Enhanced visible light photocatalytic activity of g-C3N4 assisted by hydrogen peroxide

被引：7
|
作者：
Chen, Quan-Liang [1 ]
Liu, Yi-Ling [1 ]
Tong, Li-Ge [1 ]
机构：
[1] Southwest Minzu Univ, Coll Chem & Environm Protect Engn, Chengdu 610041, Sichuan, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2018年 / 5卷 / 04期
关键词：
carbon nitride; photocatalyst; hydrogen peroxide; rhodamine B; degradation; GRAPHITIC CARBON NITRIDE; ORGANIC-DYES; NANOSHEETS; DEGRADATION; H2O2; NANOPARTICLES; EVOLUTION; REMOVAL; WATER; RHB;
D O I：
10.1088/2053-1591/aab8c7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Water pollution has caused much attention nowadays. Photocatalysis as a kind of advanced oxidation technology has been widely studied in the field of environmental pollution control. As a stable nonmetal photocatalyst, the photocatalytic activity of g-C3N4 assisted by H2O2 was investigated for the degradation of Rhodamine B (RhB) under visible light irradiation. The combination of g-C3N4 and H2O2 has much higher activity than that of pure g-C3N4 or H2O2. Neutral solution is preferred for the high phtotocatalytic activity of g-C3N4 with H2O2. The effect of the amount of catalyst, H2O2 concentration and RhB concentration was investigated. Photocatalytic mechanism study using radical scavenger showed free radicals O-2(-) and center dot OH are the main active species. g-C3N4 assisted by H2O2 showed good photostability and repeatability after five cycles of degradation experiment.
引用
收藏
页数：9
相关论文
共 50 条
  • [31] Ag/g-C3N4 layered composites with enhanced visible light photocatalytic performance
    Chen, Lu
    Man, Yuhong
    Chen, Zhiqian
    Zhang, Yongping
    MATERIALS RESEARCH EXPRESS, 2016, 3 (11)
  • [32] Enhanced photocatalytic ozonation of organics by g-C3N4 under visible light irradiation
    Liao, Gaozu
    Zhu, Dongyun
    Li, Laisheng
    Lan, Bingyan
    JOURNAL OF HAZARDOUS MATERIALS, 2014, 280 : 531 - 535
  • [33] N,N-Dimethylformamide assisted hydrothermal introduction of MoS2 on ultrathin g-C3N4 layers with enhanced visible light photocatalytic hydrogen evolution activity
    Wu, Shiting
    Shi, Xiaowei
    Zhu, Mingshan
    SUSTAINABLE ENERGY & FUELS, 2019, 3 (06) : 1461 - 1467
  • [34] A metal-free 3C-SiC/g-C3N4 composite with enhanced visible light photocatalytic activity
    Xu, Hao
    Gan, Zhixing
    Zhou, Weiping
    Ding, Zuoming
    Zhang, Xiaowei
    RSC ADVANCES, 2017, 7 (63): : 40028 - 40033
  • [35] Synthesis of MWNTs/g-C3N4 composite photocatalysts with efficient visible light photocatalytic hydrogen evolution activity
    Ge, Lei
    Han, Changcun
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2012, 117 : 268 - 274
  • [36] Hydrothermal fabrication of α-SnWO4/g-C3N4 heterostructure with enhanced visible-light photocatalytic activity
    Liang, Qian
    Jin, Jie
    Liu, Changhai
    Xu, Song
    Yao, Chao
    Chen, Zhidong
    Li, Zhongyu
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2017, 28 (15) : 11279 - 11283
  • [37] A stable BiPO4/g-C3N4 nanosheet composite with highly enhanced visible light photocatalytic activity
    Liang, Qian
    Jin, Jie
    Liu, Changhai
    Xu, Song
    Yao, Chao
    Li, Zhongyu
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2018, 29 (03) : 2509 - 2516
  • [38] Hydrothermal fabrication of α-SnWO4/g-C3N4 heterostructure with enhanced visible-light photocatalytic activity
    Qian Liang
    Jie Jin
    Changhai Liu
    Song Xu
    Chao Yao
    Zhidong Chen
    Zhongyu Li
    Journal of Materials Science: Materials in Electronics, 2017, 28 : 11279 - 11283
  • [39] A stable BiPO4/g-C3N4 nanosheet composite with highly enhanced visible light photocatalytic activity
    Qian Liang
    Jie Jin
    Changhai Liu
    Song Xu
    Chao Yao
    Zhongyu Li
    Journal of Materials Science: Materials in Electronics, 2018, 29 : 2509 - 2516
  • [40] CdS/g-C3N4 Hybrids with Improved Photostability and Visible Light Photocatalytic Activity
    Xu, Yao
    Zhang, Wei-De
    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2015, (10) : 1744 - 1751
12345