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- W3204648892 abstract "The severe recombination of photo-generated carriers is a key issue that restricts the development of photo-electric catalysis technology. Herein, it is proposed for the first time to utilize the polarization field of Bi2WO6 pyroelectric materials to adjust the photo-electric catalysis performance to achieve the degradation of dyes such as methylene blue (MB) and rhodamine B (RhB). Under 20–45 °C alternating hot and cold, light illumination and external bias, the catalytic rate of Bi2WO6 for MB is 3.06 × 10−2 min−1 which respectively increases by 2.14 and 13.85 times compared with photo-electric catalysis (9.731 ×10−3 min−1) and pyro-electric catalysis (2.06 ×10−3 min−1), and the catalytic rate of Bi2WO6 for RhB is 1.96 × 10−2 min−1 which respectively increases by 1.04 and 11.35 times compared with photo-electric catalysis (9.60 ×10−3 min−1) and pyro-electric catalysis (1.59 ×10−3 min−1). The improvement in catalysis efficiency is originated from the increased carrier concentration caused by the combination of pyro-generated carriers and photo-generated carriers, and the polarized built-in electric field. This study proves that Bi2WO6 pyroelectric materials can be used for photo-electric catalysis degradation of pollutants by utilization of a variety of clean energy including solar energy, thermal energy and electrical energy simultaneously, which provides a critical idea for the design of new environmentally friendly electrodes for catalytic degradation." @default.
- W3204648892 created "2021-10-11" @default.
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- W3204648892 date "2022-02-01" @default.
- W3204648892 modified "2023-10-15" @default.
- W3204648892 title "Pyro-photo-electric catalysis in Bi2WO6 nanostructures for efficient degradation of dyes under thermal-assisted visible light irradiation" @default.
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- W3204648892 doi "https://doi.org/10.1016/j.jallcom.2021.162203" @default.
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