Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
| Dramatically enhanced photocatalytic properties of Ag-modified graphene-ZnO quasi-shell-core heterojunction composite material | |
| Bu, Yuyu1; Chen, Zhuoyuan1; Li, Weibing2; Chen, ZY | |
| 2013 | |
| 发表期刊 | RSC ADVANCES
 |
| ISSN | 2046-2069 |
| 卷号 | 3期号:46页码:24118-24125 |
| 文章类型 | Article |
| 摘要 | Preparation of semiconductor heterojunction composites with special nanostructure is an effective way to enhance the photoelectric conversion efficiency of photocatalysts. In this work, the graphene-ZnO composite with quasi-shell-core structure was successfully prepared using a one-step wet chemical method. Silver nanoparticles are loaded onto the graphene-ZnO quasi-shell-core composite by photo-assisted reduction. Ag modification significantly improved the photocatalytic rhodamine B degradation capability of the graphene-ZnO quasi-shell-core composite and all of the rhodamine B dye was degraded by it only after 10 min of white light illumination. The graphene-ZnO composite with quasi-shell-core structure could effectively improve the separation efficiency of the electrons and holes photoinduced by the ZnO. Ag modification could accelerate the reduction processes of the photogenerated electrons and avoid the accumulation of electrons on graphene, resulting in the promotion of the photocatalytic performance of this composite.; Preparation of semiconductor heterojunction composites with special nanostructure is an effective way to enhance the photoelectric conversion efficiency of photocatalysts. In this work, the graphene-ZnO composite with quasi-shell-core structure was successfully prepared using a one-step wet chemical method. Silver nanoparticles are loaded onto the graphene-ZnO quasi-shell-core composite by photo-assisted reduction. Ag modification significantly improved the photocatalytic rhodamine B degradation capability of the graphene-ZnO quasi-shell-core composite and all of the rhodamine B dye was degraded by it only after 10 min of white light illumination. The graphene-ZnO composite with quasi-shell-core structure could effectively improve the separation efficiency of the electrons and holes photoinduced by the ZnO. Ag modification could accelerate the reduction processes of the photogenerated electrons and avoid the accumulation of electrons on graphene, resulting in the promotion of the photocatalytic performance of this composite. |
| 学科领域 | Chemistry |
| DOI | 10.1039/c3ra44047h |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| WOS记录号 | WOS:000326745100038 |
| WOS关键词 | VISIBLE-LIGHT IRRADIATION ; SENSITIZED SOLAR-CELLS ; TIO2 NANOTUBE ARRAYS ; HYDROGEN GENERATION ; PHOTOELECTROCATALYTIC ACTIVITY ; HIGHLY EFFICIENT ; NANOWIRE ARRAYS ; AT-AGCL ; WATER ; DEGRADATION |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/16361 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 |
| 通讯作者 | Chen, ZY |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Univ Sci & Technol, Sch Environm & Safety Engn, Qingdao 266042, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Bu, Yuyu,Chen, Zhuoyuan,Li, Weibing,et al. Dramatically enhanced photocatalytic properties of Ag-modified graphene-ZnO quasi-shell-core heterojunction composite material[J]. RSC ADVANCES,2013,3(46):24118-24125. |
| APA | Bu, Yuyu,Chen, Zhuoyuan,Li, Weibing,&Chen, ZY.(2013).Dramatically enhanced photocatalytic properties of Ag-modified graphene-ZnO quasi-shell-core heterojunction composite material.RSC ADVANCES,3(46),24118-24125. |
| MLA | Bu, Yuyu,et al."Dramatically enhanced photocatalytic properties of Ag-modified graphene-ZnO quasi-shell-core heterojunction composite material".RSC ADVANCES 3.46(2013):24118-24125. |
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