文献类型：期刊文献

英文题名：Photocatalytic enhancement of hybrid C3N4/TiO2 prepared via ball milling method

作者：Zhou, Jianwei[1,2];Zhang, Mo[2];Zhu, Yongfa[2]

第一作者：Zhou, Jianwei

通讯作者：Zhu, YF[1]

机构：[1]Xinxiang Univ, Inst Energy & Fuel, Xinxiang 453003, Peoples R China;[2]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

第一机构：新乡学院化学化工学院

通讯机构：[1]corresponding author), Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China.

年份：2015

卷号：17

期号：5

起止页码：3647-3652

外文期刊名：PHYSICAL CHEMISTRY CHEMICAL PHYSICS

收录：;Scopus(收录号：2-s2.0-84921646987);WOS:【SCI-EXPANDED(收录号:WOS:000348203200077)】；

基金：This work was partly supported by National Basic Research Program of China (973 Program) (2013CB632403), National High Technology Research and Development Program of China (2012AA062701) and Chinese National Science Foundation (21437003 and 21373121).

语种：英文

摘要：C3N4/TiO2 hybrid photocatalysts with highly enhanced photocatalytic performance were prepared by a facile ball milling method. A layered structure of g-C3N4 was formed on the surface of TiO2. The mechanochemical process can promote the dispersion of C3N4 on the surface of TiO2 particles, to form a single layer hybrid structure and a multi-layer core-shell structure. The photocatalytic activities of C3N4/TiO2 under visible and UV light irradiation were 3.0 and 1.3 times those of pure g-C3N4 and TiO2, respectively. Under visible light and UV irradiation, the photocurrent response was up to 2.5 times and 1.5 times as high as that of the pure TiO2 and C3N4, respectively. The evident performance enhancement of g-C3N4-TiO2 was mainly attributed to high separation and migration efficiency of electron-hole pairs.