| RuO2/TiO2复合光催化剂的制备及性能研究 |
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| 引用本文： | 姚秉华,王理明,余晓皎,杨国农,赵高扬,郑怀礼.RuO2/TiO2复合光催化剂的制备及性能研究[J].光谱学与光谱分析,2005,25(6):934-937. |
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| 作者姓名： | 姚秉华 王理明 余晓皎 杨国农 赵高扬 郑怀礼 |
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| 作者单位： | 1. 西安理工大学应用化学系,陕西,西安,710048
2. 重庆大学化学化工学院,重庆,400044 |
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| 基金项目： | 国家自然科学基金(50072018)和陕西省教育厅科学研究基金(02JK141)资助项目 |
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| 摘 要： | 采用溶胶-凝胶-浸渍法制备了RuO2/TiO2复合光催化剂, 以紫外灯为光源, 直接耐晒黑G溶液的光催化降解为模型反应, 研究了RuO2/TiO2的光催化性能. 结果表明 掺杂量ω(RuO2)为0.16%、煅烧温度500 ℃、催化剂投加量为5.00 g·L-1时, RuO2/TiO2复合光催化剂催化活性最高. 直接耐晒黑G降解反应遵从Langmuir-Hinshelwood动力学模型, 测得反应速率常数为4.94×10-3 mmol(L·min)-1和吸附常数14.2 L·mmol-1.
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| 关 键 词： | 光催化反应 光催化剂 二氧化钛 染料 直接耐晒黑G |
| 文章编号： | 1000-0593(2005)06-0934-04 |
| 修稿时间： | 2003年12月30 |
A Study on Preparation and Characteristic of RuO2/TiO2 Coupled Photocatalyst |
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| YAO bing-hua,WANG Li-ming,YU Xiao-jiao,YANG Guo-nong,ZHAO Gao-yang,ZHENG Huai-li.A Study on Preparation and Characteristic of RuO2/TiO2 Coupled Photocatalyst[J].Spectroscopy and Spectral Analysis,2005,25(6):934-937. |
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| Authors: | YAO bing-hua WANG Li-ming YU Xiao-jiao YANG Guo-nong ZHAO Gao-yang ZHENG Huai-li |
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| Institution: | Departrnent of Applied Chemistry, Xi'an University of Technology, Xi'an 710048, China. |
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| Abstract: | RuO2/TiQ2 coupled photocatalyst was prepared by sol-gel-dipping method. Being a model reaction, the photocatalytic degradation of direct fast black G was investigated in RuO2/TiO2 powder suspension irradiated by UV-lamp. The results showed that the addition of RuO2 to TiO2 greatly enhanced its photocatalytic activity, and the optimum dipped content of RuO2 was 0.16%, the optimum value of the calcinations temperature and the addition of RuO2/TiO2 powder were 500 degrees C and 5.00 g x L(-1), respectively. The photocatalytic degradation of direct fast black G was experimentally demonstrated to follow the Langmuir-Hinshelwood kinetic model, and the adsorption constant (14.22 L x mmol(-1)) and the reaction rate constant 4.94 x 10(-3) mmol(L x min)(-1)] were determined, respectively. |
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| Keywords: | Photocatalytic reaction Photocatalyst Titanium dioxide Dye Direct fast black G |
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