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The study aimed to investigate potential of zinc oxide nanoparticles (ZnO NPs) synthesized by Corriandrum sativum leaf extract as nutrient source for Vigna radiate seeds in relation to seedling growth and germination Vigna radiate seeds. The ZnO NPs were prepared at 100 °C [[ZnO [A]] and calcined at 550 °C [[ZnO [B]]. The synthesized ZnO NPs was characterized by TEM, FTIR and XPS. The ZnO NPs were found to be in irregular shapes for ZnO NPs (A) and triangular and quasi spherical for ZnO NPs (B). The suitable concentrations of ZnO NPs for seedling emergence and germination of Vigna radiate seeds were then explored at varying the ZnO NP levels (0, 15, 62, 125, and 250 mg/L). Accordingly, Vigna radiate seeds were not significantly affected by ZnO NPs. Therefore, the potential of green synthesized ZnO NPs has been recognized as a nano-based nutrient source for agricultural applications.
G. Yashni; Adel Al-Gheethi; Radin Mohamed; Vikneswara Abirama Shanmugan; Mohammed Nasser Ali Al-Sahari. Phytotoxicity evaluation of ZnO nanoparticles synthesized from Corriandrum sativum leaf extract. Materials Today: Proceedings 2021, 1 .
AMA StyleG. Yashni, Adel Al-Gheethi, Radin Mohamed, Vikneswara Abirama Shanmugan, Mohammed Nasser Ali Al-Sahari. Phytotoxicity evaluation of ZnO nanoparticles synthesized from Corriandrum sativum leaf extract. Materials Today: Proceedings. 2021; ():1.
Chicago/Turabian StyleG. Yashni; Adel Al-Gheethi; Radin Mohamed; Vikneswara Abirama Shanmugan; Mohammed Nasser Ali Al-Sahari. 2021. "Phytotoxicity evaluation of ZnO nanoparticles synthesized from Corriandrum sativum leaf extract." Materials Today: Proceedings , no. : 1.
This study aims to investigate the potential of Coriandrum Sativum leaves as a green biosorbent. The produced biosorbent was characterized by Field Emission Scanning Electron Microscopy (FESEM), Fourier-Transform Infrared Spectroscopy (FTIR) and Thermogravimetric analysis/ Differential Scanning Calorimetry (TGA/DSC) analyses. FESEM results indicate the formation of irregular shapes with non-uniform distribution. FTIR analysis revealed the presence of –OH groups, C–H stretching of alkanes, and amide areas that are characteristics of proteins and enzymes. TGA/DSC specifies the weight loss after 340 °C is attributed to the degradation of lignin cellulose and hemicelluloses content in C. Sativum. Results from the characterization indicates that the use of C. Sativum leaves can be a promising green biosorbent for the treatment of polluted water owing to its low cost and highly availability.
G. Yashni; Adel Al-Gheethi; Radin Maya Saphira Radin Mohamed; Vikneswara Abirama Shanmugan; Juliza Abu Bakar. Characterization of Coriandrum sativum leaves as a sustainable green biosorbent. Materials Today: Proceedings 2021, 1 .
AMA StyleG. Yashni, Adel Al-Gheethi, Radin Maya Saphira Radin Mohamed, Vikneswara Abirama Shanmugan, Juliza Abu Bakar. Characterization of Coriandrum sativum leaves as a sustainable green biosorbent. Materials Today: Proceedings. 2021; ():1.
Chicago/Turabian StyleG. Yashni; Adel Al-Gheethi; Radin Maya Saphira Radin Mohamed; Vikneswara Abirama Shanmugan; Juliza Abu Bakar. 2021. "Characterization of Coriandrum sativum leaves as a sustainable green biosorbent." Materials Today: Proceedings , no. : 1.
This study aims to investigate the potential of green zinc oxide nanoparticles (ZnO NPs) in reusability performance for photocatalysis of bathroom greywater. It was found that ZnO NPs photocatalytic treatment of real bathroom greywater (RBGW) effluent reduces both the COD and BOD5 concentrations by 72.01, 62.75 and 57.79% (COD) and 70.18, 60.32 and 57.56% (BOD5) respectively for the first, second and third cycle. Meanwhile for the photocatalysis of ABGW, it was observed that COD and BOD5 were removed by 82.27, 68.27 and 60.96% (COD) and 82.91, 74.37 and 60.39% (BOD5) for the first, second and third cycle respectively. Besides, TSS and turbidity were reduced by 52.34, 46.85 and 37.98% (TSS) and 80.38, 67.65 and 56.81% (turbidity) respectively in RBGW and for ABGW, TSS and turbidity were reduced by 60.94, 52.37 and 41.95% (TSS) and 80.68, 72.63 and 69.91% (turbidity) for the first, second and third experimental run respectively. This designates that green ZnO NPs can be reused multiple times as an effective photocatalyst. However, ZnO NPs were used in the dispersed form, which causes difficulty in the separation of ZnO NPs from the greywater. Thus, further investigation in producing appropriate fixed film should be focused. Moreover, phytotoxicity analysis of V. radiate seeds in the treated ABGW and RBGW was not significantly different from their germination in water. This assured the less lethal nature of the degradation metabolites in greywater effluent. This investigation would be a solution to wastewater treatment plant for reusing photocatalyst in order to achieve the development of advanced and greener technologies.
G. Yashni; Adel Al-Gheethi; Radin Mohamed; Mohammed Al-Sahari. Reusability performance of green zinc oxide nanoparticles for photocatalysis of bathroom greywater. Water Practice and Technology 2020, 16, 364 -376.
AMA StyleG. Yashni, Adel Al-Gheethi, Radin Mohamed, Mohammed Al-Sahari. Reusability performance of green zinc oxide nanoparticles for photocatalysis of bathroom greywater. Water Practice and Technology. 2020; 16 (2):364-376.
Chicago/Turabian StyleG. Yashni; Adel Al-Gheethi; Radin Mohamed; Mohammed Al-Sahari. 2020. "Reusability performance of green zinc oxide nanoparticles for photocatalysis of bathroom greywater." Water Practice and Technology 16, no. 2: 364-376.
Azo dyes including C. I. Basic Brown 16 (BB16) are one of the coloured organic compounds that have adverse effects on human health and the environment. The current work aims to optimise the adsorption of C.I BB16 in aqueous solution using durian (Durio zibethinus murray) shell as a low-cost green adsorbent. Durian shell was characterised by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The adsorption process was optimised with response surface methodology (RSM) based on pH (4–8), time (30–240 min), durian shell dosage (0.1–1.0 g/L) and initial concentration of C.I BB16 (10–20 ppm). The removal efficiency was determined based on the reduction of chemical oxygen demand (COD) and the decolourisation of C.I BB16. The techno-economic analysis was described in the current work to know the economic feasibility of durian shells as an adsorbent. The SEM images showed that durian shell adsorbent has a smooth surface with no pores. FTIR spectra confirmed the presence of -C-O, =C–H, C=C, -C-O-C and O-H bonds in durian shell. Maximum decolourisation (77.6%) and COD removal (80.6%) for C.I BB16 was achieved with the interaction between pH, time and adsorbent dose and initial concentration of C.I BB16. The optimal operating factors for adsorption of C.I BB16 recorded at pH 8, time (30 min), durian shell dosage (1 g/L) and 15 mg /L of C.I BB16 concentrations were 77.61 vs. 74.26 (%) of C.I BB16 removal and 80.60 vs. 78.72 (%) of COD removal with an R2 coefficient of 0.94 at p < 0.05. The specific cost of durian shell coagulant production is USD 172.71 per ton which is lower than the market price of honeydew peels-activated carbon (HDP-AC) (USD 261.81) and the commercial market price of activated carbon which is USD 1000.00/tons. These findings indicated that the durian adsorbent provides alternative methods for treating hair dye wastewater. These findings indicated that durian shells have a high potential for the adsorption of C.I BB16 in aqueous solution.
Yashni Gopalakrishnan; Adel Al-Gheethi; Marlinda Abdul Malek; Mawar Marisa Azlan; Mohammed Al-Sahari; Radin Radin Mohamed; Sadeq Alkhadher; Efaq Noman. Removal of Basic Brown 16 from Aqueous Solution Using Durian Shell Adsorbent, Optimisation and Techno-Economic Analysis. Sustainability 2020, 12, 8928 .
AMA StyleYashni Gopalakrishnan, Adel Al-Gheethi, Marlinda Abdul Malek, Mawar Marisa Azlan, Mohammed Al-Sahari, Radin Radin Mohamed, Sadeq Alkhadher, Efaq Noman. Removal of Basic Brown 16 from Aqueous Solution Using Durian Shell Adsorbent, Optimisation and Techno-Economic Analysis. Sustainability. 2020; 12 (21):8928.
Chicago/Turabian StyleYashni Gopalakrishnan; Adel Al-Gheethi; Marlinda Abdul Malek; Mawar Marisa Azlan; Mohammed Al-Sahari; Radin Radin Mohamed; Sadeq Alkhadher; Efaq Noman. 2020. "Removal of Basic Brown 16 from Aqueous Solution Using Durian Shell Adsorbent, Optimisation and Techno-Economic Analysis." Sustainability 12, no. 21: 8928.
Most of the fish pellet in market is quite low in requisites of water stability and can swell easily when it is immersed in water. Therefore, the soluble minerals and vitamins will be easily drained out from the pellet. Hence, a study was conducted to reduce the degree of mineral leaching and swelling while the floating time was maximized. The study was conducted to study the effect of varying the concentration of protein, vitamins, fats and carbohydrate on the swelling, leaching, floating properties and morphology of the developed soft-dry fish pellets for Red Tilapia from household waste. The result shows the relationship between fish feed formulation and properties of fish feed pellet produced. Fish feed of formulation of 50% exhibit the desired swelling, leaching and surface morphology with swelling rate of 10.20%, absorbance of 0.023 for leaching test and with few pores on the surface of the fish feed.
G. Yashni; Adel AlGheethi; Radin Maya Saphira Radin Mohamed; Vikneswara Abirama Shanmugan; Nadirul Hasraf Mat Nayan; Juliza Abu Bakar; Siti Nor Aishah Mohd Salleh. Physical properties of fish feed containing household waste as an alternative substitute in newly developed soft-dry fish feed for red tilapia. Materials Today: Proceedings 2020, 31, 65 -68.
AMA StyleG. Yashni, Adel AlGheethi, Radin Maya Saphira Radin Mohamed, Vikneswara Abirama Shanmugan, Nadirul Hasraf Mat Nayan, Juliza Abu Bakar, Siti Nor Aishah Mohd Salleh. Physical properties of fish feed containing household waste as an alternative substitute in newly developed soft-dry fish feed for red tilapia. Materials Today: Proceedings. 2020; 31 ():65-68.
Chicago/Turabian StyleG. Yashni; Adel AlGheethi; Radin Maya Saphira Radin Mohamed; Vikneswara Abirama Shanmugan; Nadirul Hasraf Mat Nayan; Juliza Abu Bakar; Siti Nor Aishah Mohd Salleh. 2020. "Physical properties of fish feed containing household waste as an alternative substitute in newly developed soft-dry fish feed for red tilapia." Materials Today: Proceedings 31, no. : 65-68.
Direct discharge of bathroom greywater (BGW) with high content of chemical derivatives from soap and detergent products may alter the receiving environment. Therefore, this research was undertaken to study the quality and effects of BGW and treat the BGW by solar water distillation (SWD). Three samples of BGW were taken at the study area and designated as House A, House B, and House C. Testing of the soil was conducted prior to the irrigation using greywater to specify the soil characteristics. Towards the end of this study, chemical properties of the soil (pH), electrical conductivity (EC), cation exchange capacity (CEC), exchangeable sodium percentage (ESP) and sodium adsorption ratio (SAR) of the soil were determined. SWD treatment was tested for pH, biochemical Oxygen demand (BOD), chemical Oxygen demand (COD) and total Suspended Solid (TSS) of the BGW. The pH of the soil before irrigation was 3.22 ± 0.02 and increased to 4.06 ± 0.12, 4.32 ± 0.09, and 4.67 ± 0.05 after irrigation with BGW from House A, B, and C respectively. The highest EC (756 ± 5.68 µs/cm) was found in the BGW from House A, indicating the presence of high range of salt content. For saturated hydraulic conductivity; tap water recorded the highest value of 51.88 cm/h, followed by 24.24 cm/h, 31.12 cm/h, and 45.01 cm/h for irrigation with BGW from House A, B, and C respectively. For CEC, ESP, and SAR, it was found that the BGW from House A recorded the highest values compared to others, with values of 0.835 meq/100gm, 36.41%, and 10.73 respectively. Treatment of BGW with SWD shows the highest removal percentage BOD is 60%, COD is 72.2%, TSS is 64.7%. Hence, the use of SWD has a good potential to enhance the quality of the BGW before directly discharged to the water bodies.
G. Yashni; Radin Maya Saphira Radin Mohamed; Adel Al-Gheethi; Siti Nor Hidayah Arifin. Discharge quality of bathroom greywater effects on soil and treatment by solar water distillation. Materials Today: Proceedings 2020, 31, A98 -A105.
AMA StyleG. Yashni, Radin Maya Saphira Radin Mohamed, Adel Al-Gheethi, Siti Nor Hidayah Arifin. Discharge quality of bathroom greywater effects on soil and treatment by solar water distillation. Materials Today: Proceedings. 2020; 31 ():A98-A105.
Chicago/Turabian StyleG. Yashni; Radin Maya Saphira Radin Mohamed; Adel Al-Gheethi; Siti Nor Hidayah Arifin. 2020. "Discharge quality of bathroom greywater effects on soil and treatment by solar water distillation." Materials Today: Proceedings 31, no. : A98-A105.