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Potassium Tantalate K 6 Ta 10.8 O 30 with Tungsten Bronze Structure and Its Photocatalytic Property
Author(s) -
Wang Junting,
Xiao Chun,
Wu Xiaoyong,
Zhang Gaoke
Publication year - 2017
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201600642
Subject(s) - tantalate , photocatalysis , tungsten , crystallinity , bronze , chemistry , calcination , wolframite , inorganic chemistry , nuclear chemistry , mineralogy , chemical engineering , catalysis , metallurgy , materials science , crystallography , organic chemistry , optoelectronics , dielectric , engineering , ferroelectricity
With the tunable and flexible physicochemical properties, tantalate photocatalysts with tungsten bronze structure are worth being studied. In this work, we successfully synthesized a novel potassium tantalate K 6 Ta 10.8 O 30 with tungsten bronze structure using a facile solid‐state reaction route. The effects of calcination time on the phase composition, morphology and crystallinity of the obtained samples were studied by XRD and SEM analyses. In addition, the photocatalytic activity of the samples was evaluated by the degradation of ARG dye under UV light irradiation. The results indicated that the K 6 Ta 10.8 O 30 showed high photocatalytic activity for degradation of ARG and the photocatalytic degradation of ARG followed the first order kinetics. Furthermore, the possible photocatalytic mechanism of the K 6 Ta 10.8 O 30 photocatalyst was proposed based on tungsten bronze structure feature and the scavengers experimental results. This study would give a new insight into tantalate photocatalysts.