A Versatile Strategy for Shish-Kebab-like Multi-heterostructured Chalcogenides and Enhanced Photocatalytic Hydrogen Evolution | Zendy

Jianqiang Hu | Zendy; Aili Liu | Zendy; Huile Jin | Zendy; Dekun Ma | Zendy; Dewu Yin | Zendy; Pengsheng Ling | Zendy; Shun Wang | Zendy; Zhiqun Lin | Zendy; Jichang Wang | Zendy

Open Access

A Versatile Strategy for Shish-Kebab-like Multi-heterostructured Chalcogenides and Enhanced Photocatalytic Hydrogen Evolution

Author(s) -

Jianqiang Hu,

Aili Liu,

Huile Jin,

Dekun Ma,

Dewu Yin,

Pengsheng Ling,

Shun Wang,

Zhiqun Lin,

Jichang Wang

Publication year - 2015

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/jacs.5b04784

Subject(s) - photocatalysis , chemistry , chemical engineering , ethylene glycol , heterojunction , chalcogen , crystallization , metal , sulfide , cadmium sulfide , dissolution , nanotechnology , materials science , inorganic chemistry , catalysis , crystallography , organic chemistry , optoelectronics , engineering

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.

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