Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Non-uniform doping outperforms uniform doping for enhancing the photocatalytic efficiency of Au-doped TiO2 nanotubes in organic dye degradation | |
Zhang, Yuyuan1; Hu, Huawen1; Chang, Menglei1; Chen, Dongchu1; Zhang, Min1; Wu, Liangpeng2; Li, Xinjun2 | |
2017-08-15 | |
发表期刊 | CERAMICS INTERNATIONAL |
卷号 | 43期号:12页码:9053-9059 |
摘要 | Uniform doping is usually recognized as an efficient method for enhancing photocatalysis of TiO2, while non-uniform doping is generally supposed to be inefficient because of the inhomogeneous dispersion of dopants. However, in this study, we present the first example of non-uniform doping (with Au)-better enhanced photocatalysis of TiO2 nanotubes, as compared to uniform doping, in terms of the photocatalytic organic dye degradation. The extent to which the non-uniform doping (achieved by liquid phase deposition (LPD)) can enhance photocatalysis is evaluated, along with a comparison with uniform doping. There exists an additional positive effect in the non-uniform doping system, that is, as generated interfaces between pure phase TiO2 and Au-doped TiO2, in contrast to the uniform doping system leading to a positive "platinum island" effect. Such double beneficial effects contribute to the highest performance in the photocatalytic organic dye degradation for the Au-non-uniformly doped TiO2 nanotubes as compared to other samples involved in this study. Both the "platinum island" and interfacial separation effects are helpful to isolate the photo-generated electrons and holes, resulting in enhanced photocatalytic activities. |
文章类型 | Article |
关键词 | Non-uniform Doping Uniform Doping Au Element Tio2 Photocatalyst Liquid Phase Deposition Photocatalytic Degradation |
WOS标题词 | Science & Technology ; Technology |
DOI | 10.1016/j.ceramint.2017.04.050 |
研究领域[WOS] | Materials Science |
关键词[WOS] | PHOTO-ASSISTED DEPOSITION ; VISIBLE-LIGHT ; ANATASE TIO2 ; FILMS ; NANOPARTICLES ; FABRICATION ; OXIDATION ; MODULATION ; ELECTRODE ; NANOROD |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | Guangdong Engineering Technique Research Center(506302679076) ; Research Platform of Universities in Foshan(2014AG10009) ; Jiangsu Provincial Key Laboratory of Biomass Energy and Materials(JSBEM201608) ; Key Laboratory of Renewable Energy (Chinese Academy of Sciences)(y207k61001) |
WOS类目 | Materials Science, Ceramics |
WOS记录号 | WOS:000402584900072 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/14132 |
专题 | 中国科学院广州能源研究所 |
作者单位 | 1.Foshan Univ, Coll Mat Sci & Energy Engn, Foshan 528000, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Yuyuan,Hu, Huawen,Chang, Menglei,et al. Non-uniform doping outperforms uniform doping for enhancing the photocatalytic efficiency of Au-doped TiO2 nanotubes in organic dye degradation[J]. CERAMICS INTERNATIONAL,2017,43(12):9053-9059. |
APA | Zhang, Yuyuan.,Hu, Huawen.,Chang, Menglei.,Chen, Dongchu.,Zhang, Min.,...&Li, Xinjun.(2017).Non-uniform doping outperforms uniform doping for enhancing the photocatalytic efficiency of Au-doped TiO2 nanotubes in organic dye degradation.CERAMICS INTERNATIONAL,43(12),9053-9059. |
MLA | Zhang, Yuyuan,et al."Non-uniform doping outperforms uniform doping for enhancing the photocatalytic efficiency of Au-doped TiO2 nanotubes in organic dye degradation".CERAMICS INTERNATIONAL 43.12(2017):9053-9059. |
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