KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| A defective g-C3N4/RGO/TiO2 composite from hydrogen treatment for enhanced visible-light photocatalytic H-2 production | |
| Wang, J; Sun, YC; Fu, LJ; Sun, Z; Ou, M; Zhao, SL; Chen, YH; Yu, FJ; Wu, YP | |
| 2020-11-21 | |
| Source Publication | NANOSCALE
 |
| ISSN | 2040-3364 |
| Issue | 43Pages:22030 |
| Subtype | Article |
| Abstract | Photocatalytic H-2 evolution is a clean technology to alleviate energy and environmental issues. The limited light absorption and the separation efficiency of photogenerated charge carriers are the major hurdles constraining the application of numerous photocatalysts. Herein, we report a simple and effective strategy, a multistep heat-treatment method, to synthesise a defective g-C3N4/RGO/TiO2 composite to increase its rate of activity for H-2 production. The defects, nitrogen and oxygen vacancies, are simultaneously introduced on the surface of the g-C3N4/RGO/TiO2 composite. The vacancy defects essentially endow g-C3N4/RGO/TiO2 with a boosted photocatalytic H-2 evolution rate (4760 mu mol h(-1) g(-1)) under visible-light irradiation, which is higher than that of the most of g-C3N4/TiO2 composites. This is attributed to the improved visible-light absorption as well as the separation and transfer rate of photogenerated charge carriers arising from vacancy defects. This study may provide an avenue for preparing defective photocatalysts for efficient H-2 evolution. |
| DOI | 10.1039/d0nr05141a |
| WOS Keyword | CHARGE SEPARATION ; GRAPHENE OXIDE ; G-C3N4 ; EVOLUTION ; CONSTRUCTION ; NANOSHEETS ; HYBRID ; WATER |
| Language | 英语 |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sic.ac.cn/handle/331005/27615 |
| Collection | 中国科学院上海硅酸盐研究所 |
| Recommended Citation GB/T 7714 | Wang, J,Sun, YC,Fu, LJ,et al. A defective g-C3N4/RGO/TiO2 composite from hydrogen treatment for enhanced visible-light photocatalytic H-2 production[J]. NANOSCALE,2020(43):22030. |
| APA | Wang, J.,Sun, YC.,Fu, LJ.,Sun, Z.,Ou, M.,...&Wu, YP.(2020).A defective g-C3N4/RGO/TiO2 composite from hydrogen treatment for enhanced visible-light photocatalytic H-2 production.NANOSCALE(43),22030. |
| MLA | Wang, J,et al."A defective g-C3N4/RGO/TiO2 composite from hydrogen treatment for enhanced visible-light photocatalytic H-2 production".NANOSCALE .43(2020):22030. |
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