CO_3~(2-) mediated approach to fabricate the β-Bi_2O_3/ZnO composites with excellent visible-light responsive photocatalytic performance

摘要

beta-Bi2O3/ZnO composites have been successfully prepared using CO32- mediated method and subsequent calcination. The photocatalytic results showed that beta-Bi2O3/ZnO composites exhibited much higher photocatalytic activities than that of pure ZnO and beta-Bi2O3 and outstanding recyclability under visible-light irradiation. The enhanced photocatalytic efficiency was mainly attributed to the beta-Bi2O3/ZnO composites in which efficiently suppressed the recombination of photogenerated electron-hole pairs and the enhanced visible light harvest. (C) 2019 Elsevier B.V. All rights reserved.