Self-assembly of a mesoporous ZnS/mediating interface/CdS heterostructure with enhanced visible-light hydrogen-production activity and excellent stability

Autor:	Min Han, Shuai-Lei Xie, Ya-Qian Lan, Shun-Li Li, Zhihui Dai, Jianchun Bao, Rong Chen, Kui Li
Rok vydání:	2015
Předmět:	Materials science Ethylenediamine Nanotechnology Heterojunction General Chemistry chemistry.chemical_compound chemistry Chemical engineering Photocatalysis Charge carrier Self-assembly Mesoporous material Hydrogen production Visible spectrum
Zdroj:	Chemical Science. 6:5263-5268
ISSN:	2041-6539 2041-6520
Popis:	We designed and successfully fabricated a ZnS/CdS 3D mesoporous heterostructure with a mediating Zn1−xCdxS interface that serves as a charge carrier transport channel for the first time. The H2-production rate and the stability of the heterostructure involving two sulfides were dramatically and simultaneously improved by the careful modification of the interface state via a simple post-annealing method. The sample prepared with the optimal parameters exhibited an excellent H2-production rate of 106.5 mmol h−1 g−1 under visible light, which was 152 and 966 times higher than CdS prepared using ethylenediamine and deionized water as the solvent, respectively. This excellent H2-production rate corresponded to the highest value among the CdS-based photocatalysts. Moreover, this heterostructure showed excellent photocatalytic stability over 60 h.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ce4e51639f8d216375b3145f1a2a687f https://doi.org/10.1039/c5sc01586c Zobrazit plný text záznamu