| 超声波光催化协同降解对甲基苯磺酸水溶液的机理研究 |
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| 引用本文： | 张凌,楚红英,常志显,李德亮.超声波光催化协同降解对甲基苯磺酸水溶液的机理研究[J].环境工程学报,2011,5(4):819-824. |
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| 作者姓名： | 张凌 楚红英 常志显 李德亮 |
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| 作者单位： | 1. 河南大学化学化工学院环境与分析科学研究所,开封,475004
2. 黄河水利职业技术学院环境与化学工程系,开封,475004 |
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| 基金项目： | 河南省国际科技合作项目（0546640002）；河南省教育厅自然科学研究项目（2007610001） |
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| 摘 要： | 采用超声波与光催化联合法对模拟废水中难生物降解的对甲基苯磺酸(4-TSA)进行降解实验研究,借助紫外光谱、红外光谱、质谱、气相色谱、高效液相色谱、化学需氧量和总有机碳的检测结果对反应机理进行了初步探讨.实验结果表明:超声波和光催化之间存在着协同效应;当溶液初始质量浓度30 mg/L,光催化剂TiO2投加量为100 mg...
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| 关 键 词： | 超声波 光催化 降解 对甲基苯磺酸 机理 |
Study on mechanism of degradation 4-toluene sulfonic acid by sonophotocatalysis |
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| Zhang Ling,Chu Hongying,Chang Zhixian and Li Deliang.Study on mechanism of degradation 4-toluene sulfonic acid by sonophotocatalysis[J].Techniques and Equipment for Environmental Pollution Control,2011,5(4):819-824. |
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| Authors: | Zhang Ling Chu Hongying Chang Zhixian and Li Deliang |
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| Institution: | Institute of Environment & Analytical Sciences,School of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,China,Department of Envionment and Chemical Engineering,Yellow River Conservancy Technical Institute,Kaifeng 475004,China,Institute of Environment & Analytical Sciences,School of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,China and Institute of Environment & Analytical Sciences,School of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,China |
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| Abstract: | Degradation of bio-refractory 4-Toluene sulfonic acid (4-TSA) in simulated wastewater by sonophotocatalysis was experimentally studied. The reaction mechanism was explored primarily by ultraviolet spectroscopy, infrared spectroscopy, mass spectrum, gas chromatography, high performance liquid chromatography, chemical oxygen demand and total organic carbon analysis. Results indicated that there was synergistic effect between ultrasonic and photocatalysis on degradation of 4-TSA; the removal rate reached to 93.4% under the optimum condition that included 30 mg/L of initial 4-TSA concentration, 100 mg/L of TiO2 concentration, 80 W and 45 kHz of ultrasonic power and frequency, pH 3.0 and 120 min of reaction time. The analysis showed that the intermediate products of oxidized 4-TSA were hydroquinone, p-benzoquinone, maleic acid, glyoxylic acid and other small organic molecules, and the ultimate products were H2O, CO2 and SO2-4. |
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