| HLaNb2O7/(Pt,TiO2)的制备和光催化性能研究 |
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| 引用本文： | 程应汉,吴季怀,徐纯芳,李涛海.HLaNb2O7/(Pt,TiO2)的制备和光催化性能研究[J].化工生产与技术,2004,11(2):10-12. |
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| 作者姓名： | 程应汉 吴季怀 徐纯芳 李涛海 |
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| 作者单位： | 华侨大学材料科学与工程学院,福建泉州,362011 |
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| 基金项目： | 国家自然科学基金资助项目(NO.50082003，NO.50372022)，福建省国际合作项目(NO.20011006) |
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| 摘 要： | 用固相合成法合成出KLaNb2O7，酸化得到HLaNb2O7；通过正己胺层间膨胀，氯铂酸铵、TiO2层间插入和紫外光分解等反应，合成出一种新的层状光催化纳米复合材料HLaNb2O7／(Pt，TiO2).采用XRD、DRS对所制备的材料进行了表征。以甲基橙为目标降解物，考察了所制备的材料的光催化性能，结果表明所制备的HLaNb2O7／(Pt，TiO2)纳米复合材料对甲基橙具有较高的光降解效率并且其光催化活性稳定、持久。
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| 关 键 词： | 光催化性能 HLaNb2O7／（Pt，TiO2） 纳米复合材料 甲基橙 降解物 固相合成法 半导体 |
| 修稿时间： | 2003年11月7日 |
Research on Preparation and Photocatalytic Properties of HLaNb2O7/(Pt,TiO2) |
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| Cheng Yinghan,Wu Jihuai,Xu Chunfang,Li Taohai.Research on Preparation and Photocatalytic Properties of HLaNb2O7/(Pt,TiO2)[J].Chemical Production and Technology,2004,11(2):10-12. |
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| Authors: | Cheng Yinghan Wu Jihuai Xu Chunfang Li Taohai |
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| Abstract: | HLaNb2O7 was prepared by calcining stoichiometric mixture of K2CO3,Nb2O5,La2O3,followed by ion exchange reaction with HCl.HLaNb2O7/(Pt,TiO2) layered nanocomposite photocatalyst was synthesized by successive intercalation reactions of HLaNb2O7 with (NH4)2PtCl6 aqueous solution, n-C6H13NH2/ethanol mixed solution and acidic TiO2 colloid solution followed by UV light irradiation. The samples were characterized by using diffuse reflectance absorption spectrum and X-Ray diffraction etc. The photocatalytic activities were investigated by photodegrading the methyl orange, the result indicates that HLaNb2O7/(Pt,TiO2) layered nanocomposite photocatalyst has not only excellent photocatalytic activities, but its photocatalytic activities are stable and persisent. |
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| Keywords: | layered nanocomposites intercalation reactions photocatalysis |
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