%0 Journal Article
%A Caihong Feng
%A Xianpu Meng
%A Xiaolu Song
%A Xueting Feng
%A Yun Zhao
%A Gao Liu
%B RSC Advances
%D 2016
%G eng
%N 111
%P 110266 - 110273
%R 10.1039/C6RA20306J
%T Controllable synthesis of hierarchical CuS/ZnS hetero-nanowires as high-performance visible-light photocatalysts
%V 6
%8 11/2016
%! RSC Adv.
%X <p><span>Novel hierarchical CuS/ZnS hetero-nanowires were designed and successfully synthesized through a template-free and surfactant-free chemical solution method with a mixed solvent of dimethyl sulfoxide and ethylene glycol. The precursors of CuS and the molar ratio of Cu : Zn, play a crucial role in controlling the morphology of the CuS/ZnS heterostructure. The precursors of CuS serve both as a source material for chemical transformation to CuS and as sacrificial templates for the growth of ZnS nanosheets by adding zinc(</span><small>II</small><span>) ions, finally forming a ZnS/CuS hierarchical nanomaterial with p–n heterojunctions. The as-prepared samples were examined by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, UV-visible diffuse reflectance spectroscopy and Brunauer–Emmett–Teller measurements. Photocatalytic activities for methylene blue and rhodamine B were investigated under visible-light irradiation, and appreciably increased photocatalytic activity compared to individual counterparts is achieved by the hierarchical CuS/ZnS hetero-nanowires. The p–n heterojunction, one-dimensional nanostructures and large specific surface area are responsible for the improved photocatalytic activities.</span></p>