Carving the shell thickness of tungsten trioxide hollow multi-shelled structures for enhanced photocatalytic performance
文献类型：期刊论文
| 作者 | Zhang, Xing1; He, Yilei1; Wei, Yanze2; Yu, Ranbo1,3 |
| 刊名 | MATERIALS CHEMISTRY FRONTIERS
 |
| 出版日期 | 2021-09-09 |
| 页码 | 8 |
| DOI | 10.1039/d1qm01124c |
| 英文摘要 | As a special hierarchical architecture, the use of the hollow multi-shelled structure (HoMS) is a new approach to greatly enhance the photocatalytic activity of materials. Precise tailoring of the shell structure in HoMSs is challenging, and its effects on the optical and electrical properties remain obscure. Herein, as a potential high-performance water oxidation photocatalyst, tungsten trioxide (WO3) HoMSs with up to three shell numbers have been successfully fabricated. Furthermore, the accurate control of the shell thickness was realized in the range from 35 to 90 nm by optimizing the amount and distribution of tungsten ions adsorbed within carbonaceous microsphere templates. All as-synthesized WO3 HoMSs showed excellent activities in photocatalytic water oxidation superior to WO3 nanoparticles. Moreover, the effects of shell thickness on photocatalytic proceedings were thoroughly investigated. Although the thick-shelled (thick-3) WO3 HoMSs have a better light-harvesting performance, thin triple-shelled (thin-3) ones expressed higher photocatalytic activity owing to the increased charge-carrier separation/transfer efficiency and larger specific areas. Consequently, the remarkable photocatalytic water oxidation activity up to 907 mu mol g(-1) h(-1) with an apparent quantum efficiency of 6.3% was achieved by thin-3 WO3 HoMSs, showing the highest values among reported WO3 photocatalysts. Moreover, the mechanism clarification for modulating the shell thickness and the effect of the shell thickness on performance will be a valuable reference for further designing and synthesizing new nanostructures for highly efficient solar energy conversion. |
| WOS关键词 | PHOTOELECTROCHEMICAL CELLS ; GENERATION ; EFFICIENCY ; SPHERES ; OXIDE |
| 资助项目 | National Natural Science Foundation of China[51872024] ; National Natural Science Foundation of China[51932001] ; Shandong Provincial Natural Science Foundation[ZR2020QB109] |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000704613600001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation of China ; Shandong Provincial Natural Science Foundation |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50324]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wei, Yanze; Yu, Ranbo |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Dept Phys Chem, 30 Xueyuan Rd, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, 1 North 2nd St, Beijing 100190, Peoples R China 3.Zhengzhou Univ, Key Lab Adv Mat Proc & Mold, Minist Educ, Zhengzhou 450002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xing,He, Yilei,Wei, Yanze,et al. Carving the shell thickness of tungsten trioxide hollow multi-shelled structures for enhanced photocatalytic performance[J]. MATERIALS CHEMISTRY FRONTIERS,2021:8. |
| APA | Zhang, Xing,He, Yilei,Wei, Yanze,&Yu, Ranbo.(2021).Carving the shell thickness of tungsten trioxide hollow multi-shelled structures for enhanced photocatalytic performance.MATERIALS CHEMISTRY FRONTIERS,8. |
| MLA | Zhang, Xing,et al."Carving the shell thickness of tungsten trioxide hollow multi-shelled structures for enhanced photocatalytic performance".MATERIALS CHEMISTRY FRONTIERS (2021):8. |
入库方式： OAI收割
来源：过程工程研究所
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