Effects of citric acid and urea on the structural and morphological characteristics of BiVO4 synthesized by the sol-gel combustion method

被引：25
作者：
Chen, Long [1 ]
Wang, Junxia [1 ]
Meng, Dawei [1 ]
Xing, Yulin [1 ]
Tian, Xiaoyun [1 ]
Yu, Xiaohong [1 ]
Xu, Kun [1 ]
Wu, Xiuling [1 ]
机构：
[1] China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2015年 / 76卷 / 03期
基金：
中国国家自然科学基金;
关键词：
BiVO4; Sol-gel combustion; Citric acid; Urea; Microsphere; Photocatalysis; VISIBLE-LIGHT; PHOTOCATALYTIC DEGRADATION; HIERARCHICAL STRUCTURES; FACILE SYNTHESIS; SHAPED BIVO4; RHODAMINE-B; TEMPERATURE; PERFORMANCE; WATER; FABRICATION;
D O I：
10.1007/s10971-015-3806-1
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Micro-sized spherical BiVO4 photocatalysts composed of nanoparticles were synthesized by the sol-gel combustion method. The effects of citric acid and urea on the structural and morphological characteristics of samples were studied by X-ray diffraction, field emission scanning electron microscopy, N-2 adsorption and desorption and UV-Vis spectroscopy. The photocatalytic activity was evaluated by the photocatalytic degradation of rhodamine B under visible light. The results showed the sphere-shaped BiVO4 sample to have excellent photocatalytic performance compared with the bulk sample prepared by solid-state reaction. This enhancement could be attributed to the special spherical morphology, which enhanced the absorption ability, increased the separation efficiency of photon-generated carriers and improved surface reaction sites for consumption of photon-generated carriers. Uniform micro-sized spherical BiVO4 samples composed of nanoparticles were successfully synthesized by the sol-gel combustion method. The relationships between the morphologies and citric acid with urea contents were studied by using the field emission scanning electron microscopy (FE-SEM) technology. [GRAPHICS] .
引用
收藏
页码：562 / 571
页数：10
相关论文
共 49 条
  • [1] [Anonymous], 2014, Angew. Chem. Int. Ed., DOI DOI 10.1002/ange.201403611
  • [2] Shape-controlled synthesis of BiVO4 hierarchical structures with unique natural-sunlight-driven photocatalytic activity
    Dong, Shuying
    Feng, Jinglan
    Li, Yukun
    Hu, Limin
    Liu, Menglin
    Wang, Yifei
    Pi, Yunqing
    Sun, Jingyu
    Sun, Jianhui
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2014, 152 : 413 - 424
  • [3] Controlled synthesis of T-shaped BiVO4 and enhanced visible light responsive photocatalytic activity
    Dong, Shuying
    Yu, Chongfei
    Li, Yukun
    Li, Yihui
    Sun, Jianhui
    Geng, Xiaofei
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2014, 211 : 176 - 183
  • [4] Morphological control of TiO2 anatase nanoparticles: What is the good surface property to obtain efficient photocatalysts?
    Dufour, Fabien
    Pigeot-Remy, Stephanie
    Durupthy, Olivier
    Cassaignon, Sophie
    Ruaux, Valerie
    Torelli, Stephane
    Mariey, Laurence
    Mauge, Francoise
    Chaneac, Corinne
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 174 : 350 - 360
  • [5] Study of photoactivity of tungsten trioxide (WO3) for water splitting
    Enesca, Alexandru
    Duta, Anca
    Schoonman, Joop
    [J]. THIN SOLID FILMS, 2007, 515 (16) : 6371 - 6374
  • [6] Facile synthesis of porous InNbO4 nanofibers by electrospinning and their enhanced visible-light-driven photocatalytic properties
    Feng, Huiyu
    Hou, Dongfang
    Huang, Yunhui
    Hu, Xianluo
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 592 : 301 - 305
  • [7] WO3/BiVO4 composite photoelectrode prepared by improved auto-combustion method for highly efficient water splitting (vol 39, pg 2454, 2014)
    Fujimoto, Issei
    Wang, Nini
    Saito, Rie
    Miseki, Yugo
    Gunji, Takahiro
    Sayama, Kazuhiro
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (10) : 5202 - 5202
  • [8] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE
    FUJISHIMA, A
    HONDA, K
    [J]. NATURE, 1972, 238 (5358) : 37 - +
  • [9] Photocatalytic activity of BiVO4 nanospheres obtained by solution combustion synthesis using sodium carboxymethylcellulose
    Garcia Perez, U. M.
    Sepulveda-Guzman, S.
    Martinez-de la Cruz, A.
    Ortiz Mendez, U.
    [J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2011, 335 (1-2) : 169 - 175
  • [10] Low-temperature synthesis of BiVO4 powders by Pluronic-assisted hydrothermal method: Effect of the surfactant and temperature on the morphology and structural control
    Garcia-Perez, U. M.
    Martinez-de la Cruz, A.
    Sepulveda-Guzman, S.
    Peral, J.
    [J]. CERAMICS INTERNATIONAL, 2014, 40 (03) : 4631 - 4638
12345