| Bi2S3/BiOCl复合光催化剂的水热合成及其高活性 |
| |
| 引用本文： | 李慧泉,朱良俊,孙倩,王高,苗慧,崔玉民,郏青峰.Bi2S3/BiOCl复合光催化剂的水热合成及其高活性[J].发光学报,2015,36(2):176-185. |
| |
| 作者姓名： | 李慧泉 朱良俊 孙倩 王高 苗慧 崔玉民 郏青峰 |
| |
| 作者单位： | 1. 阜阳师范学院 化学与材料工程学院, 安徽 阜阳 236037;
2. 安徽环境污染物降解与监测省级实验室, 安徽 阜阳 236037 |
| |
| 基金项目： | 国家自然科学基金(21201037);安徽省高校自然科学基金(kj2014a191);安徽省自然科学基金(1408085mb35);安徽省高校青年人才基金(2013sqrl058zd);功能性分子固体省部共建教育部重点实验室项目(14010);阜阳师范学院和安徽环境污染物降解与监测省级实验室项目(fsb201401003,2014kjfh01)资助 |
| |
| 摘 要： | 采用一种简便的水热法在433 K的温度下成功合成了具有不同Bi2S3质量分数的Bi2S3/BiOCl复合光催化剂,利用各种技术对其进行了表征.在紫外光照射下,以甲基橙水溶液的光催化降解为模型反应,评价了Bi2S3/BiOCl复合光催化剂的活性.研究结果表明:与纯Bi2S3和纯BiOCl相比,Bi2S3/BiOCl样品明显具有更高的光催化性能,尤其当Bi2S3在Bi2S3/BiOCl中的质量分数为26.5%时,Bi2S3/BiOCl复合催化剂的光催化活性与商业P25(TiO2)的活性非常接近,而这种商业P25在紫外光照射下是公认的高效光催化剂.这种明显提高的光催化活性主要归功于光生电子和空穴在Bi2S3和BiOCl形成异质结界面上的有效转移,降低了电子-空穴对的复合.
|
| 关 键 词： | 水热法 Bi2S3/BiOCl 复合光催化剂 甲基橙 |
| 收稿时间： | 2014-11-03 |
Hydrothermal Synthesis and High Activity of Bi2 S3/BiOCl Composite Photocatalysts |
| |
| LI Hui-quan;ZHU Liang-jun;SUN Qian;WANG Gao;MIAO Hui;CUI Yu-min;JIA Qing-feng.Hydrothermal Synthesis and High Activity of Bi2 S3/BiOCl Composite Photocatalysts[J].Chinese Journal of Luminescence,2015,36(2):176-185. |
| |
| Authors: | LI Hui-quan;ZHU Liang-jun;SUN Qian;WANG Gao;MIAO Hui;CUI Yu-min;JIA Qing-feng |
| |
| Institution: | 1. College of Chemistry and Materials Engineering, Fuyang Normal College, Fuyang 236037, China;
2. Anhui Provincial Key Laboratory for Degradation and Monitoring of Pollution of The Environment, Fuyang 236037, China |
| |
| Abstract: | Bi2S3/BiOCl composite photocatalysts with various mass fractions of Bi2S3 were successfully synthesized by a facile hydrothermal process at 433 K, characterized by various techniques, and evaluated by the photo-degradation of methyl orange (MO) in an aqueous solution under the irradiation of ultraviolet (UV) light. The results showed that the photocatalytic activity of Bi2S3/BiOCl catalysts was greatly enhanced, compared with that of pure Bi2S3 and BiOCl. Especially, the photocatalytic activity of the 26.5%Bi2S3/BiOCl sample is very close to that of commercial Degussa P-25 (TiO2), which has been generally recognized as an efficient photocatalyst under UV light irradiation. The remarkably enhanced photocatalytic activity could be mainly attributed to the effective transfer of the photo-generated electrons and holes at the heterojunction interface of Bi2S3 and BiOCl, which reduced the recombination of electron-hole pairs. |
| |
| Keywords: | hydrothermal method Bi2S3/BiOCl composite photocatalysts methyl orange |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《发光学报》浏览原始摘要信息 |
| 点击此处可从《发光学报》下载免费的PDF全文 |
|
