| Fe、N共掺杂改性TiO2/AC复合光催化剂的制备及气相污染物降解性能 |
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| 引用本文： | 杨青山,廖永进,肖新颜.Fe、N共掺杂改性TiO2/AC复合光催化剂的制备及气相污染物降解性能[J].材料导报,2011(Z1):62-67. |
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| 作者姓名： | 杨青山 廖永进 肖新颜 |
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| 作者单位： | 广州粤能电力科技开发有限公司;广东电网公司电力科学研究院;华南理工大学化学与化工学院; |
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| 基金项目： | 广东省自然科学基金(8151064101000049) |
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| 摘 要： | 采用Sol-gel法制备了Fe、N离子共掺杂改性TiO2/AC复合光催化剂,利用SEM、XRD、UV-Vis分光光度计对其结构及性能进行了表征。通过对气相甲苯、丙酮和甲醛的光催化降解实验,系统评价了离子掺杂量、抑制剂种类、TiO2负载量、污染物起始浓度、污染物种类和催化剂循环使用次数对其性能的影响。结果表明,TiO2以颗粒状镶嵌在AC孔隙内,且主要以锐钛矿相存在,Fe、N离子共掺杂实现了催化剂的可见光响应;确定最佳催化剂制备工艺为Fe、N离子共掺杂量8%、HAc为抑制剂、TiO2负载量20%。催化剂对甲苯的降解率随起始浓度的增加而增加;催化剂对甲苯和丙酮的降解率较高（约为90%）,对甲醛的降解率较低（约为35%）;循环使用6次后,对甲苯的降解率仍高于P-25（商业纳米TiO2）。
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| 关 键 词： | 二氧化钛 活性炭 光催化活性 甲苯 |
Preparation of Iron,Nitrogen co-doped TiO_2/AC Composite Photocatalysts and their Photocatalytic Activities for Degradation of Gaseous Pollutants |
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| YANG Qingshan,LIAO Yongjin,XIAO Xinyan.Preparation of Iron,Nitrogen co-doped TiO_2/AC Composite Photocatalysts and their Photocatalytic Activities for Degradation of Gaseous Pollutants[J].Materials Review,2011(Z1):62-67. |
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| Authors: | YANG Qingshan LIAO Yongjin XIAO Xinyan |
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| Affiliation: | YANG Qingshan~1,LIAO Yongjin~2,XIAO Xinyan~3 (1 Guangzhou Yueneng Power Technology Development Co.,Ltd.,Guangzhou 510600,2 Guangdong Power Test and Research Institute,3 School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510600) |
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| Abstract: | Titanium dioxide(TiO_2)/activated carbon(AC) composite photocatalysts were synthesized based on iron(Fe) and nitrogen(N) co-doped by sol-gel method.Morphology and properties of them were studied by SEM, XRD and UV-Vis.The influences of ion co-doping content,inhibitor species,TiO_2 loading amount,initial concentrations of pollutant,pollutant species,and the reuse time of photocatalysts on photodegradation rate of toluene,acetone and formaldehyde were evaluated.The results indicate that the photocatalysts are... |
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| Keywords: | titanium dioxide activated carbon(AC) photocatalytic activity toluene |
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