Additive-free solvothermal synthesis of peanut-like BiVO4 powders with enhanced photocatalysis activity

作者：Wang, X. J.^*; Liu, H. L.; Wan, X. L.; Wang, J. R.; Chang, L. L.

来源：CRYSTAL RESEARCH AND TECHNOLOGY, 2013, 48(12): 1066-1072.

DOI：10.1002/crat.201300198

• peanut-like BiVO4
• visible-light-driven photocatalysts
• solvothermal method
• Rhodamine B (RhB)

Monoclinic peanut-like BiVO4 products have been successfully synthesized by a solvothermal method. The volume of CH3COOH and the concentration of NH3H2O were found to play important roles in the formation of this morphology. The optimal condition for preparation of highly active peanut-like BiVO4 samples are the volume of CH3COOH, which was 5 ml, and the concentration of NH3H2O, which was 2 mol/L. The as-prepared samples were characterized by XRD, SEM, TEM, DRS, BET, and their photocatalytic activity was evaluated by photocatalytic decolorization of a Rhodamine B (RhB) aqueous solution under visible-light irradiation. The results demonstrated that BiVO4 with peanut-like morphology was better than that of other BiVO4 samples for photodegradation of RhB.

• 出版日期2013-12
• 单位河南师范大学