| Ag/TiO2光催化膜降解高浓度对氯苯酚溶液的研究 |
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| 引用本文： | 崔鹏,徐南平,时钧. Ag/TiO2光催化膜降解高浓度对氯苯酚溶液的研究[J]. 太阳能学报, 2003, 24(1): 64-67 |
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| 作者姓名： | 崔鹏 徐南平 时钧 |
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| 作者单位： | 1. 合肥工业大学化工学院,合肥,230009
2. 南京工业大学膜科学技术研究所,江苏省化学工程与技术重点实验室,南京,210009 |
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| 基金项目： | 江苏省化学工程与技术重点实验室开放性研究项目(KJS0 10 95 )，安徽省自然科学基金项目 ( 0 3 0 44 3 0 2 ) |
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| 摘 要： | 依据光催化还原原理 ,在活性碳负载的TiO2 纳米粒子膜表面上制备出载银光催化剂 ,采用该催化剂对初始COD≥ 6 0 0mg·L-1的高浓度 4 氯苯酚水溶液进行降解研究 ,分别考察了光催化剂的用量、反应液初始浓度和初始 pH值等对降解性能的影响 ,并与DegussaP2 5微粉光催化剂等进行比较 ,得出负载型Ag/TiO2 光催化膜具有光催化活性高、固液易分离的特点。
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| 关 键 词： | 光催化 催化剂 对氯苯酚 降解 |
| 文章编号： | 0254-0096(2003)01-0064-04 |
| 修稿时间： | 2002-01-19 |
PHOTOCATALYTIC ACTIVITY ON p-CHLOROPHENOL OF Ag/TiO2 MEMBRANE PHOTOCATALYST IMMOBILIZED ON ACTIVATED CARBON PREPARED BY THE PHOTO-REDUCTION METHOD |
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| Cui Peng ,Xu Nanping ,Shi Jun. PHOTOCATALYTIC ACTIVITY ON p-CHLOROPHENOL OF Ag/TiO2 MEMBRANE PHOTOCATALYST IMMOBILIZED ON ACTIVATED CARBON PREPARED BY THE PHOTO-REDUCTION METHOD[J]. Acta Energiae Solaris Sinica, 2003, 24(1): 64-67 |
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| Authors: | Cui Peng Xu Nanping Shi Jun |
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| Affiliation: | Cui Peng 1,Xu Nanping 2,Shi Jun 2 |
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| Abstract: | The preparation and characterization of Ag/TiO 2 membrane photocatalyst immobilized on activated carbon particle was studied. EDS analysis indicated that Ag deposited on the surface of TiO 2 membrane. The valence state of Ag and the component of the Ag/TiO 2 membrane were investigated by XPS. The photocatalytic degradation experiment was carried out in the p chlorophenol solution with initial concentration higher than 600mg/L. Effects of the dosage of photocatalyst, the initial concentration and pH value of the p chlorophenol solution on the degradation rate was discussed. Results showed that the Ag/TiO 2 membrane photocatalyst has higher degradation rate under the condition of the photocatalyst dosage 0.2 wt%, pH=4.0 and different initial concentrations. In comparison with degussa P25 TiO 2 micro powder photocatalyst, the Ag/TiO 2 membrane has higher photocatalytic activity. |
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| Keywords: | photocatalysis photocatalyst p chlorophenol degradation |
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