含 Al2O3 和 MgO 纳米颗粒的活性炭纳米纤维对二嗪农农药的破坏性吸附。
Destructive adsorption of Diazinon pesticide by activated carbon nanofibers containing Al2O3 and MgO nanoparticles.
机构信息
Department of Textile Engineering, Center of Excellence in Applied Nanotechnology, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
出版信息
Bull Environ Contam Toxicol. 2013 Oct;91(4):475-80. doi: 10.1007/s00128-013-1064-x. Epub 2013 Aug 4.
We report the destructive adsorption of Diazinon pesticide by porous webs of activated carbon nanofibers containing Al2O3 and MgO nanoparticles. The results show that, the presence of Al2O3 and MgO nanoparticles in the activated carbon nanofibers increases the amount of destructively adsorbed Diazinon pesticide by activated carbon nanofibers. Moreover, type, amount, and specific surface area of metal oxide nanoparticles affect the adsorption rate as well as the total destructively adsorbed Diazinon. Liquid chromatography proved the degradation of Diazinon by chemical reaction with Al2O3 and MgO nanoparticles. Liquid chromatography-mass spectrometry showed that the main product of reaction between Diazinon and the metal oxides is 2-isopropyl-6-methyl-4-pyrimidinol with less toxicity than Diazinon.
我们报告了含有 Al2O3 和 MgO 纳米粒子的活性炭纳米纤维对二嗪农农药的破坏性吸附。结果表明，活性炭纳米纤维中 Al2O3 和 MgO 纳米粒子的存在增加了被活性炭纳米纤维破坏性吸附的二嗪农农药的量。此外，金属氧化物纳米粒子的类型、数量和比表面积都影响吸附速率以及总破坏性吸附的二嗪农。液相色谱证明了二嗪农与 Al2O3 和 MgO 纳米粒子的化学反应导致其降解。液质联用表明，二嗪农与金属氧化物反应的主要产物是 2-异丙基-6-甲基-4-嘧啶醇，其毒性比二嗪农低。
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