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Superfine and closely-packed TiO2/Bi2O3 lamination on graphene nanoplates with high photocatalytic activity

Paper ID Volume ID Publish Year Pages File Format Full-Text
50156 46783 2014 5 PDF Available
Title
Superfine and closely-packed TiO2/Bi2O3 lamination on graphene nanoplates with high photocatalytic activity
Abstract

•Superfine and closely-packed nanoparticles controlled on graphene•TiO2/Bi2O3 lamination covered on GR assisted with fine control of pH•Multivariate effect on activity and growth mechanism analysis were given in detail.•High photocatalytic activity for RhB both in UV light and visible light

Graphene/TiO2–Bi2O3 nanohybrids were synthesized by one-step PAA-assisted hydrothermal method with a low-temperature treatment. Their morphology, structure and photocatalytic property were investigated accordingly. The SEM and TEM results showed that the nanohybrids composed of TiO2 and Bi2O3 nanoparticles with the size of about 10 nm were uniformly covered on the graphene sheets. Furthermore, the resultant samples presented excellent photocatalytic activity for RhB and recycle property, in which 95% RhB was degraded within 10 min and a good activity was maintained in the seven recycling tests, besides the hybrids also possess good activity in visible light. The enhancement of photocatalytic activity is attributed to efficient transfer of the photogenerated electrons from the CB of semiconductor nanoparticles to graphene and the homogeneity of nanoparticles.

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Keywords
Bi2O3/TiO2 lamination; Graphene; Nanohybrids; Photocatalytic property
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Superfine and closely-packed TiO2/Bi2O3 lamination on graphene nanoplates with high photocatalytic activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 46, 10 February 2014, Pages 61–65
Authors
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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
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Full-text PDF Download
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Any Questions? feel free to contact us