| Ag@AgCl催化剂的制备及可见光降解三聚氰胺 |
| |
| 引用本文： | 胡学锋,张锐明,秦伟.Ag@AgCl催化剂的制备及可见光降解三聚氰胺[J].环境化学,2012,31(5):636-640. |
| |
| 作者姓名： | 胡学锋 张锐明 秦伟 |
| |
| 作者单位： | 中国科学院烟台海岸带研究所海岸带环境过程重点实验室,烟台,264003 |
| |
| 基金项目： | 国家自然科学基金项目，中科院重要方向性项目，烟台市科技攻关项目 |
| |
| 摘 要： | 在超声波辅助作用下制备了Ag@AgCl可见光催化剂,采用紫外可见分光光度计、扫描电镜(SEM)对该催化剂进行了表征,该催化剂在可见光区有较强的吸收,粒径在微米级.以三聚氰胺为模型化合物测试其可见光催化性能.研究发现,该催化剂在可见光照下,不仅可以使三聚氰胺发生脱氨基反应,而且能使其环结构破坏,但却不能催化氰脲酸降解.通过除氧实验、空穴捕获、顺磁共振等实验测试,对其可能的催化降解机理进行了探讨.
|
| 关 键 词： | Ag@AgCl 可见光降解 三聚氰胺 |
Preparation of Ag@AgCl and visible light-catalyzed degradation of melamine |
| |
| HU Xuefeng,ZHANG Ruiming,QIN Wei.Preparation of Ag@AgCl and visible light-catalyzed degradation of melamine[J].Environmental Chemistry,2012,31(5):636-640. |
| |
| Authors: | HU Xuefeng ZHANG Ruiming QIN Wei |
| |
| Institution: | (Key Laboratory of Coastal Zone Environmental Processes,CAS;Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes; Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences,Yantai,264003,China) |
| |
| Abstract: | Ag@AgCl was prepared by a supersonic assisted method.UV-Vis spectroscopy and scanning electron microscope were used to analyze the catalyst.The catalyst showed strong absorption in the visible region with diameters around 2 μm.Melamine as a model compound was used to measure the photocatalytic activity of Ag@AgCl.The results showed that this particle catalyzed not only the deamination but also the ring-open of melamine.ESR,hole capture and deoxygenation experiments were used to investigate the degradation mechanism of melamine. |
| |
| Keywords: | Ag@AgCl visible light catalyzed degradation melamine |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
