| 添加壳聚糖溶胶-凝胶法制备的TiO2光催化剂及其光催化性能研究 |
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| 引用本文： | 伊洪坤,卢平,李来胜,张秋云.添加壳聚糖溶胶-凝胶法制备的TiO2光催化剂及其光催化性能研究[J].环境污染治理技术与设备,2010(1):115-119. |
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| 作者姓名： | 伊洪坤 卢平 李来胜 张秋云 |
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| 作者单位： | [1]华南师范大学化学与环境学院,广州510006 [2]广东正业科技股份有限公司,东莞523270 |
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| 摘 要： | 采用添加壳聚糖（CTS）的溶胶-凝胶法制备了具有较高光催化活性的TiO2光催化剂，并用XRD、TEM、BET和IR等手段对其进行表征。结果表明，CTS的添加使TiO2衍射强度增强、分散性提高、比表面积增大从而使光催化活性提高；用所制备的催化剂光催化降解甲基橙反应60min后，其去除率由不添加CTS所制备TiO2的32％提高到48％，TOC去除率由14％提高到23％。
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| 关 键 词： | TiO2 壳聚糖 溶胶凝胶 光催化 |
Preparation of chitosan added TiO2 photocatalyst by sol-gel method and its photocatalytic activity |
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| Yi Hongkun Lu Ping Li Laisheng Zhang Qiuyun.Preparation of chitosan added TiO2 photocatalyst by sol-gel method and its photocatalytic activity[J].Techniques and Equipment for Environmental Pollution Control,2010(1):115-119. |
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| Authors: | Yi Hongkun Lu Ping Li Laisheng Zhang Qiuyun |
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| Institution: | Yi Hongkun Lu Ping Li Laisheng Zhang Qiuyun (1. School of Chemistry ＆ Environment, South China Normal University,Guangzhou 510006, China; 2. Guangdong Zhengyee Technology Co. Ltd. , Dongguan 523270,China) |
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| Abstract: | This paper investigated the process of preparing chitosan （CTS） added TiO2 photocatalyst with high photocatalytic activity by a sol-gel method, using Ti（OBu） 4 as precursor and ethanol as solvent. The catalyst was characterized by XRD, IR, TEM and BET methods. The optimum concentration of CTS added is 1wt%. The photocatalytie activity of CTS added TiO2 was improved than TiO2 alone. After 60 minutes photocatalytic degradation for methyl orange, the removal rate increased from 32% to 48% ,and the removal rate of TOC increased from 14% to 23% compared to pure TiO2. |
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| Keywords: | TiO2 ehitosan sol-gel photoeatalysis |
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