TY - JOUR ID - 30197 TI - Removal of Diazinon Pesticide Using Amino-silane Modified Magnetite Nanoparticles from Contaminated Water JO - International Journal of Nanoscience and Nanotechnology JA - IJNN LA - en SN - 1735-7004 AU - Naeimi Bagheini, A. AU - Saeidi, M. AU - Boroomand, N. AD - Department of Chemistry, Faculty of science, University of Jiroft, Jiroft, Iran. AD - Department of Chemistry, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran. AD - Department of Chemistry, Faculty of Agriculture, University of Jiroft, Jiroft, Iran. Y1 - 2018 PY - 2018 VL - 14 IS - 1 SP - 19 EP - 32 KW - magnetic KW - Adsorption KW - Spectrophotometry KW - Pesticides KW - water DO - N2 -    A magnetically recoverable adsorbent has been prepared by silica-coated magnetic nanoparticles through an amine functionality (ASMNPs). The ASMNPs were characterized by XRD, TEM, SEM, and FT-IR spectroscopy. It was used as an efficient and economical adsorbent for removing O, O-Diethyl O-[4-methyl-6-(propan-2-yl) pyrimidin-2-yl] phosphorothioate (diazinon) from contaminated water through batch experiments. The results were shown that 84% of diazinon was removed after 30 min. The experimental data of the adsorption kinetics were well described by Pseudo-second-order kinetic model (R2>0.99), and Equilibrium adsorption data could be better fitted with the Freundlich isotherm (R2>0.99). The standard free energy change (ΔG°) and standard enthalpy change (ΔH°) were indicated that this system is a spontaneous and exothermic process. UR - https://www.ijnnonline.net/article_30197.html L1 - https://www.ijnnonline.net/article_30197_8211d3c7b138bbb5202cc8177eff1cb3.pdf ER -