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Robust Hollow Spheres Consisting of Alternating Titania Nanosheets and Graphene Nanosheets with High Photocatalytic Activity for CO2 Conversion into Renewable Fuels
文献类型：期刊论文
| 作者 | Tu, Wenguang1,2; Zhou, Yong1,2,3; Liu, Qi2,4,5; Tian, Zhongping1,2; Gao, Jun1,2; Chen, Xiaoyu1,4; Zhang, Haitao6; Liu, Jianguo2,3,4; Zou, Zhigang1,2,3,4 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2012-03-21 |
| 卷号 | 22期号:6页码:1215-1221 |
| 关键词 | graphene nanosheets photocatalysis hollow spheres CO2 conversion |
| ISSN号 | 1616-301X |
| 通讯作者 | Tu, WG |
| 英文摘要 | Robust hollow spheres consisting of molecular-scale alternating titania (Ti0.91O2) nanosheets and graphene (G) nanosheets are successfully fabricated by a layer-by-layer assembly technique with polymer beads as sacrificial templates using a microwave irradiation technique to simultaneously remove the template and reduce graphene oxide into graphene. The molecular scale, 2D contact of Ti0.91O2 nanosheets and G nanosheets in the hollow spheres is distinctly different from the prevenient G-based TiO2 nanocomposites prepared by simple integration of TiO2 and G nanosheets. The nine times increase of the photocatalytic activity of G-Ti0.91O2 hollow spheres relative to commercial P25 TiO2 is confirmed with photoreduction of CO2 into renewable fuels (CO and CH4). The large enhancement in the photocatalytic activity benefits from: 1) the ultrathin nature of Ti0.91O2 nanosheets allowing charge carriers to move rapidly onto the surface to participate in the photoreduction reaction; 2) the sufficiently compact stacking of ultrathin Ti0.91O2 nanosheets with G nanosheets allowing the photogenerated electron to transfer fast from the Ti0.91O2 nanosheets to G to enhance lifetime of the charge carriers; and 3) the hollow structure potentially acting as a photon trap-well to allow the multiscattering of incident light for the enhancement of light absorption. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 关键词[WOS] | SENSITIZED SOLAR-CELLS ; GRAPHITE OXIDE ; TIO2-GRAPHENE NANOCOMPOSITES ; EFFICIENT PHOTOCATALYSTS ; TIO2 NANOPARTICLES ; NANOTUBE-ARRAYS ; HYBRID FILMS ; REDUCTION ; SHEETS ; COMPOSITE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301481000016 |
| 公开日期 | 2013-10-22 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3851]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Nanjing Univ, Sch Phys, Nanjing 210093, Jiangsu, Peoples R China 2.Nanjing Univ, ERERC, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 4.Nanjing Univ, Dept Mat Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China 5.Anhui Polytech Univ, Sch Mech & Automot Engn, Wuhu 241000, Peoples R China 6.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tu, Wenguang,Zhou, Yong,Liu, Qi,et al. Robust Hollow Spheres Consisting of Alternating Titania Nanosheets and Graphene Nanosheets with High Photocatalytic Activity for CO2 Conversion into Renewable Fuels[J]. ADVANCED FUNCTIONAL MATERIALS,2012,22(6):1215-1221. |
| APA | Tu, Wenguang.,Zhou, Yong.,Liu, Qi.,Tian, Zhongping.,Gao, Jun.,...&Zou, Zhigang.(2012).Robust Hollow Spheres Consisting of Alternating Titania Nanosheets and Graphene Nanosheets with High Photocatalytic Activity for CO2 Conversion into Renewable Fuels.ADVANCED FUNCTIONAL MATERIALS,22(6),1215-1221. |
| MLA | Tu, Wenguang,et al."Robust Hollow Spheres Consisting of Alternating Titania Nanosheets and Graphene Nanosheets with High Photocatalytic Activity for CO2 Conversion into Renewable Fuels".ADVANCED FUNCTIONAL MATERIALS 22.6(2012):1215-1221. |
入库方式： OAI收割
来源：过程工程研究所
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