| 复合电沉积制备SnO2/TiO2薄膜及其光电催化性能 |
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| 引用本文： | 李爱昌,胡晓红,王瑞燕,王倩,郭荷芹.复合电沉积制备SnO2/TiO2薄膜及其光电催化性能[J].材料科学与工艺,2008,16(1):62-65. |
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| 作者姓名： | 李爱昌 胡晓红 王瑞燕 王倩 郭荷芹 |
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| 作者单位： | 廊坊师范学院,化学与材料科学学院,河北,廊坊,065000 |
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| 基金项目： | 廊坊师范学院重点资助研究项目 |
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| 摘 要： | 为了寻求廉价、高效和稳定的光催化剂,用复合电沉积技术在紫铜片上制备了Sn/TiO2薄膜,经300℃热氧化使之形成SnO2/TiO2复合电极.利用SEM,XRD对薄膜进行了表征,以甲基橙为模型化合物,对复合电极的光催化和光电催化性能进行了测定.研究表明:该薄膜由0.3~1μm的颗粒构成,每个颗粒又由纳米晶粒形成;电极具有多孔结构,膜中的SnO2以两种不同的晶体结构存在;在薄膜质量相等的情况下,SnO2/TiO2薄膜的光催化活性是纯TiO2粒子膜的2.87倍;外加一定偏压下,其催化性能大幅度提高.
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| 关 键 词： | SnO2/TiO2纳米膜 复合电沉积 光催化 光电催化 甲基橙 |
| 文章编号： | 1005-0299(2008)01-0062-04 |
| 修稿时间： | 2006年2月20日 |
Preparation of SnO2/TiO2 film photoelectrodes by composite electroplating and its photocatalytic activity |
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| LI Ai-chang,HU Xiao-hong,WANG Rui-yan,WANG Qian,GUO He-qin.Preparation of SnO2/TiO2 film photoelectrodes by composite electroplating and its photocatalytic activity[J].Materials Science and Technology,2008,16(1):62-65. |
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| Authors: | LI Ai-chang HU Xiao-hong WANG Rui-yan WANG Qian GUO He-qin |
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| Affiliation: | (Faculty of chemistry and Material Science,Langfang Teachers College,Langfang 065000,China) |
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| Abstract: | Sn/TiO2 thin films were prepared by simultaneous electodeposition of Sn and TiO2 on a Cu substrate from a solution in which TiO2 nanoparticles(P-25) were suspended by stirring.A SnO2/TiO2 film photoelectrode was generated by the heat treatment in air at 573 K for 2 h.The surface morphology and structure of SnO2/TiO2 thin film were characterized by using SEM and XRD,and its photocatalytic/photoelectrocatalytic properties were evaluated with methyl orange as a model compound.The results showed that the photoelectrode was a porous film composed of SnO2/TiO2 particles in the size of 0.3~1 μm.And SnO2/TiO2 particles have two kinds of nanocrystalline structure.The photocatalytic activity of SnO2/TiO2 film increased 1.87 times than that of TiO2 film,and its photocatalytic degradation rate was enhanced obviously by imposing external bias potential. |
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| Keywords: | SnO2/TiO2 nanofilm composite electroplatimg photocatalysis photoelectrocatalysis methyl orange |
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