabd, Mahmoud El Ouardi, Younes Brahmi, Mohamed Iazza, Jaouad Abou Oualid. Eco-Efficient Green Seaweed Codium decorticatum Biosorbent for Textile Dyes: Characterization, Mechanism, Recyclability, and RSM Optimization. ACS Omega. 2020; 5 (35):22192-22207.
Chicago/Turabian StyleHicham Abou Oualid; Youness Abdellaoui; Mohamed Laabd; Mahmoud El Ouardi; Younes Brahmi; Mohamed Iazza; Jaouad Abou Oualid. 2020. "Eco-Efficient Green Seaweed Codium decorticatum Biosorbent for Textile Dyes: Characterization, Mechanism, Recyclability, and RSM Optimization." ACS Omega 5, no. 35: 22192-22207.
The biofilm formation on the surfaces which are in direct contact with food products might lead to their contamination and, consequently, present serious health problems for the consumers. The goals of the present work were to study P. aeruginosa biofilm formation on two granites and to investigate the efficiency of sodium hypochlorite (NaCLO) against the same biofilm formed on these substrata using the plate count method (PCM) and epifluorescence microscopy (EP). More biofilm cells adhered to Rosa Porrino than Gris Pinhel, and the PCM method indicated that NaCLO was efficient against the biofilm installed on the Gris Pinhel at the concentration of 1.5% after 15 min of treatment, while it was not efficient against the one installed on the Rosa Porrino. By contrast, the EP showed that the biofilm persists on two granites after NaCLO treatment, at different concentrations and contact times. In addition, the surface properties of granites such as mineral composition, roughness, and physicochemical properties were determined by X-ray diffraction (XRD), scanning electron microscopy coupled with electron diffraction spectroscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared (FTIR), atomic force microscopy (AFM), and contact angle measurement (CAM), respectively. The results revealed that Gris Pinhel is hydrophilic with a high roughness value and Rosa Porrino is hydrophobic with low roughness, while both of them contain the quartz, feldspar, and mica as the main dominant compositions.
Khaddouj Amzil; Fatima Hamadi; Hassan Latrache; Rachida Mimouni; Hicham Abou Oualid; Khadija Azelmad; Aissa Saidi; Abdallah Elboulani; Mustapha Mabrouki. Pseudomonas aeruginosa Biofilm Removal from Two Kinds of Granite Commonly Found in Catering Kitchen. International Journal of Microbiology 2020, 2020, 1 -14.
AMA StyleKhaddouj Amzil, Fatima Hamadi, Hassan Latrache, Rachida Mimouni, Hicham Abou Oualid, Khadija Azelmad, Aissa Saidi, Abdallah Elboulani, Mustapha Mabrouki. Pseudomonas aeruginosa Biofilm Removal from Two Kinds of Granite Commonly Found in Catering Kitchen. International Journal of Microbiology. 2020; 2020 ():1-14.
Chicago/Turabian StyleKhaddouj Amzil; Fatima Hamadi; Hassan Latrache; Rachida Mimouni; Hicham Abou Oualid; Khadija Azelmad; Aissa Saidi; Abdallah Elboulani; Mustapha Mabrouki. 2020. "Pseudomonas aeruginosa Biofilm Removal from Two Kinds of Granite Commonly Found in Catering Kitchen." International Journal of Microbiology 2020, no. : 1-14.
Nowadays, theoretical calculation tools have become powerful in predicting the behavior of corrosion inhibitors on the surface of metals and, therefore, avoiding energy consumption and the cost of experimental tests. This work aims to predict the inhibitory power of some furan derivatives on Cu (111), Fe (110), Al (111) and Sn (111) surfaces in acidic media. For this purpose, three furan derivatives—furan-2-carbaldehyde (FF1), 5-(hydroxymethyl)furfural (FF2) and 5-(hydroxymethyl)furoic acid (FF3)—have been selected to compare their intrinsic properties against corrosion as well as their behavior on iron (Fe), copper (Cu), aluminum (Al) and tin (Sn) surfaces in acid medium. Typically, the anti-corrosive properties of FF1, FF2 and FF3 were studied by using quantum chemical calculations and Monte Carlo simulations. Density Functional Theory (DFT), lowest unoccupied (ELUMO) and highest occupied (EHOMO) molecular orbital energies, energy gap (∆E), chemical hardness (η), softness (σ), electronegativity (χ), electrophilicity (ω) and nucleophilicity (ε) have been calculated and discussed. Theoretical vibrational spectra were also calculated to exhibit the functional groups in the selected chemicals. On the other hand, the adsorption behaviors of FF1, FF2 and FF3 were studied on the Fe(110), Cu(111), Al(111) and Sn(111) surfaces. As a result, the adsorption energies of all molecules are ordered as Fe(110) < Cu(111) < Al(111) < Sn(111) and FF3 seems to be more effective as a corrosion inhibitor due to the existence of both carboxylic acid and hydroxyl groups, which consist of favorable sites of adsorption into the metal surface.
Hassan Bourzi; Rachid Oukhrib; Brahim El Ibrahimi; Hicham Abou Oualid; Youness Abdellaoui; Bouchra Balkard; Souad El Issami; Mustapha Hilali; Lahcen Bazzi; Christophe Len. Furfural Analogs as Sustainable Corrosion Inhibitors—Predictive Efficiency Using DFT and Monte Carlo Simulations on the Cu(111), Fe(110), Al(111) and Sn(111) Surfaces in Acid Media. Sustainability 2020, 12, 3304 .
AMA StyleHassan Bourzi, Rachid Oukhrib, Brahim El Ibrahimi, Hicham Abou Oualid, Youness Abdellaoui, Bouchra Balkard, Souad El Issami, Mustapha Hilali, Lahcen Bazzi, Christophe Len. Furfural Analogs as Sustainable Corrosion Inhibitors—Predictive Efficiency Using DFT and Monte Carlo Simulations on the Cu(111), Fe(110), Al(111) and Sn(111) Surfaces in Acid Media. Sustainability. 2020; 12 (8):3304.
Chicago/Turabian StyleHassan Bourzi; Rachid Oukhrib; Brahim El Ibrahimi; Hicham Abou Oualid; Youness Abdellaoui; Bouchra Balkard; Souad El Issami; Mustapha Hilali; Lahcen Bazzi; Christophe Len. 2020. "Furfural Analogs as Sustainable Corrosion Inhibitors—Predictive Efficiency Using DFT and Monte Carlo Simulations on the Cu(111), Fe(110), Al(111) and Sn(111) Surfaces in Acid Media." Sustainability 12, no. 8: 3304.
In this work, a bifunctional nanohybrid silver/zinc oxide material (Ag/ZnO) has been synthesized by a rapid route using sodium alginate simultaneously as a sacrificial template and silver reducing agent.
Hicham Abou Oualid; Othmane Amadine; Younes Essamlali; Issam Meftah Kadmiri; Hicham El Arroussi; Mohamed Zahouily. Highly efficient catalytic/sonocatalytic reduction of 4-nitrophenol and antibacterial activity through a bifunctional Ag/ZnO nanohybrid material prepared via a sodium alginate method. Nanoscale Advances 2019, 1, 3151 -3163.
AMA StyleHicham Abou Oualid, Othmane Amadine, Younes Essamlali, Issam Meftah Kadmiri, Hicham El Arroussi, Mohamed Zahouily. Highly efficient catalytic/sonocatalytic reduction of 4-nitrophenol and antibacterial activity through a bifunctional Ag/ZnO nanohybrid material prepared via a sodium alginate method. Nanoscale Advances. 2019; 1 (8):3151-3163.
Chicago/Turabian StyleHicham Abou Oualid; Othmane Amadine; Younes Essamlali; Issam Meftah Kadmiri; Hicham El Arroussi; Mohamed Zahouily. 2019. "Highly efficient catalytic/sonocatalytic reduction of 4-nitrophenol and antibacterial activity through a bifunctional Ag/ZnO nanohybrid material prepared via a sodium alginate method." Nanoscale Advances 1, no. 8: 3151-3163.
The morphology and properties of polypropylene (PP)/organoclay nanocomposites prepared by melt processing were investigated with a special interest on the different effects of the use of different grafted PP as compatibilizers, i.e., maleic anhydride or silane-grafted species, PP-g-MA or PP-g-Si. When either PP-g-MA or PP-g-Si was added, better improvement of properties was achieved. The addition of PP-g-Si was found to increase the crystallization temperature upon the clay addition in comparison to PP-g-MA. Moreover, the PP-g-MA proved to be more efficient than PP-g-Si. The degree of reinforcement was found to be dependent on the interaction forces between the polymer matrix/clay, which resulted in intercalated/partial exfoliated structures for PP-g-Si while increasing clay content induced a change from exfoliated to intercalated using PP-g-MA, as revealed by transmission electron microscopy observations and X-ray diffraction analysis.
Heriarivelo Risite; Hicham Abou Oualid; Khalil El Mabrouk. Effects of Vinyltriethoxysilane and Maleic Anhydride Grafted Polypropylenes on the Morphological, Thermal, Rheological, and Mechanical Properties of Polypropylene/Clay Nanocomposites. Proceedings 2018, 3, 6 .
AMA StyleHeriarivelo Risite, Hicham Abou Oualid, Khalil El Mabrouk. Effects of Vinyltriethoxysilane and Maleic Anhydride Grafted Polypropylenes on the Morphological, Thermal, Rheological, and Mechanical Properties of Polypropylene/Clay Nanocomposites. Proceedings. 2018; 3 (1):6.
Chicago/Turabian StyleHeriarivelo Risite; Hicham Abou Oualid; Khalil El Mabrouk. 2018. "Effects of Vinyltriethoxysilane and Maleic Anhydride Grafted Polypropylenes on the Morphological, Thermal, Rheological, and Mechanical Properties of Polypropylene/Clay Nanocomposites." Proceedings 3, no. 1: 6.
In the current study, Anatase/rutile TiO2 and Anatase/rutile [email protected] composites were successfully prepared by a simple method using mechanical technique. The as-prepared composite materials powders were characterized by Powder X-ray diffraction analysis (PXRD), Scanning electronic microscopy (SEM), and Solid-state UV-visible spectroscopy. X-ray patterns showed the fractional phase transformation from TiO2 anatase to rutile. SEM observations revealed that the particle shape was affected by the ball milling process. Energy-dispersive X-ray spectroscopy (EDS) analysis exhibits quantitatively the elemental composition of Ti and O. UV-Visible spectroscopy confirmed that the bandgap is slightly affected using Tauc.
Imane Ellouzi; Hicham Abou Oualid. Efficient and Eco-Friendly Mechanical Milling Preparation of Anatase/Rutile TiO2-Glucose Composite with Energy Gap Enhancement. Proceedings 2018, 3, 3 .
AMA StyleImane Ellouzi, Hicham Abou Oualid. Efficient and Eco-Friendly Mechanical Milling Preparation of Anatase/Rutile TiO2-Glucose Composite with Energy Gap Enhancement. Proceedings. 2018; 3 (1):3.
Chicago/Turabian StyleImane Ellouzi; Hicham Abou Oualid. 2018. "Efficient and Eco-Friendly Mechanical Milling Preparation of Anatase/Rutile TiO2-Glucose Composite with Energy Gap Enhancement." Proceedings 3, no. 1: 3.