Photocatalytic degradation of carbamate insecticides: Effect of different parameters

A. Tomašević, D. Mijin, A. Marinković, Ilija N. Cvijetić, S. Gašić
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引用次数: 2

Abstract

Photocatalytic degradation of a model compound of the carbamate insecticide carbofuran in water was studied using polychromatic light and ZnO and TiO2 catalysts. The influence of operational parameters, such as reaction time and initial carbofuran concentration, on photocatalytic degradation was studied. A pseudo-first-order kinetic model was established and an almost complete removal of 88.4 mg L-1 of carbofuran occurred within 2 h under optimized conditions. The reactions were examined by UV spectroscopy and high performance liquid chromatography (HPLC). In addition, the photocatalytic efficiencies of ZnO and TiO2 were compared under the same reaction conditions.
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氨基甲酸酯类杀虫剂的光催化降解:不同参数的影响
采用多色光和ZnO、TiO2催化剂,研究了氨基甲酸酯类杀虫剂呋喃酯模型化合物在水中的光催化降解。研究了反应时间、初始呋喃浓度等操作参数对光催化降解的影响。建立了准一级动力学模型,在优化条件下,2 h内几乎完全脱除了88.4 mg L-1的呋喃。采用紫外光谱法和高效液相色谱法对反应进行了表征。在相同的反应条件下,比较了ZnO和TiO2的光催化效率。
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审稿时长
4 weeks
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