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Preparation, activity and photocatalysis mechanism of high‐performance AgBrO 3 /AgBr photocatalysts
Author(s) -
Zhou Junqing,
Song Limin,
Zhao Xiaofei,
Zhang Shujuan
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5057
Subject(s) - photocatalysis , chemistry , methyl orange , photochemistry , diffuse reflectance infrared fourier transform , visible spectrum , scanning electron microscope , photodegradation , nuclear chemistry , chemical engineering , catalysis , organic chemistry , materials science , optoelectronics , engineering , composite material
AgBrO 3 /AgBr compound photocatalysts were prepared via a precipitation method and characterized by X‐ray diffraction, field emission scanning electron microscopy, ultraviolet–visible diffusion spectroscopy, and solid surface fluorescence trials. The photocatalytic performances and mechanism were also investigated. It was found the 2.5 wt.% AgBrO 3 /AgBr compound photocatalyst was most effective in dye degradation. The AgBrO 3 /AgBr showed degradation rate up to 94.5% in a 10 mg/L MO (Methyl Orange) solution and was still very stable after five cycles of reuse. The AgBrO 3 /AgBr photocatalysts could oxidize and decompose methyl orange molecules under visible light irradiation. The compounding largely improved the photocatalytic activity of AgBr. Photocatalytic mechanism experiments showed ·OH was the major active species.