化工进展2017，Vol.36Issue(11)：4080-4086,7.DOI:10.16085/j.issn.1000-6613.2017-0407
Co-BiVO4异质结光催化剂的制备及其性能
Preparation and properties of Co-doped BiVO4 heterojunction photocatalysts fabricated by hydrothermal method
摘要
Abstract
A unique Co-BiVO4 photocatalyst with heterostructure was synthesized via a simple one-step hydrothermal method. The material forms a p-n-type heterojunction structure by coating cobalt oxide on the surface of BiVO4. The morphology, structure, composition and optical property of the as-prepared nanocomposites were characterized by XRD, SEM, HRTEM, XPS, and UV-vis DRS. Characterization analysis showed that cobalt loaded on the surface of BiVO4 as oxide and the catalyst showed a significant red-shift in the absorption band in the visible region. The photocatalytic activities of the samples were examined by studying the degradation of methylene blue (MB) under visible-light irradiation. The results showed that the photocatalytic activity of Co-BiVO4 was increased by 4 times, compared with pure BiVO4 under visible light irradiation. The best photocatalytic activity was achieved when the molar ratio of Bi: Co was 1:2. The improving mechanisms of bismuth heterojunction and transition metal were further elucidating in the work.关键词
催化剂/钴-钒酸铋/异质结/水热/降解Key words
catalyst/Co-BiVO4/heterojunction/hydrothermal/degradation分类
化学化工引用本文复制引用
黄文迪,孙静,申婷婷,王西奎..Co-BiVO4异质结光催化剂的制备及其性能[J].化工进展,2017,36(11):4080-4086,7.基金项目
国家自然科学基金项目(21507067). （21507067）
