Enhancement of visible light photocatalytic activity of Ag2O/F-TiO2 composites

Wei Yu; Xinjuan Liu; Haipeng Chu; Guang Zhu; Jinliang Li; Junying Liu; Lengyuan Niu; Zhuo Sun; Likun Pan

doi:10.1016/j.molcata.2015.06.015

Enhancement of visible light photocatalytic activity of Ag₂O/F-TiO₂ composites

Wei Yu
, Xinjuan Liu^*
, Haipeng Chu
, Guang Zhu
, Jinliang Li
, Junying Liu
, Lengyuan Niu
, Zhuo Sun
, Likun Pan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

We synthesized the Ag₂O/F-TiO₂ composites via an aqueous precipitation method and characterized their morphology, structure and photocatalytic activity in the degradation of methylene blue (MB) using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis absorption spectroscopy, and electrochemical impedance spectra, respectively. The results show that the Ag₂O addition could enhance the visible light photocatalytic activity of Ag₂O/F-TiO₂ composites with a maximum MB degradation rate of 93% for 60 min, much higher than that of the F-TiO₂ (30%). The excellent photocatalytic activity is due to the increased visible light absorption, and promoted separation of photo-generated electrons and holes in F-TiO₂ with the introduction of Ag₂O.

Original language	English
Pages (from-to)	25-31
Number of pages	7
Journal	Journal of Molecular Catalysis A: Chemical
Volume	407
DOIs	https://doi.org/10.1016/j.molcata.2015.06.015
State	Published - 26 Jun 2015
Externally published	Yes

Keywords

AgO/F-TiO
Coprecipitation method
Methylene blue (MB)
Photocatalytic

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10.1016/j.molcata.2015.06.015

Cite this

@article{e2d07fadc251403a852a0a4fd45f6e2f,

title = "Enhancement of visible light photocatalytic activity of Ag2O/F-TiO2 composites",

abstract = "We synthesized the Ag2O/F-TiO2 composites via an aqueous precipitation method and characterized their morphology, structure and photocatalytic activity in the degradation of methylene blue (MB) using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis absorption spectroscopy, and electrochemical impedance spectra, respectively. The results show that the Ag2O addition could enhance the visible light photocatalytic activity of Ag2O/F-TiO2 composites with a maximum MB degradation rate of 93\% for 60 min, much higher than that of the F-TiO2 (30\%). The excellent photocatalytic activity is due to the increased visible light absorption, and promoted separation of photo-generated electrons and holes in F-TiO2 with the introduction of Ag2O.",

keywords = "AgO/F-TiO, Coprecipitation method, Methylene blue (MB), Photocatalytic",

author = "Wei Yu and Xinjuan Liu and Haipeng Chu and Guang Zhu and Jinliang Li and Junying Liu and Lengyuan Niu and Zhuo Sun and Likun Pan",

year = "2015",

month = jun,

day = "26",

doi = "10.1016/j.molcata.2015.06.015",

language = "英语",

volume = "407",

pages = "25--31",

journal = "Journal of Molecular Catalysis A: Chemical",

issn = "1381-1169",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Enhancement of visible light photocatalytic activity of Ag2O/F-TiO2 composites

AU - Yu, Wei

AU - Liu, Xinjuan

AU - Chu, Haipeng

AU - Zhu, Guang

AU - Li, Jinliang

AU - Liu, Junying

AU - Niu, Lengyuan

AU - Sun, Zhuo

AU - Pan, Likun

PY - 2015/6/26

Y1 - 2015/6/26

N2 - We synthesized the Ag2O/F-TiO2 composites via an aqueous precipitation method and characterized their morphology, structure and photocatalytic activity in the degradation of methylene blue (MB) using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis absorption spectroscopy, and electrochemical impedance spectra, respectively. The results show that the Ag2O addition could enhance the visible light photocatalytic activity of Ag2O/F-TiO2 composites with a maximum MB degradation rate of 93% for 60 min, much higher than that of the F-TiO2 (30%). The excellent photocatalytic activity is due to the increased visible light absorption, and promoted separation of photo-generated electrons and holes in F-TiO2 with the introduction of Ag2O.

AB - We synthesized the Ag2O/F-TiO2 composites via an aqueous precipitation method and characterized their morphology, structure and photocatalytic activity in the degradation of methylene blue (MB) using scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis absorption spectroscopy, and electrochemical impedance spectra, respectively. The results show that the Ag2O addition could enhance the visible light photocatalytic activity of Ag2O/F-TiO2 composites with a maximum MB degradation rate of 93% for 60 min, much higher than that of the F-TiO2 (30%). The excellent photocatalytic activity is due to the increased visible light absorption, and promoted separation of photo-generated electrons and holes in F-TiO2 with the introduction of Ag2O.

KW - AgO/F-TiO

KW - Coprecipitation method

KW - Methylene blue (MB)

KW - Photocatalytic

UR - https://www.scopus.com/pages/publications/84933521929

U2 - 10.1016/j.molcata.2015.06.015

DO - 10.1016/j.molcata.2015.06.015

M3 - 文章

AN - SCOPUS:84933521929

SN - 1381-1169

VL - 407

SP - 25

EP - 31

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

ER -

Enhancement of visible light photocatalytic activity of Ag₂O/F-TiO₂ composites

Abstract

Keywords

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