fulltext.study @t Gmail

Synthesis and assessment of a graphene-based composite photocatalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
2784 135 2015 7 PDF Available
Title
Synthesis and assessment of a graphene-based composite photocatalyst
Abstract

•Graphene support increases the photocatalytic activity of TiO2.•P25/graphene presented increased activity for NO deep oxidation under UV.•P25/graphene presented increased photoinactivation under visible light.

A novel composite photocatalyst prepared from graphene and commercial TiO2 (P25 from Evonik) was synthesized, exhibiting enhanced photocatalytic activity for methylene blue degradation, when compared with pristine P25. Additionally, the new catalyst showed 20% more NO conversion under UV light than P25. The band gap of the catalyst, obtained from diffuse reflectance, was 2.95 eV indicating an extended light absorption up to 420 nm. The novel photocatalyst was further tested for inactivating microorganisms showing better results than the reference photocatalyst. Under visible light, the viability loss of the reference bacterial strain Escherichia coli DSM 1103 was two times higher than with the bare P25; it was observed 29% of inactivation with the P25/graphene composite and 14% with the P25 sample, following standard ISO 27447:2009.

Keywords
P25/graphene; Photoinactivation; Adsorption; Environmental preservation; Global environment; Heterogeneous reaction
First Page Preview
Synthesis and assessment of a graphene-based composite photocatalyst
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: Biochemical Engineering Journal - Volume 104, 15 December 2015, Pages 20–26
Authors
, , , , , ,
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