| 多孔SnO2-Cu2O复合薄膜的制备及其光催化性能 |
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| 引用本文： | 徐彬,李小辉,童晓静,牛振江,冷文华,张鉴清. 多孔SnO2-Cu2O复合薄膜的制备及其光催化性能[J]. 北京科技大学学报, 2010, 32(12) |
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| 作者姓名： | 徐彬 李小辉 童晓静 牛振江 冷文华 张鉴清 |
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| 作者单位： | 1. 浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,金华,321004
2. 浙江大学化学系,杭州,310027 |
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| 基金项目： | 浙江省自然科学基金资助项目(No.Y404028) |
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| 摘 要： | 采用加热氧化多孔Sn--Cu合金电沉积层,制备得多孔SnO2--Cu2O复合薄膜.应用X射线衍射(XRD)、扫描电子显微镜(SEM)和X射线能量散射(EDS)分析了镀液中Sn2+/Cu2+值对薄膜结构、形貌和组成的影响.通过低压汞灯下光降解罗丹明B的反应测试了薄膜的光催化活性.结果表明,从0.01mol.L-1CuSO4、0.05mol.L-1SnSO4、1.5mol.L-1H2SO4、7mL.L-1甲醛和0.001%聚乙二醇辛基苯基醚(OP)的镀液中,在20℃以6.0A.cm-2的电流密度沉积得到的Sn--Cu合金,经过在空气气氛下200℃,2h和400℃,2h加热氧化后,转变为Sn/Cu值为3∶1的SnO2--Cu2O复合薄膜,显示出优异的光催化降解罗丹明B的活性,这归因于薄膜具有三维多孔的形貌和适合的Sn/Cu比.
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| 关 键 词： | 氧化物 多孔材料 薄膜 电沉积 光催化 |
Preparation and photocatalytic activity of coupled SnO2-Cu2O porous films |
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| XU Bin,LI Xiao-hui,TONG Xiao-jing,Mu Zhen-jiang,LENG Wen-hua,ZHANG Jian-qing. Preparation and photocatalytic activity of coupled SnO2-Cu2O porous films[J]. Journal of University of Science and Technology Beijing, 2010, 32(12) |
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| Authors: | XU Bin LI Xiao-hui TONG Xiao-jing Mu Zhen-jiang LENG Wen-hua ZHANG Jian-qing |
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| Affiliation: | XU Bin1),LI Xiao-hui1),TONG Xiao-jing1),NIU Zhen-jiang1),LENG Wen-hua2),ZHANG Jian-qing2)1)Zhejiang Key Laboratory for Chemistry on Solid Surfaces,Institute of Physical Chemistry,Zhejiang Normal University,Jinhua 321004,China2)Department of Chemistry,Zhejiang University,Hangzhou 310027,China |
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| Abstract: | Porous SnO2-Cu2O composite films were prepared through thermal oxidation of porous Sn-Cu alloy electrodeposits in air.The effects of the Sn2+/Cu2+ molar ratio of solutions on the morphologies,constituents and structures of coupled SnO2-Cu2O porous films were investigated by scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDS)and X-ray diffraction(XRD)analysis.And the photocatalytic activity of the films was tested by photodegradation of rhodamine B under irradiation of a low-pressure ... |
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| Keywords: | oxides porous materials thin films electrodeposition photocatalysis |
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