期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 21, 页码 17911-17922出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b02955
关键词
ternary sulfide; hollow structures; gas bubble template; yolk-shell; photocatalytic activities
资金
- National Natural Science Foundation of China [21673300]
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Wuhan University), Ministry of Education [ACBM2017003]
- Hubei Provincial Natural Science Foundation of China [2018CFB237]
A series of ternary sulfide hollow structures have been successfully prepared by a facile glutathione (GSH)-assisted one-step hydrothermal route, where GSH acts as the source of sulfur and bubble template. We demonstrate the feasibility and versatility of this in situ gas-bubble template strategy by the fabrication of novel hollow structures of MIn2S4 (M = Cd, Zn, Ca, Mg, and Mn). Interestingly, with the reaction time varying, the hierarchical CdIn2S4 microspheres with controlled internal structures can be regulated from yolk shell, smaller yolk-shell (yolk shell with shrunk yolk), hollow, to solid. Under visible-light irradiation, all of our prepared CdIn2S4 samples with different morphologies were photoactivated. In virtue of the appealing hierarchical hollow structure, the yolk-shell-structured CdIn2S4 microspheres exhibited the optimal photocatalytic activity and excellent durability for both the X3B degradation and H-2 evolution, which can be ascribed to the synergy-promoting effect of the small crystallite size together with the unique structural advantages of the yolk-shell structure. Thus, we hypothesize that this proof-of-concept strategy paves an example of rational design of hollow structured ternary or multinary sulfides with superior photochemical performance, holding great potential for future multifunctional applications.
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