| 节能灯光响应Ce-Fe共掺杂纳米TiO_2的制备及其光催化性能 |
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| 引用本文： | 李桂花,王安锋,苑便琴,任悄悄. 节能灯光响应Ce-Fe共掺杂纳米TiO_2的制备及其光催化性能[J]. 硅酸盐通报, 2009, 28(6): 1182-1185 |
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| 作者姓名： | 李桂花 王安锋 苑便琴 任悄悄 |
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| 作者单位： | 廊坊师范学院化学与材料科学学院,廊坊,065000 |
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| 基金项目： | 廊坊市科学技术研究与发展指导计划项目 |
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| 摘 要： | 采用溶胶-凝胶法制备了Ce、Fe共掺杂的纳米TiO_2光催化剂.以节能灯为光源,考察了催化剂组成、催化剂加入量、反应温度等对其光催化降解亚甲基蓝性能的影响.结果表明:与不掺杂及Ce、Fe单掺杂相比,Ce-Fe共掺杂能明显提高纳米TiO_2在节能灯照射下的光催化活性.其中,Ce_(0.062)5Fe_(0.004)/TiO_2的催化效果最佳,当反应温度50 ℃,反应液pH值5.33,催化剂加入量0.313 g/L 时,4 h的降解率可达96.00%.XRD分析结果显示,催化活性较好的催化剂均为锐钛矿和金红石的混晶,晶粒尺寸在20～30 nm之间.
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| 关 键 词： | 溶胶-凝胶法 纳米二氧化钛 共掺杂 光催化 亚甲基蓝, |
Preparation of Ce-Fe Co-doped TiO_2 Nanopaticles and Their Photocatalytic Performance under Energy Saving Lamp |
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| LI Gui-hua,WANG An-feng,YUAN Bian-qin,REN Qiao-qiao. Preparation of Ce-Fe Co-doped TiO_2 Nanopaticles and Their Photocatalytic Performance under Energy Saving Lamp[J]. Bulletin of the Chinese Ceramic Society, 2009, 28(6): 1182-1185 |
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| Authors: | LI Gui-hua WANG An-feng YUAN Bian-qin REN Qiao-qiao |
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| Affiliation: | LI Gui-hua,WANG An-feng,YUAN Bian-qin,REN Qiao-qiao(Faculty of Chemistry and Material,Langfang Teacher's College,Langfang 065000,China) |
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| Abstract: | Ce-Fe co-doped TiO2 nanopaticles were prepared via Sol-gel process and their decolorization performance of methylene blue under energy saving lamp were investigated.The effects of catalyst composition,catalyst concentration and reaction temperature on their photocatalytic performance were studied.The results indicated that Ce-Fe co-doped TiO2 showed markedly higher photocatalytic activity than that of TiO2 and Ce or Fe single doped TiO2.TiO2 co-doped with 0.0625% Ce and 0.004% Fe showed the highest photocat... |
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| Keywords: | Sol-gel TiO_2 nanopaticles co-doping photocatalysis methylene blue |
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