Adsorption of diazinon and fenitrothion on nanocrystalline magnesium oxides

被引：33

作者：

Armaghan, Mahsa ^{[1
]}

Amini, Mostsfa M. ^{[1
]}

机构：

[1] Shahid Beheshti Univ, GC, Dept Chem, Tehran 1983963113, Iran

来源：

ARABIAN JOURNAL OF CHEMISTRY | 2017年 / 10卷 / 01期

关键词：

Nanocrystalline; Magnesium oxide; Adsorption; Diazinon; Fenitrothion; DENSITY-FUNCTIONAL THEORY; UNIQUE SURFACE-CHEMISTRY; METAL-OXIDES; ORGANOPHOSPHORUS COMPOUNDS; CHEMICAL REAGENTS; HYDROXYL-GROUPS; ALUMINUM-OXIDE; MGO; WATER; NANOPARTICLES;

D O I：

10.1016/j.arabjc.2014.01.002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanocrystalline magnesium oxide was prepared by the sol-gel method from magnesium methoxide and characterized by Fourier transform infrared spectroscopy, thermal analysis, X-ray powder diffraction and transmission electron microscopy. Sol-gel derived nanocrystalline magnesium oxide along with a commercial nanocrystalline magnesium oxide was used as adsorbents to study the adsorption of two common, organophosphorous pesticides, diethoxy-[(2-isopropyl-6methyl- 4-pyrimidinyl) oxy]-thioxophosphorane (diazinon) and dimethoxy-(3-methyl-4-nitrophenoxy)- thioxophosphorane (fenitrothion). Adsorption of diazinon and fenitrothion on the sol-gel derived, and commercial nanocrystalline magnesium oxides was studied using UV-vis, FT-IR and 31 P NMR spectroscopies. The effect of hydroxyl groups on edge/corner and flat panel of magnesium oxide in adsorption of diazinon and fenitrothion was investigated. The results showed that the adsorption of diazinon on the sol-gel derived nanocrystalline magnesium oxide is destructive whereas on commercial one is non-destructive. Commercial nanocrystalline magnesium oxide showed higher activity in the adsorption of fenitrothion than the sol-gel derived, and adsorptions on both nanocrystalline magnesium oxides are destructive. (C) 2014 King Saud University. Production and hosting by Elsevier B. V.

引用

页码：91 / 99

页数：9

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