BROWSE

Related Scientist

Researcher

이효영
나노구조물리 연구단
more info

Highly efficient hydrogen evolution catalysis based on MoS2/CdS/TiO2 porous composites

Cited 2 time in webofscience Cited 0 time in scopus
130 Viewed 27 Downloaded
Title
Highly efficient hydrogen evolution catalysis based on MoS2/CdS/TiO2 porous composites
Author(s)
Jimin Du; Huiming Wang; Mengke Yang; Fangfang Zhang; Haoran Wu; Xuechun Cheng; Sijie Yuan; Bing Zhang; Kaidi Li; Yina Wang; Hyoyoung Lee
Publication Date
2018-05
Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.43, no.19, pp.9307 - 9315
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
Efficient production of hydrogen through visible-light-driven water splitting mechanism using semiconductor-based composites has been identified as a promising strategy for converting light into clean H2 fuel. However, researchers are facing lots of challenges such as light absorption and electron-hole pair recombination and so on. Here, new sheet-shaped MoS2 and pyramid-shaped CdS in-situ co-grown on porous TiO2 photocatalysts (MoS2–CdS–TiO2) are successfully obtained via mild sulfuration of MoO3 and CdO coexisted inside porous TiO2 monolith by a hydrothermal route. The scanning electron microscopy and transmission electron microscopy results exhibit that the MoS2–CdS–TiO2 composites have average pore size about 500 nm. The 3%MoS2–10%CdS–TiO2 demonstrated excellent photocatalytic activity and high stability for a hydrogen production with a high H2-generation rate of 4146 μmol h−1 g−1 under visible light irradiation even without noble-metal co-catalysts. The super photocatalytic performance of the visible-light-driven hydrogen evolution is predominantly attributed to the synergistic effect. The conduction band of MoS2 facilitates in transporting excited electrons from visible-light on CdS to the porous TiO2 for catalytic hydrogen production, and holes to MoS2 for inhibiting the photocorrosion of CdS, respectively, leading to enhancing the efficient separation of electrons and holes. © 2018 Hydrogen Energy Publications LL © 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved
URI
https://pr.ibs.re.kr/handle/8788114/4543
ISSN
0360-3199
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
Highly efficient_International Journal of Hydrogen Energy_Hyoyoung Lee.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse