Abstract Polyaniline/Bismuth Vanadate/Graphene Oxide (PANI-BiVO4-GO) or BGPA composite was prepared by sonochemical deposition of bismuth vanadate-graphene oxide (BiVO4) nanoparticles on the surface of polyaniline (PANI). The best photocatalytic degradation performance was obtained by 5wt% BGPA composites for MB, RhB, and SO dyes, which is approximately 4 times higher than that of 1% BGPA. Meanwhile, the photocatalytic stability of BiVO4 was significantly improved by introducing PANI into the PANI-BiVO4-GO composite. The dramatic promotion of the photocatalytic degradation performance and the photocatalytic stability can be attributed to the formation of a heterojunction free electron between PANI and BiVO4-GO. The existence of those extra free electrons can dramatically enhance the efficiency of the photogenerated electrons, which accelerate the transfer of photogenerated holes from BiVO4-GO to PANI, and therefore inhibit the self-oxidation of BiVO4.

中文翻译：

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PANI-BiVO4-GO半导体纳米复合材料的声化学合成高效可见光光催化性能

摘要 通过将钒酸铋-氧化石墨烯（BiVO4）纳米颗粒声化学沉积在聚苯胺（PANI）表面，制备了聚苯胺/钒酸铋/氧化石墨烯（PANI-BiVO4-GO）或BGPA复合材料。5wt% BGPA 复合材料对 MB、RhB 和 SO 染料的光催化降解性能最好，比 1% BGPA 高约 4 倍。同时，通过将PANI引入PANI-BiVO4-GO复合材料中，BiVO4的光催化稳定性显着提高。光催化降解性能和光催化稳定性的显着提升可归因于 PANI 和 BiVO4-GO 之间异质结自由电子的形成。这些额外自由电子的存在可以显着提高光生电子的效率，