| 新型规整吸附/光催化偶联催化剂性能研究 |
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| 引用本文： | 魏永红,张前程,简丽,刘聚明,井玉龙.新型规整吸附/光催化偶联催化剂性能研究[J].环境科学与技术,2009,32(7). |
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| 作者姓名： | 魏永红 张前程 简丽 刘聚明 井玉龙 |
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| 作者单位： | 内蒙古自治区工业催化重点实验室,内蒙古工业大学化工学院,内蒙古,呼和浩特,010051 |
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| 基金项目： | 国家自然科学基金，内蒙古教育厅重点项目，内蒙古人才开发基金 |
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| 摘 要： | 在预先成形的金属网上制备规整炭化物载体,载体经TiO2负载、烧结后制成新型规整型吸附/光催化偶联催化剂。以室内空气典型污染物苯为模拟降解对象,研究了该催化剂的光催化活性及活性影响因素。此外,还研究了载体的吸附性、气相的湿度及流速对负载催化剂反应性能的影响。实验结果表明:载体的吸附性对催化剂的反应性能有影响,在苯的初始浓度80mg/m3、光照2h的相同条件下,在两个不同吸附性载体的负载催化剂上,苯的净降解率分别为51.1%和33.56%;气速对催化剂反应性能的影响体现在传质阻力和停留时间上,反应过程存在一个最佳气速;气相的湿度对催化剂的反应性能影响不大,在苯初始浓度300mg/m3、光照2h条件下,气相的相对湿度由33%增至75%,苯的净降解率变化不超过5%。
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| 关 键 词： | 气相光催化 规整光催化剂 吸附性能 |
Photocatalytic Properties of Novel Regular Coupling Photocatalyst |
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| WEI Yong-hong,ZHANG Qian-cheng,JIAN Li,LIU Ju-ming,JING Yu-long.Photocatalytic Properties of Novel Regular Coupling Photocatalyst[J].Environmental Science and Technology,2009,32(7). |
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| Authors: | WEI Yong-hong ZHANG Qian-cheng JIAN Li LIU Ju-ming JING Yu-long |
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| Institution: | Key Laboratory of Industrial Catalysis of Inner Mongolia Autonomous Region;School of Chemical Engineering;Inner Mongolia University of Technology;Huhhot 010051;China |
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| Abstract: | A novel regular coupling photocatalyst was prepared by loading TiO2 on a regular carbide support shaped in advance.Activities of photocatalytic degradation of benzene in gas phase were evaluated,and effects of support adsorptivity,gas phase humidity and flow rate on supported catalyst properties were also studied.Experimental results showed that the support adsorption can affect catalyst reactivity.After irradiating for 2h under the condition of initial benzene concentration 80mg/m3,net degradation rate of ... |
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| Keywords: | gas phase photocatalysis regular photocatalyst adsorptivity |
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