Enhanced photocatalytic properties of graphene modified few-layered WSe2 nanosheets

被引：70
作者：
Yu, Bo [1 ]
Zheng, Binjie [1 ]
Wang, Xinqiang [1 ]
Qi, Fei [1 ]
He, Jiarui [1 ]
Zhang, Wanli [1 ]
Chen, Yuanfu [1 ]
机构：
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2017年 / 400卷
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
WSe2; WSe2/RGO composite; Solvothermal reaction; Photocatalytic activity; HIGHLY EFFICIENT; LIGHT; MOS2; NANOCOMPOSITES; DEGRADATION; COMPOSITES; GROWTH; FABRICATION; FILMS; ANODE;
D O I：
10.1016/j.apsusc.2016.12.015
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Reduced graphene oxide (RGO) modified few-layered WSe2 nanosheets have been synthesized through a facile one-pot solvothermal reaction. Compared with bare WSe2 nanosheets with relatively poor photocatalytic activity, WSe2/RGO composite demonstrates significant enhancement in photocatalytic degradation of organic dye RhB under visible light irradiation. The k value of WSe2/RGO is similar to 1.9 times larger than that of bare WSe2 nanosheets, which is attributed to the excellent charge separation feature and electronic transport ability of graphene nanosheets, leading to highly reduced electron-hole pair recombination of graphene on WSe2 nanosheets thus strongly enhancing the photocatalytic performance. The WSe2/RGO composite is a promising catalyst for photocatalytic degradation of organic pollutants by solar energy. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：420 / 425
页数：6
相关论文
共 50 条
  • [1] Few-layered WSe2 nanoflowers anchored on graphene nanosheets: a highly efficient and stable electrocatalyst for hydrogen evolution
    Wang, Xinqiang
    Chen, Yuanfu
    Zheng, Binjie
    Qi, Fei
    He, Jiarui
    Li, Pingjian
    Zhang, Wanli
    ELECTROCHIMICA ACTA, 2016, 222 : 1293 - 1299
  • [2] Few-layered WSe2 in-situ grown on graphene nanosheets as efficient anode for lithium-ion batteries
    Wang, Xinqiang
    He, Jiarui
    Zheng, Binjie
    Zhang, Wanli
    Chen, Yuanfu
    ELECTROCHIMICA ACTA, 2018, 283 : 1660 - 1667
  • [3] Few-Layered MoS2 Nanoparticles Loaded TiO2 Nanosheets with Exposed {001} Facets for Enhanced Photocatalytic Activity
    Chen, Chujun
    Xin, Xia
    Zhang, Jinniu
    Li, Gang
    Zhang, Yafeng
    Lu, Hongbing
    Gao, Jianzhi
    Yang, Zhibo
    Wane, Chunlan
    He, Ze
    NANO, 2018, 13 (11)
  • [4] Facile synthesis of few-layered MoS2 modified BiOI with enhanced visible-light photocatalytic activity
    Li, Xiaowei
    Xia, Jiexiang
    Zhu, Wenshuai
    Di, Jun
    Wang, Bin
    Yin, Sheng
    Chen, Zhigang
    Li, Huaming
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2016, 511 : 1 - 7
  • [5] High Photoresponsivity and Short Photoresponse Times in Few-Layered WSe2 Transistors
    Pradhan, Nihar R.
    Ludwig, Jonathan
    Lu, Zhengguang
    Rhodes, Daniel
    Bishop, Michael M.
    Thirunavukkuarasu, Komalavalli
    McGill, Stephen A.
    Smirnov, Dmitry
    Balicas, Luis
    ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (22) : 12080 - 12088
  • [6] Vertically oriented few-layered HfS2 nanosheets: growth mechanism and optical properties
    Zheng, Binjie
    Chen, Yuanfu
    Wang, Zegao
    Qi, Fei
    Huang, Zhishuo
    Hao, Xin
    Li, Pingjian
    Zhang, Wanli
    Li, Yanrong
    2D MATERIALS, 2016, 3 (03):
  • [7] Metallic WSe2: Sn nanosheets assembled on graphene by a modified hydrothermal process for hydrogen evolution reaction
    He, H-Y
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2020, 589
  • [8] Facile in-situ synthesis of a zinc oxide crystals/few-layered graphene flake composite for enhanced photocatalytic performance
    Tie, Weiwei
    Bhattacharyya, Surjya Sarathi
    Wang, Yanan
    He, Weiwei
    Lee, Seung Hee
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2017, 348 : 89 - 95
  • [9] Synthesis of mono- and few-layered n-type WSe2 from solid state inorganic precursors
    Och, Mauro
    Anastasiou, Konstantinos
    Leontis, Ioannis
    Zemignani, Giulia Zoe
    Palczynski, Pawel
    Mostaed, Ali
    Sokolikova, Maria S.
    Alexeev, Evgeny M.
    Bai, Haoyu
    Tartakovskii, Alexander, I
    Lischner, Johannes
    Nellist, Peter D.
    Russo, Saverio
    Mattevi, Cecilia
    NANOSCALE, 2022, 14 (42) : 15651 - 15662
  • [10] Insight into In Situ Amphiphilic Functionalization of Few-Layered Transition Metal Dichalcogenide Nanosheets
    Shen, Jianfeng
    Wu, Jingjie
    Wang, Man
    Ge, Yuancai
    Dong, Pei
    Baines, Robert
    Brunetto, Gustavo
    Machado, Leonardo D.
    Ajayan, Pulickel M.
    Ye, Mingxin
    ADVANCED MATERIALS, 2016, 28 (38) : 8469 - 8476
12345