文献类型：期刊文献

英文题名：Surface modification of TiO2 with g-C3N4 for enhanced UV and visible photocatalytic activity

作者：Lei, Juying[1,2,4];Chen, Ying[1,2];Shen, Fan[1,2];Wang, Lingzhi[1,2];Liu, Yongdi[4];Zhang, Jinlong[1,2,3]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China;[4]E China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2015

卷号：631

起止页码：328

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20150700519437);WOS:【SCI-EXPANDED(收录号:WOS:000350388800050)】；

基金：This work has been supported by the National Nature Science Foundation of China (21173077, 21377038, 21203062 and 21237003); the National Basic Research Program of China (973 Program, 2013CB632403), the Research Fund for the Doctoral Program of Higher Education (20120074130001), China Postdoctoral Science Foundation (2013M540339) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Photocatalysis; TiO2; g-C3N4; Surface modification; UV & visible activity

摘要：g-C3N4 modified TiO2 composites were prepared through a simple calcination process of anatase and cyanamide. The as-prepared samples were characterized by X-ray diffraction (XRD), diffuse reflectance spectrophotometry (DRS), fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), thermogravimetry differential thermal analysis (TG-DTA) and X-ray photoelectron spectroscopy (XPS), proving a successful modification of TiO2 with g-C3N4. Photodegradation of acid orange 7 (AO7) was used to evaluate the photocatalytic activities of the composites, showing excellent activity of them under both visible and UV light. In addition, base treatment was then introduced to investigate the interaction between g-C3N4 and TiO2. After removing the g-C3N4 modified on TiO2 by base, no nitrogen doping is found in TiO2 lattice, demonstrating the g-C3N4 was surface attached on TiO2 and attributing all improvement of photocatalytic activity of g-C3N4/TiO2 composite to the synergy between the two semiconductors. (C) 2015 Elsevier B.V. All rights reserved.