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Byon, Chan
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1D Bi2S3 nanorod/2D e-WS2 nanosheet heterojunction photocatalyst for enhanced photocatalytic activity

Author(s)
Vattikuti, S.V.PrabhakarShim, JaesoolByon, Chan
Issued Date
2018-02
DOI
10.1016/j.jssc.2017.11.017
URI
https://scholarworks.unist.ac.kr/handle/201301/23057
Fulltext
http://www.sciencedirect.com/science/article/pii/S0022459617304632?via%3Dihub
Citation
JOURNAL OF SOLID STATE CHEMISTRY, v.258, pp.526 - 535
Abstract
The development of high-activity, long-life, precious-metal-free photocatalysts for redox reactions in photoelectrochemical cells and fuel cells remains challenging. The synthesis of high-activity heterostructured photocatalysts is crucial for efficient energy conversion strategies. Herein, a novel photocatalyst based on 1D Bi2S3 nanorods self-assembled on 2D exfoliated tungsten disulfide (e-WS2) nanosheets has been developed for the degradation of methyl orange (MO) dye in aqueous solution. We demonstrate a novel and facile hydrothermal method for the synthesis of a Bi2S3 nanorod/e-WS2 nanosheet heterostructure. The photocatalytic properties of the heterostructure under visible light were investigated. Enhanced photocatalytic activity was attributed to the presence of strong surface active sites, as well as the specific morphology of the composite. We also observed the fast transfer of electron-hole pairs at the material interface. This work demonstrates a non-noble semiconductor photocatalyst for the degradation of pollutants and evolution of H2.
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
ISSN
0022-4596
Keyword (Author)
1D2DHeterojunctionLayered materialsPhotocatalystsSelf-assembled
Keyword
HYDROGEN EVOLUTIONOPTICAL-PROPERTIESFACILE SYNTHESISPERFORMANCEWS2DEGRADATIONMOS2HETEROSTRUCTURESCOMPOSITESCOCATALYST

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