Journal
CHINESE JOURNAL OF CATALYSIS
Volume 43, Issue 9, Pages 2332-2341Publisher
ELSEVIER
DOI: 10.1016/S1872-2067(21)63949-9
Keywords
Zr-MOF; Pore functionalization; Photocatalytic H-2 production; Molecular linker; Junction
Funding
- National Natural Science Foundation of China [52071171]
- Liaoning Revitalization Talents Program-Pan Deng Scholars [XLYC1802005]
- Liaoning BaiQianWan Talents Program [LNBQW2018B0048]
- Natural Science Fund of Liaoning Province for Excellent Young Scholars [2019-YQ-04]
- Key Project of Scientific Research of the Education Department of Liaoning Province [LZD201902]
- Department of Education of Liaoning Province [LQN201903, LQN202008]
- Foundation for Young Scholars of Liaoning University [LDQN2019007]
- Australian Research Council (ARC) [FT210100298]
Ask authors/readers for more resources
In this study, heterostructured Zr-MOF-S@CdS composites were successfully synthesized and exhibited high photocatalytic activity for efficient H-2 evolution. This work provides a new avenue for the design and synthesis of MOF-based composite photocatalysts.
Different materials, such as metal sulphides, are often combined with metal-organic frameworks (MOFs) to develop multi-functional composites and improve their photocatalytic properties. However, the high interfacial energy barrier limits the formation and nano-assembly of the heterogeneous junctions between MOFs and metal sulphides. Herein, the heterostructured Zr-MOF-S@CdS are successfully constructed through a sequential synthesis method, in which the mesoporous Zr-MOF are firstly decorated with thioglycolic acid through pore functionalization, and followed by the S(2 )anion exchange process resulting in the surface close attached growth of CdS onto Zr-MOF-S materials. Due to the presence of molecules linkers, the CdS can be precisely decorated onto Zr-MOF-S without aggregation, which can provide more active sites. Moreover, the intimate connections and the suitable band structures between two materials can also facilitate the photogenerated electron-hole pairs separation. Therefore, the resulting Zr-MOF-S@CdS with appropriate ratio exhibits high photocatalytic activity for water reduction, in which the H-2 evolution rate can reach up to 1861.7 mu mol.g(-1)h(-1) , 4.5 times higher than pure CdS and 2.3 times higher than of Zr-MOF/CdS, respectively. Considering the promising future of MOF-based photocatalysts, this work may provide an avenue for the further design and synthesis MOF-based composite photocatalysts for efficient H-2 evolution. (C) 2022, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available