BiVO4 microstructures with various morphologies: Synthesis and characterization

被引:73
作者
Wu, Min [1 ]
Jing, Qifeng [1 ]
Feng, Xinyan [1 ]
Chen, Limiao [1 ]
机构
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
Bismuth vanadate; Hydrothermal synthesis; Morphology; Photocatalytic activity; Dye degradation; DRIVEN PHOTOCATALYTIC PERFORMANCE; BI-BASED PHOTOCATALYSTS; VISIBLE-LIGHT; HIERARCHICAL STRUCTURES; WATER OXIDATION; RHODAMINE-B; WASTE-WATER; DOPED BIVO4; DEGRADATION; CRYSTALS;
D O I
10.1016/j.apsusc.2017.07.299
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Bismuth vanadate (BiVO4) microstructures with dumbbell, rod, ellipsoid, sphere, and cake-like morphologies have been successfully fabricated by using a surfactant-free hydrothermal method, in which the morphology of the BiVO4 microstructures can be tuned by simply varying the molar ratio of Bi(NO)(3).5H(2)O to NaVO3 in the starting materials. Based on a series of contrast experiments, the probable formation mechanism of the BiVO4 microstructures with multiple shapes have been proposed. The photocatalytic performances of the as-prepared BiVO4 microstructures have been evaluated by studying the degradation of Rhodamine B solutions under visible light irradiation. The results reveal that the cake-like BiVO4 microstructures exhibit the higher photocatalytic activity than other BiVO4 microstructures due to its high surface area and unique morphology. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:525 / 532
页数:8
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