journal article·2015-10

Hydrothermal synthesis and photocatalytic activities of Bi4Ti3O12/SrTiO3 composite micro-platelets

Wei Zhao, Hongxing Wang, Xiangning Feng, Wangyang Jiang, Dan Zhao, Jiyuan Li

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Abstract

Abstract In this study, Bi4Ti3O12/SrTiO3 micro-platelets were successfully synthesized by using hydrothermal and molten salt methods, and the morphology and photocatalytic degradation performance of Bi4Ti3O12/SrTiO3 was characterized. The results indicated a much higher degradation rate of methylene blue and methylene orange, reaching more than 90% and 65%, respectively, within 3 h under visible-light irradiation. Compared with pure Bi4Ti3O12, the photocatalytic activity of Bi4Ti3O12/SrTiO3 was significantly better, due to the micron–submicron heterojunction with SrTiO3 reducing the band gap of Bi4Ti3O12. In addition, the perovskite structure layer facilitates the mobility of the photogenerated carriers and hampers their recombination, which were affected the photocatalytic properties.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Perovskite Materials and Applications · TiO2 Photocatalysis and Solar Cells

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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