| TiO2/AC光催化剂的制备及苯酚光催化降解性能研究 |
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| 引用本文： | 张婷婷,解强,姜勇,姚鑫,刘晓琳. TiO2/AC光催化剂的制备及苯酚光催化降解性能研究[J]. 水处理技术, 2011, 37(2) |
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| 作者姓名： | 张婷婷 解强 姜勇 姚鑫 刘晓琳 |
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| 作者单位： | 中国矿业大学(北京)化学与环境工程学院,北京,100083 |
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| 基金项目： | 中央高校基本科研业务费资助项目(2009KH10); 国家高技术研究发展计划(863)资助(2008AA05Z308) |
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| 摘 要： | 以典型煤基活性炭为载体、椰壳活性炭为对比,采用溶胶-凝胶法制备了活性炭负载的TiO2光催化剂(TiO2/AC),应用X射线衍射、扫描电镜、紫外-可见漫反射光谱和低温N2吸附等对复合光催化剂的晶相组成、表面形貌、孔结构等进行了表征,选取苯酚为模型化合物考察了复合光催化剂的光催化降解能力,并研究了活性炭种类及颗粒形貌对复合光催化剂活性的影响。结果表明,m(TiO2):m(AC)相同的条件下,TiO2在煤基活性炭上的负载率小于椰壳活性炭;其中,比表面积适中,大、中孔比例高的褐煤基活性炭更适合于作为光催化剂TiO2的载体;煤基复合光催化剂对于苯酚光催化降解效果优于椰壳基复合催化剂,对苯酚的降解效率优于等量的P25,达80%以上。
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| 关 键 词： | TiO2 活性炭 光催化 苯酚 |
PREPARATION AND PHENOL PHOTODEGRADATION PERFORMANCES OF TIO2/AC TIVATED CARBON PHOTOCATALYST |
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| Zhang Tingting,Xie Qiang,Jiang Yong,Yao Xin,Liu Xiaolin. PREPARATION AND PHENOL PHOTODEGRADATION PERFORMANCES OF TIO2/AC TIVATED CARBON PHOTOCATALYST[J]. Technology of Water Treatment, 2011, 37(2) |
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| Authors: | Zhang Tingting Xie Qiang Jiang Yong Yao Xin Liu Xiaolin |
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| Affiliation: | Zhang Tingting,Xie Qiang,Jiang Yong,Yao Xin,Liu Xiaolin(School of Chemical and Environmental Engineering,China University Mining and Technology(Beijing),Beijing 100083,China) |
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| Abstract: | A series TiO2/AC photocatalysts were prepared by sol-gel method with typical coal-based activated carbons and cocoanut-based activated carbon as the catalyst supports.Then these photocatalysts were characterized by XRD,SEM,UV-vis and low temperature nitrogen sorption/desorption in the aspects of crystal structure,surface morphology and pore size distribution.Meanwhile,phenol was used as model compound to evaluate the photodegradation performance of catalysts.Besides,the effect of nature activated carbons an... |
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| Keywords: | titanium dioxide activated carbon photocatalyst phenol |
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