Significantly enhanced photocatalytic hydrogen production performance of g-C_3N_4/CNTs/CdZnS with carbon nanotubes as the electron mediators
文献类型：CNKI期刊论文
| 作者 | Chang Feng ; Zhuoyuan Chen; Jiangping Jing; Mengmeng Sun; Jing Tian; Guiying Lu; Li Ma; Xiangbo Li; Jian Hou
|
| 发表日期 | 2021-07-30 |
| 出处 | Journal of Materials Science & Technology
 |
| 关键词 | Photocatalytic hydrogen production Z-scheme photocatalyst Electron mediator g-C_3N_4/CNTs/CdZnS Carbon nanotubes |
| 英文摘要 | The electron mediator can effectively improve the performance of the direct Z-scheme heterojunction photocatalysts. However, it is still a great challenge to select cheap and efficient electron mediators and to design them into the Z-scheme photocatalytic system. In the present paper, the g-C_3N_4/CNTs/CdZnS Z-scheme photocatalyst was prepared using carbon nanotubes(CNTs) as the electron mediators, and its photocatalytic hydrogen production performance was studied. Compared with single-phase g-C_3N_4,CdZnS and biphasic g-C_3N_4/CdZnS photocatalysts, the photocatalytic hydrogen production performance of the prepared g-C_3N_4/CNTs/CdZnS has been significantly enhanced. Meanwhile, g-C_3N_4/CNTs/CdZnS possesses very good photocatalytic hydrogen production stability. The enhanced photocatalytic hydrogen production performance of g-C_3N_4/CNTs/CdZnS is attributed to the fact that CNTs, as an electron mediator,can accelerate the recombination of the photogenerated holes in the valence band of g-C_3N_4 and the photogenerated electrons in the conduction band of CdZnS, which makes the g-C_3N_4/CNTs/CdZnS Zscheme photocatalyst be easier to escape the photogenerated electrons, increases the concentration of the photogenerated carriers and prolongs the lifetime of the photogenerated carriers. This work provides a theoretical basis for the further development and design of CNTs as the intermediate electron mediator of the Z-scheme heterojunction photocatalyst. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | financially supported by National Natural Science Foundation of China (Grant Nos. 41976036, 41676069, 41906034) ; Key Research and Development Program of Shandong Province (Grant Nos. 2019GHY112066, 2019GHY112085) ; the Research Fund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute (LSMRI) under the contract No. KF190408 |
| 卷 | v.80期:21页:77-85 |
| 语种 | 英文; |
| 分类号 | TQ116.2;O643.36;O644.1 |
| ISSN号 | 1005-0302 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187706]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.StateKeyLaboratoryforMarineCorrosionandProtection,LuoyangShipMaterialResearchInstituteLSMRI 2.KeyLaboratoryofMarineEnvironmentalCorrosionandBio-fouling,InstituteofOceanology,ChineseAcademyofSciences 3.StateKeyLaboratoryforMarineCorrosionandProtection,LuoyangShipMaterialResearchInstitute(LSMRI) 4.CenterforOceanMega-Science,ChineseAcademyofSciences 5.UniversityofChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Chang Feng,Zhuoyuan Chen,Jiangping Jing,et al. Significantly enhanced photocatalytic hydrogen production performance of g-C_3N_4/CNTs/CdZnS with carbon nanotubes as the electron mediators. 2021. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。