Open AccessPhotocatalytic Performance and Mechanism Research of Ag/HSTiO2 on Degradation of Methyl Orange
Author(s) -
Mingxin Li,
Renquan Guan,
Jiaxin Li,
Zhao Zhao,
Junkai Zhang,
Yunfeng Qi,
Hongju Zhai,
Lijing Wang
Publication year - 2020
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.0c01832
Subject(s) - methyl orange , photocatalysis , scanning electron microscope , transmission electron microscopy , materials science , nanocomposite , spectroscopy , degradation (telecommunications) , chemical engineering , nuclear chemistry , diffraction , analytical chemistry (journal) , photochemistry , nanotechnology , chemistry , optics , composite material , catalysis , chromatography , organic chemistry , physics , telecommunications , quantum mechanics , computer science , engineering
The Sol-gel method is successfully used to prepare high specific surface area TiO 2 (HSTiO 2 ). Then, the photodeposition method is used to composite silver particles with HSTiO 2 . X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Brunauer-Emmett-Teller, and UV-vis spectroscopy are used to characterize the Ag/HSTiO 2 nanocomposites. It can be concluded that the prepared TiO 2 has a large specific surface area, reaching 125.5 m 2 g -1 . Additionally, the addition of silver particles successfully broadens the photoresponse range from the UV region to the visible light region. In order to evaluate the photocatalytic activity of Ag/HSTiO 2 , we conducted the methyl orange degradation test. The results showed that the photocatalytic activity of the sample is significantly higher than that of pure TiO 2 .
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