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- W3137614306 abstract "Developing cost- effective green sorbents for enhanced removal of organophosphorus pesticides from contaminated water remains inspirational. In this study, a novel nanoscale Moringa olivera seeds waste (nMSW) was produced and applied for the first time as an effective bio-nanosrbent for chlorpyrifos (CPF) removal from contaminated wastewater. The nMSW sorbent was characterized and the parameters that affect the biosorption process like CPF concentration (10–80 μg/mL), biosrbent dose (0.05–0.5 g), solution pH (5–9), exposure time (10–1440 min) and temperature (25–45 °C) were optimized. The CPF adsorption by nMSW follows in order Langmuir >Temken >Kiselev adsorption models. The maximum adsorption capacity of nMSW for CPF has shown 2.75 folds increase (25 mg g−1) compared to that of the conventional bulk MSW and superior to most of the reported green sorbents. The sorption kinetics data fitted well to the power function and first-order models. Remarkable CPF removal efficiency of 81% was achieved using nMSW at pH 7 in contact time period of 30 min. The thermodynamic parameters revealed the spontaneous and the exothermic nature of CPF sorption process. The functional groups of nMSW and CPF, thermodynamics and bio-sorption data suggested that H-bonding, hydrophobicity, electrostatic and π–π interactions are the main driving forces in CPF removal mechanism by nMSW. The novel nano-biosorbent can be introduced as an effective green and low cost alternative for CPF removal from contaminated wastewater." @default.
- W3137614306 created "2021-03-29" @default.
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- W3137614306 date "2021-08-01" @default.
- W3137614306 modified "2023-10-16" @default.
- W3137614306 title "Green low cost nanomaterial produced from Moringa oleifera seed waste for enhanced removal of chlorpyrifos from wastewater: Mechanism and sorption studies" @default.
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- W3137614306 doi "https://doi.org/10.1016/j.jece.2021.105376" @default.
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