| 活性艳红X-3B微波辅助光催化脱色的研究 |
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| 引用本文： | 杨鹏,艾智慧,陆晓华.活性艳红X-3B微波辅助光催化脱色的研究[J].环境科学与技术,2004,27(Z1):1-3. |
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| 作者姓名： | 杨鹏 艾智慧 陆晓华 |
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| 作者单位： | 华中科技大学环境科学研究所,武汉,430074 |
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| 基金项目： | 国家环保863课题资助(2002AA601300) |
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| 摘 要： | 研究了微波辅助光催化氧化(MW/UV/TiO2)处理活性艳红(X 3B)模拟废水。结果表明:400mg/LX 3B在反应150min时的脱色率由UV/TiO2体系的7.07%、MW体系的13.52%提高到了MW/UV/TiO2体系的56.35%。脱色反应速率随初始浓度(CX 3B)的增大而减慢;在强酸性介质中,脱色率更高;光照度(E)越强,越有利于X 3B脱色反应;改变催化剂投加量对X 3B脱色影响不大;H2O2浓度增加,X 3B脱色率升高;在以上条件下,X 3B的脱色反应均符合一级反应动力学方程,脱色反应中同时存在自由基反应与直接光解反应。
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| 关 键 词： | 微波 光催化氧化 X-3B |
| 文章编号： | 1003-6504(2004)增-0001-03 |
| 修稿时间： | 2004年2月11日 |
Effect of Microwave Assisted UV Electrodeless Discharge Lamp Photocatalysis on Decolorization of Active Red X-3B |
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| YANG Peng,AI Zhi-hui,LU Xiao-hua.Effect of Microwave Assisted UV Electrodeless Discharge Lamp Photocatalysis on Decolorization of Active Red X-3B[J].Environmental Science and Technology,2004,27(Z1):1-3. |
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| Authors: | YANG Peng AI Zhi-hui LU Xiao-hua |
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| Abstract: | A microwave assisted UV system (MW/UV) was used for removal of Active Brilliant Red X-3B simulated wastewater. Results showed that the removal rate in MW/UV/TiO_2 system was higher than those in UV/TiO_2 system and MW system within 150min, which were 56.35% and 7.07%, 13.52% respectively. The removal rate was increased with light intensity or concentration of H_2O_2, or in the strong acid media. The reaction rate was decreased with increasing the initial X-3B concentration. The dosages of TiO_2 had little effect on removal rate. Kinetics analysis indicated that the degradation of X-3B could be approximate as first-order kinetics. |
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| Keywords: | microwave assisted photocatalysis Active Brilliant Red X-3B |
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