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

被引：66
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
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