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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ionic‐Liquid‐Assisted Hydrothermal Synthesis of Ag/AgBr for Photodegradation of Imidacloprid under Visible Light
Ag/AgBr photocatalysts are prepared by a ionic‐liquid‐assisted hydrothermal method. The as‐prepared photocatalysts are characterized by scanning electron microscopy, X‐ray powder diffraction, X‐ray photoelectron spectroscopy, Brunauer–Emmett–Teller measurement, and diffuse reflectance spectroscopy. Ag/AgBr exhibits significant photocatalytic activity toward degradation of imidacloprid under visible light. After 9 h, the conversion percentage of imidacloprid reaches 90%. Besides, the cycle performances suggest a good stability of the catalyst. The photocatalytic kinetics indicate that the degradation processes follow pseudo‐first‐order kinetics. According to the fact that electron holes •OH and •O2− greatly promote the photodegradation process, the degradation mechanism is proposed.
Ionic‐Liquid‐Assisted Hydrothermal Synthesis of Ag/AgBr for Photodegradation of Imidacloprid under Visible Light
Ag/AgBr photocatalysts are prepared by a ionic‐liquid‐assisted hydrothermal method. The as‐prepared photocatalysts are characterized by scanning electron microscopy, X‐ray powder diffraction, X‐ray photoelectron spectroscopy, Brunauer–Emmett–Teller measurement, and diffuse reflectance spectroscopy. Ag/AgBr exhibits significant photocatalytic activity toward degradation of imidacloprid under visible light. After 9 h, the conversion percentage of imidacloprid reaches 90%. Besides, the cycle performances suggest a good stability of the catalyst. The photocatalytic kinetics indicate that the degradation processes follow pseudo‐first‐order kinetics. According to the fact that electron holes •OH and •O2− greatly promote the photodegradation process, the degradation mechanism is proposed.
Ionic‐Liquid‐Assisted Hydrothermal Synthesis of Ag/AgBr for Photodegradation of Imidacloprid under Visible Light
Guo, Dandan (Autor:in) / Zhu, Xiaoqing (Autor:in) / Chen, Sheyun (Autor:in) / Wang, Cenling (Autor:in) / Pi, Mingli (Autor:in) / Chen, Xiaoxia (Autor:in) / Shi, Yuqing (Autor:in) / Dai, Jingtao (Autor:in)
01.05.2019
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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