| 李越湘,徐玉欣,彭绍琴.空心玻璃微球负载TiO2光催化回收银[J].分子催化,2003,(5):376-379 |
| 空心玻璃微球负载TiO2光催化回收银 |
| Immobilization of TiO2 on Hollow Glass Microbeads and Photocatalytic Recovery of Silver |
| 修订日期：2003-02-10 |
| DOI： |
| 中文关键词: 光催化 TiO2 负载化 空心玻璃微球 银 超声波 |
| 英文关键词:Photocatalysis,Immobilization of TiO_2,Hollow Glass Microbead,Silver,Ultrasonic |
| 基金项目:江西省自然科学基金，南昌大学校科研和教改项目，0120007，，， |
| 李越湘 徐玉欣 彭绍琴 |
| 南昌大学,化学与材料学院化学系,江西,南昌,330047 |
| 摘要点击次数: 979 |
| 全文下载次数: 10 |
| 中文摘要: |
| 以钛酸四丁酯的溶胶为前驱体，通过浸渍法制备漂浮型光催化剂．它的光催化活性比P25高，且易于分离回收．沉积在催化剂上的金属银可通过超声震荡有效回收，该操作简单，具有实际应用前景．循环使用3次的光催化剂的催化活性未显著降低；但第4次由于催化剂负载TiO2损失量大，活性明显降低．讨论了反应机理． |
| 英文摘要: |
| The floating photocatalyst TiO\-2 on glass microbeads was prepared by impregnating the beads with the sol from precursor tetra\|n\|butyl titanate. It has higher activity than P25 TiO\-2 and can be separated easily. Silver is efficiently recovered from the catalyst by ultrasonic, which is a convenient and promising method for application. The activity does not decrease markedly after the catalyst was recycled for three times; but it decrease quickly for the fourth time because loss of loaded TiO\-2 on the beads is too much. The reaction mechanism was discussed. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
