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One-step microwave-assisted synthesis of Ag/ZnO/graphene nanocomposites with enhanced photocatalytic activity

Paper ID Volume ID Publish Year Pages File Format Full-Text
25857 43894 2015 6 PDF Available
Title
One-step microwave-assisted synthesis of Ag/ZnO/graphene nanocomposites with enhanced photocatalytic activity
Abstract

•Ag/ZnO/graphene nanocomposites were synthesized by a microwave-assisted method.•Synthesized catalyst showed enhanced photocatalytic performance.•Photocatalytic performance of samples with different graphene content was studied.•Ag/ZnO/graphene nanocomposites exhibited excellent photostability.

Ag/ZnO/graphene (Ag/ZnO/G) nanocomposites were successfully synthesized by a facile low-temperature microwave-assisted solution method. The morphology and phase structure of the prepared samples were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The photocatalytic performance of the obtained products were evaluated by analyzing the degradation of methyl orange (MO) solution under UV irradiation. The Ag/ZnO/graphene nanocomposites showed higher photocatalytic efficiency than ZnO or Ag/ZnO. Photocatalytic activity of Ag/ZnO/graphene nanocomposites with different graphene content was studied. Firstly the photocatalytic efficiency of the Ag/ZnO/graphene nanocomposites increased with the increase of graphene oxide (GO) content from 0 to 1%, then the photocatalytic efficiency decreased while the percent of GO addition reached 2%. The photostability testing of the Ag/ZnO/graphene nanocomposites with 1% GO content showed that the catalyst has excellent photocatalytic activity and photostability for the degradation of MO. It is believed that this facile, rapid microwave-assisted strategy is scalable and can be applied to synthesize other metal/semiconductor oxide/graphene nanocomposites for different applications in different fields.

Keywords
Composite; Microwave-assisted; Ag/ZnO/graphene; Photocatalytic activity
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One-step microwave-assisted synthesis of Ag/ZnO/graphene nanocomposites with enhanced photocatalytic activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 302, 1 April 2015, Pages 17–22
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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