fulltext.study @t Gmail

Facile preparation of novel graphene oxide-modified Ag2O/Ag3VO4/AgVO3 composites with high photocatalytic activities under visible light irradiation

Paper ID Volume ID Publish Year Pages File Format Full-Text
44966 46390 2016 15 PDF Available
Title
Facile preparation of novel graphene oxide-modified Ag2O/Ag3VO4/AgVO3 composites with high photocatalytic activities under visible light irradiation
Abstract

•Graphene oxide-modified Ag2O/Ag3VO4/AgVO3 composites were prepared at room temperature.•The as-prepared multi-phase composites showed multi-morphological features.•1.2 wt% GO-modified Ag2O/Ag3VO4/AgVO3 showed excellent photocatalytic activity.•GO could partially protect silver species composites from photocorrosion.

A series of graphene oxide-modified, multi-phase Ag2O/Ag3VO4/AgVO3 composites were synthesized via simple procedures at room temperature. Compared to those of pure Ag2O/Ag3VO4/AgVO3, these GO-modified composites exhibited enhanced activities during photocatalytic degradation of rhodamine B and methyl orange under visible light illumination. A study of the effect of graphene oxide (GO) addition on photocatalytic performance indicated that 1.2 wt% GO was the optimum quantity. The increased photocatalytic activities of as-prepared GO-modified composites may be attributed to the large surface area possessed by GO as well as its interactions with other species in the multi-phase Ag2O/Ag3VO4/AgVO3 composites during photocatalytic reactions under visible light illumination. From the enhancement in photocatalytic activity, it may be inferred that GO could improve the adsorption and absorption capabilities of the Ag2O/Ag3VO4/AgVO3 composites and promote the separation of electron-hole (e-h) pairs during photocatalytic reactions compared to those of composites without GO addition. Moreover, GO as a modifier was able to partially protect silver species composites from photocorrosion. A possible mechanism was proposed for the photocatalytic degradation of organic dyes on the surface of GO-modified Ag2O/Ag3VO4/AgVO3.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Multi-phase Ag2O/Ag3VO4/AgVO3; Multi-morphology photocatalyst; Graphene oxide; Visible light photocatalysis
First Page Preview
Facile preparation of novel graphene oxide-modified Ag2O/Ag3VO4/AgVO3 composites with high photocatalytic activities under visible light irradiation
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 196, 5 November 2016, Pages 1–15
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us