Synthesis of TiO2@g-C3N4 core-shell nanorod arrays with Z-scheme enhanced photocatalytic activity under visible light

被引：65
作者：
Hao, Jinggang [1 ]
Zhang, Shaofeng [1 ]
Ren, Feng [2 ]
Wang, Zhaowu [1 ,3 ]
Lei, Jianfei [1 ]
Wang, Xuening [2 ]
Cheng, Tao [1 ]
Li, Liben [1 ]
机构：
[1] Henan Univ Sci & Technol, Sch Phys & Engn, Luoyang 471000, Peoples R China
[2] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China
[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2017年 / 508卷
基金：
中国国家自然科学基金;
关键词：
In-situ formation; TiO2@g-C3N4; Core-shell structure; Z-scheme; Photocatalysis; GRAPHITIC CARBON NITRIDE; NANOTUBE ARRAYS; G-C3N4; WATER; PHOTODEGRADATION; DEGRADATION;
D O I：
10.1016/j.jcis.2017.08.065
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：
Novel rutile TiO2@g-C3N4 core-shell photocatalysts were synthesized by a facile saturated aqueous solution method. The composites were further characterized by using X-ray diffraction (XRD), high-resolution transmission microscopy (HRTEM), UV-visible light diffusion reflectance spectrometry (DRS), X-ray photoelectron spectroscopy (XPS) and so on. The results indicated that an ultrathin layer of g-C3N4 was in situ fabricated over the surface of rutile TiO2 nanorod. The rutile TiO2@ g-C3N4 core-shell structures showed much higher photo-current and photocatalytic activity for Rhodamine B (RhB) degradation under visible irradiation. The enhanced performance was attributed to the high separation efficiency of photo induced carriers via a Z-scheme form. (C) 2017 Published by Elsevier Inc.
引用
收藏
页码：419 / 425
页数：7
相关论文
共 38 条
  • [1] Graphitic carbon nitride nanosheets decorated with CuCr2O4 nanoparticles: Novel photocatalysts with high performances in visible light degradation of water pollutants
    Akhundi, Anise
    Habibi-Yangjeh, Aziz
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2017, 504 : 697 - 710
  • [2] High performance magnetically recoverable g-C3N4/Fe3O4/Ag/Ag2SO3 plasmonic photocatalyst for enhanced photocatalytic degradation of water pollutants
    Akhundi, Anise
    Habibi-Yangjeh, Aziz
    [J]. ADVANCED POWDER TECHNOLOGY, 2017, 28 (02) : 565 - 574
  • [3] Facile preparation of novel quaternary g-C3N4/Fe3O4/AgI/Bi2S3 nanocomposites: magnetically separable visible-light-driven photocatalysts with significantly enhanced activity
    Akhundi, Anise
    Habibi-Yangjeh, Aziz
    [J]. RSC ADVANCES, 2016, 6 (108): : 106572 - 106583
  • [4] Novel g-C3N4/Ag2SO4 nanocomposites: Fast microwave-assisted preparation and enhanced photocatalytic performance towards degradation of organic pollutants under visible light
    Akhundi, Anise
    Habibi-Yangjeh, Aziz
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2016, 482 : 165 - 174
  • [5] Structure and electronic structure of S-doped graphitic C3N4 investigated by density functional theory
    Chen Gang
    Gao Shang-Peng
    [J]. CHINESE PHYSICS B, 2012, 21 (10)
  • [6] Facet-Dependent Photoreduction on Single ZnO Crystals
    Debroye, Elke
    Van Loon, Jordi
    Yuan, Haifeng
    Janssen, Kris P. F.
    Lou, Zaizhu
    Kim, Sooyeon
    Majima, Tetsuro
    Roeffaers, Maarten B. J.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2017, 8 (02): : 340 - 346
  • [7] Preparation of the TiO2/Graphic Carbon Nitride Core-Shell Array as a Photoanode for Efficient Photoelectrochemical Water Splitting
    Fan, Xiaoli
    Wang, Tao
    Gao, Bin
    Gong, Hao
    Xue, Hairong
    Guo, Hu
    Song, Li
    Xia, Wei
    Huang, Xianli
    He, Jianping
    [J]. LANGMUIR, 2016, 32 (50) : 13322 - 13332
  • [8] Novel ternary g-C3N4/Fe3O4/Ag2CrO4 nanocomposites: magnetically separable and visible-light-driven photocatalysts for degradation of water pollutants
    Habibi-Yangjeh, Aziz
    Akhundi, Anise
    [J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2016, 415 : 122 - 130
  • [9] Template-free preparation of macro/mesoporous g-C3N4/TiO2 heterojunction photocatalysts with enhanced visible light photocatalytic activity
    Hao, Ruirui
    Wang, Guohong
    Tang, Hua
    Sun, Lingling
    Xu, Chang
    Han, Deyan
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 187 : 47 - 58
  • [10] Hybrid functionals based on a screened Coulomb potential
    Heyd, J
    Scuseria, GE
    Ernzerhof, M
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (18) : 8207 - 8215
1234