Facile synthesis of AgBi25GaO39Bi2WO6 heterostructure with enhanced photocatalytic performance based on interface structure design
作者： Chao-Nan Lv , Lei Zhang , Yuan-Xin Zhu , Xin Zhang , Jin-Song Hu
DOI: 10.1016/J.JTICE.2019.01.013
关键词:
摘要: Abstract Composite photocatalytic system based on interface structure design is deemed to be a feasible method improve the efficiency of sillenite-type material. Therefore, we reported successful construction novel tetrahedron-like Ag Bi25GaO39 Bi2WO6 heterostructure through partial chemical conversion strategy coupling with photo-reduction method. Experiment indicated that as-prepared heterogeneous possessed excellent photo-degradation activity for decomposition Rhodamine B (RhB) and 95% RhB molecules could decomposed after 20 min UV–vis light irradiation by comparison single Bi2WO6, as well heterostructure. Moreover, resulted product also exhibited outstanding other pollutant such phenol toxic Cr(VI) solutions. Due advantages derived from rational (matching band structure, intimate interfacial contacts, “face-to-face” contact mode hetero-interface famous “schottky barriers"), photo-generated charges generated in composite separated quickly, thus exhibiting ability. This concept can provide new ideas similar systems.
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