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author:

Li, Jiade (Li, Jiade.) [1] | Wei, Longfu (Wei, Longfu.) [2] | Yu, Changlin (Yu, Changlin.) [3] | Fang, Wen (Fang, Wen.) [4] | Xie, Yu (Xie, Yu.) [5] | Zhou, Wanqin (Zhou, Wanqin.) [6] | Zhu, Lihua (Zhu, Lihua.) [7]

Indexed by:

EI

Abstract:

Graphene oxide (GO) was firstly fabricated from graphite powder by Hummers method. Then a series of GO/Ag2CO3 composite photocatalysts (0.1% GO/Ag2CO3, 0.5%GO/Ag2CO3, 1%GO/Ag2CO3, 4%GO/Ag2CO3) were synthesized by a facile liquid deposition process. The produced products were characterized by powder X-ray diffraction (XRD), N2 physical adsorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscope (FT-IR), Raman spectra and UV-vis diffuse reflectance spectroscopy (UV-vis DRS). The photocatalytic activity of the samples was evaluated by photocatalytic degradation of methyl orange (MO) under visible light irradiation. The influence of GO concentration on the photocatalytic activity of GO/Ag2CO3 was investigated. The results showed that GO can be easily dispersed into Ag2CO3, producing well contacted GO/Ag2CO3 composite. Coupling of trace GO largely enhanced the visible light absorption. Moreover, GO could suppress the growth of Ag2CO3 grain crystals. With optimum GO content (0.5%), the degradation rate of MO is 85.37% after 120 min light irradiation, which Exhibits 1.53 times activity of that of pure Ag2CO3. More importantly, a large improvement in stability was obtained over the composite. The increase in photocatalytic activity and stability could be mainly attributed to the coupling of GO which increased the surface area and suppressed the recombination rate of e-/h+ pairs. © 2015 Elsevier B.V. All rights reserved.

Keyword:

Azo dyes Citrus fruits Complexation Degradation Graphene Graphene oxide High resolution transmission electron microscopy Irradiation Light Light absorption Photocatalytic activity Photodegradation Scanning electron microscopy Silver compounds

Community:

  • [ 1 ] [Li, Jiade]School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi Province; 341000, China
  • [ 2 ] [Wei, Longfu]School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi Province; 341000, China
  • [ 3 ] [Yu, Changlin]School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi Province; 341000, China
  • [ 4 ] [Yu, Changlin]School of Environment Engineering and Biology Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong Province; 525000, China
  • [ 5 ] [Fang, Wen]School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi Province; 341000, China
  • [ 6 ] [Fang, Wen]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou; 350002, China
  • [ 7 ] [Xie, Yu]School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi Province; 341000, China
  • [ 8 ] [Xie, Yu]College of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang, Jiangxi; 330063, China
  • [ 9 ] [Zhou, Wanqin]School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi Province; 341000, China
  • [ 10 ] [Zhu, Lihua]School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi Province; 341000, China

Reprint 's Address:

  • [yu, changlin]school of metallurgy and chemical engineering, jiangxi university of science and technology, ganzhou, jiangxi province; 341000, china;;[yu, changlin]school of environment engineering and biology engineering, guangdong university of petrochemical technology, maoming, guangdong province; 525000, china

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Source :

ISSN: 0169-4332

Year: 2015

Volume: 358

Page: 168-174

Language: English

3 . 1 5

JCR@2015

6 . 3 0 0

JCR@2023

ESI HC Threshold:335

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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