The electronic structure modification and photocatalytic ability improvement of Rb0.9Nb1.625Mo0.375O5.62 β-pyrochlore compound

Andrey V. Koryagin,Diana G. Fukina, Valeria A. Shotina,Dmitry N. Titaev, Elena V. Shilova,Evgeny V. Suleimanov

Materials Science and Engineering: B（2023）

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摘要

•Modified compounds with composition of Rb0.75Cu0.15Nb1.625Mo0.375O5.6, Rb0.8Mn0.1Nb1.625Mo0.375O5.7 and heterostructure Rb0.9Nb1.625Mo0.375O5.62/SnO2 have been obtained under hydrothermal conditions.•The band gap structure of Rb0.75Cu0.15Nb1.625Mo0.375O5.6, Rb0.8Mn0.1Nb1.625Mo0.375O5.7 and heterostructure Rb0.9Nb1.625Mo0.375O5.62/SnO2 has been studied.•Photocatalytic activity of Rb0.75Cu0.15Nb1.625Mo0.375O5.6, Rb0.8Mn0.1Nb1.625Mo0.375O5.7 and heterostructure Rb0.9Nb1.625Mo0.375O5.62/SnO2 have been investigated.•The possible pathway of methylene blue photocatalytic decomposition has been proposed for high-effective visible light photocatalyst Rb0.9Nb1.625Mo0.375O5.62/SnO2.

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关键词

Pyrochlore structure,Diffuse reflectance spectroscopy,Scanning electron microscopy,Energy dispersive X-ray microanalysis,Band gap,Photocatalysis

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