期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 556, 期 -, 页码 92-101出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2019.08.038
关键词
Ti mesh; TiO2 nanotube arrays; Bi2MoO6; Photoelectrocatalyst; Type-II heterojunction
资金
- Natural Science Foundation of Shandong Province [ZR2019QB023, ZR2019MB019]
- Project of Shandong Province Higher Educational Science and Technology Program [J16LA09]
- National Natural Science Foundation of China [51402145]
The fabrication of TiO2 NTs/Bi2MoO6 type-II heterojunction photocatalyst was carried out by a simple solvothermal method. Bi2MoO6 nanoparticles with nanosheet microstructures were successfully loaded on TiO2 NTs surface through the adjustment of reaction intervals. The heterojunction photocatalyst showed excellent organic dye and heavy metal ion removal performances, and nearly 100%, 75%, 100% and 100% of MO, RhB, MB and Cr (VI) were removed by simulative sunlight irradiation for 3 or 2 h, respectively. The outstanding photocatalyic performance was mainly due to the formation of type-II heterojunction between TiO2 and Bi2MoO6. The type-II heterojunction not only enhanced visible light response but also accelerated photogenerated charge carrier transfer and restrained the recombination of photogenerated electron-hole pairs with the assistance of internal electric field. (C) 2019 Elsevier Inc. All rights reserved.
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