| Hierarchically Ordered Macro-Mesoporous TiO2-Graphene Composite Films: Improved Mass Transfer, Reduced Charge Recombination, and Their Enhanced Photocatalytic Activities | |
| Du, Jiang1; Lai, Xiaoyong1; Yang, Nailiang1; Zhai, Jin2; Kisailus, David3; Su, Fabing1; Wang, Dan1; Jiang, Lei2; Wang, D | |
| 2011 | |
| 发表期刊 | ACS NANO
 |
| ISSN | 1936-0851 |
| 卷号 | 5期号:1页码:590-596 |
| 摘要 | Hierarchically ordered macro-mesoporous titania films have been produced through a confinement self assembly method within the regular voids of a colloidal crystal with three-dimensional periodicity. Furthermore, graphene as in excellent electron-accepting and electron transporting material has been incorporated into the hierarchically ordered macro-mesoporous titania frameworks by in situ reduction of graphene oxide added in the self assembly system. Incorporation of interconnected macropores in mesoporous films improves the mass transport through the film reduces the length of the mesopore channel, and increases the accessible surface area of the thin film, whereas the introduction of graphene effectively suppresses the charge recombination. Therefore; the significant enhancement of photocatalytic activity for degrading the methyl blue has been achieved. The apparent rate constants for macro-mesoporous titania films without and with graphene are up to 0.045 and 0.071 min(-1), respectively, almost 11 and 17 times higher than that for Pure mesoporous titania films (0.0041 min(-1)). |
| 关键词 | Hierarchical Ordered Macro-mesoporous Tio2-graphene Film Photocatalysis Mass Transport Efficient Charge Separation |
| 文章类型 | Article |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1021/nn102767d |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | TITANIA THIN-FILMS ; VISIBLE-LIGHT PHOTOCATALYST ; TIO2 ; BATTERY ; OXIDES ; PORES |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000286487300076 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ipe.ac.cn/handle/122111/5377 |
| 专题 | 多相复杂系统国家重点实验室 |
| 通讯作者 | Wang, D |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.Beijing Univ Aeronaut & Astronaut, Beijing 100191, Peoples R China 3.Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA |
| 推荐引用方式 GB/T 7714 | Du, Jiang,Lai, Xiaoyong,Yang, Nailiang,et al. Hierarchically Ordered Macro-Mesoporous TiO2-Graphene Composite Films: Improved Mass Transfer, Reduced Charge Recombination, and Their Enhanced Photocatalytic Activities[J]. ACS NANO,2011,5(1):590-596. |
| APA | Du, Jiang.,Lai, Xiaoyong.,Yang, Nailiang.,Zhai, Jin.,Kisailus, David.,...&Wang, D.(2011).Hierarchically Ordered Macro-Mesoporous TiO2-Graphene Composite Films: Improved Mass Transfer, Reduced Charge Recombination, and Their Enhanced Photocatalytic Activities.ACS NANO,5(1),590-596. |
| MLA | Du, Jiang,et al."Hierarchically Ordered Macro-Mesoporous TiO2-Graphene Composite Films: Improved Mass Transfer, Reduced Charge Recombination, and Their Enhanced Photocatalytic Activities".ACS NANO 5.1(2011):590-596. |
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| 20131108-1042-复件 nn1（4547KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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