Fabrication of BiVO4: Effect of Structure and Morphology on Photocatalytic Activity and Its Methylene Blue Decomposition Mechanism

被引：6
作者：
Guo Minna [1 ]
He Qianglong [1 ]
Wang Wenjie [1 ]
Wu Jie [1 ]
Wang Weimin [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2016年 / 31卷 / 04期
基金：
美国国家科学基金会;
关键词：
BiVO4; morphology; photocatalytic; methylene blue; dcomposition mechanism; LOW-TEMPERATURE-SYNTHESIS; HYDROTHERMAL SYNTHESIS; MESOPOROUS BIVO4; PERFORMANCE; MICROSPHERES; DEGRADATION; TEMPLATE; REMOVAL; POWDERS; PHENOL;
D O I：
10.1007/s11595-016-1447-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
BiVO4 photocatalysts were synthesized by a surfactant free hydrothermal method without any further treatments, and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), Raman spectroscopy, and Brunauer-Emmett-Teller (BET) surface area techniques. The photocatalytic activity was evaluated for the degradation of the methylene blue (MB) under visible light irradiation. Seen from the structural and morphological characterization, it is stated that the obtained samples present monoclinic phase, and the pH value has significant influence on the morphologies. The enhanced photocatalytic performance was associated with its crystallinity, unique morphology, band gap energy, BET specific surface area, surface charge and adsorption capacity. The recycle experiments results show that the BiVO4 photocatalysts have excellent photo-stability, and we deduced a possible mechanism by examining the effects of the active species involved in the photocatalytic process for MB photocatalytic degradation.
引用
收藏
页码：791 / 798
页数：8
相关论文
共 37 条
[1]   Morphology-dependent photocatalytic removal of NO by hierarchical BiVO4 microboats and microspheres under visible light [J].
Ai, Zhihui ;
Lee, Shuncheng .
APPLIED SURFACE SCIENCE, 2013, 280 :354-359
[2]  
[Anonymous], TRANSP EL AS PAC ITE
[3]   One-Pot Template-Free Hydrothermal Synthesis of Monoclinic BiVO4 Hollow Microspheres and Their Enhanced Visible-Light Photocatalytic Activity [J].
Cheng, Bei ;
Wang, Wenguang ;
Shi, Lei ;
Zhang, Jun ;
Ran, Jingrun ;
Yu, Huogen .
INTERNATIONAL JOURNAL OF PHOTOENERGY, 2012, 2012
[4]   Shape-controlled synthesis of BiVO4 hierarchical structures with unique natural-sunlight-driven photocatalytic activity [J].
Dong, Shuying ;
Feng, Jinglan ;
Li, Yukun ;
Hu, Limin ;
Liu, Menglin ;
Wang, Yifei ;
Pi, Yunqing ;
Sun, Jingyu ;
Sun, Jianhui .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2014, 152 :413-424
[5]   Low temperature-synthesis of BiVO4 nanorods using polyethylene glycol as a soft template and the visible-light-activity for copper acetylacetonate decomposition [J].
Eda, Sho-ichi ;
Fujishima, Musashi ;
Tada, Hiroaki .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2012, 125 :288-293
[6]   Effect of BiVO4 Crystalline Phases on the Photoinduced Carriers Behavior and Photocatalytic Activity [J].
Fan, Haimei ;
Jiang, Tengfei ;
Li, Haiyan ;
Wang, Dejun ;
Wang, Lingling ;
Zhai, Jiali ;
He, Dongqing ;
Wang, Ping ;
Xie, Tengfeng .
JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (03) :2425-2430
[7]   Low-temperature synthesis of BiVO4 powders by Pluronic-assisted hydrothermal method: Effect of the surfactant and temperature on the morphology and structural control [J].
Garcia-Perez, U. M. ;
Martinez-de la Cruz, A. ;
Sepulveda-Guzman, S. ;
Peral, J. .
CERAMICS INTERNATIONAL, 2014, 40 (03) :4631-4638
[8]   Synthesis of buckhorn-like BiVO4 with a shell of CeOx nanodots: Effect of heteroj unction structure on the enhancement of photocatalytic activity [J].
Gu, Shaonan ;
Li, Wenjun ;
Wang, Fangzhi ;
Wang, Shuyun ;
Zhou, Hualei ;
Li, Hongda .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 170 :186-194
[9]   Effect of the pH Value of Synthesis Conditions on the Phase Structure and Photocatalytic Properties of Bismuth Molybdates Synthesized Using a Hydrothermal Method [J].
Guo, Wenfeng ;
Li, Heping ;
Teng, Weixiu ;
Cui, Linfan ;
Jiao, Tifeng .
NANOMATERIALS AND NANOTECHNOLOGY, 2015, 5
[10]   One-pot template-free synthesis of heterophase BiVO4 microspheres with enhanced photocatalytic activity [J].
Hu, Yin ;
Li, Danzhen ;
Sun, Fuqian ;
Wang, Huibin ;
Weng, Yaqing ;
Xiong, Wei ;
Shao, Yu .
RSC ADVANCES, 2015, 5 (68) :54882-54889
1234