A Versatile Strategy for Shish-Kebab-like Multi-heterostructured Chalcogenides and Enhanced Photocatalytic Hydrogen Evolution.
A series of multi-heterostructured metal chalcogenides (CdS-Te, NiS/CdS-Te, and MoS2/CdS-Te) with a surprising shish-kebab-like structure have been synthesized via a one-step microwave-assisted pyrolysis of dithiocarbamate precursors in ethylene glycol. Subsequently, CdS-Te composites were exploited as a self-sacrificial template to craft various CdS-Te@(Pt, Pd) multi-heterostructures. Highly uniform dispersion and intimate interactions between CdS and multicomponent cocatalysts, together with improved separation of photogenerated carriers due to the presence of Te nanotubes (NTs) and trace CdTe, enable CdS-based heterostructured photocatalysts to exhibit greatly enhanced efficiency and stability in the photocatalytic production of H2. Thorough morphological characterizations revealed that the growth of metal sulfide/Te heterostructures originates from the growth of Te tubes, which is likely governed by diffusion-limited depletion of the Te precursor and the dissolution-crystallization process of Te seeds followed by the formation of metal sulfide kebabs.
College of Chemistry and Materials Engineering, Wenzhou University , Wenzhou, Zhejiang 325035, China.
Jianqiang
J
Hu
College of Chemistry and Materials Engineering, Wenzhou University , Wenzhou, Zhejiang 325035, China.
Aili
A
Liu
College of Chemistry and Materials Engineering, Wenzhou University , Wenzhou, Zhejiang 325035, China.
Huile
H
Jin
College of Chemistry and Materials Engineering, Wenzhou University , Wenzhou, Zhejiang 325035, China.
Dekun
D
Ma
College of Chemistry and Materials Engineering, Wenzhou University , Wenzhou, Zhejiang 325035, China.
Dewu
D
Yin
College of Chemistry and Materials Engineering, Wenzhou University , Wenzhou, Zhejiang 325035, China.
Pengsheng
P
Ling
College of Chemistry and Materials Engineering, Wenzhou University , Wenzhou, Zhejiang 325035, China.
Shun
S
Wang
School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States.
Zhiqun
Z
Lin
Department of Chemistry and Biochemistry, University of Windsor , Windsor, ON, Canada N9B 3P4.
Jichang
J
Wang