journal article·2016-10-05Open access

Partial Ion Exchange Derived 2D Cu–Zn–In–S Nanosheets as Sensitizers of 1D TiO2 Nanorods for Boosting Solar Water Splitting

Qiong Liu, Fengren Cao, Fangli Wu, Shimou Chen, Jie Xiong, Liang Li

Abstract

A facile route for the fabrication of a novel ZnS shell/Cu–Zn–In–S nanosheets/TiO 2 nanorods heterojunction was reported in this work. Especially, the quaternary Cu–Zn–In–S nanosheets were synthesized creatively from the ternary ZnIn 2 S 4 nanosheets by partial exchange reaction, leading to substantial enhancement on the light absorbance. Such heterojunction could increase the surface area and accelerate the charge transfer resulting from its hierarchical 2D/1D structure and favorable energy bands. Moreover, the ZnS coating acted as a passivation layer as well as a potential barrier, significantly suppressing the interface recombination. The above synergistic effects resulted in the largely increased photocurrent density from 0.34 mA cm –2 for the pristine TiO 2 to 0.81 mA cm –2 for the heterojunction at 0.8 V vs RHE.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · TiO2 Photocatalysis and Solar Cells

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou Nano Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou 215006, P. R. China

Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Central Committee of the Communist Party of China · Jiangsu Province · Jiangsu Science and Technology Committee · Priority Academic Program Development of Jiangsu Higher Education Institutions

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