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Simulated sunlight photodegradation of aqueous atrazine and rhodamine B catalyzed by the ordered mesoporous graphene–titania/silica composite material

Paper ID Volume ID Publish Year Pages File Format Full-Text
50071 46779 2012 5 PDF Available
Title
Simulated sunlight photodegradation of aqueous atrazine and rhodamine B catalyzed by the ordered mesoporous graphene–titania/silica composite material
Abstract

Ordered mesoporous graphene–titania/silica composite material was prepared using a direct sol–gel co-condensation technique, and combined with hydrothermal treatment, in the presence of a triblock copolymer non-ionic surfactant P123 (EO20PO70EO20, EO = OCH2CH2, PO = OCH(CH3)CH2). The composite exhibited a two-dimensional (2D) hexagonal p6mm symmetry and anatase-phase structure with a large BET (Brunauer–Emmet–Teller) surface area and uniform pore size. The photocatalytic activity of the graphene–titania/silica composite was evaluated through the degradation of the aqueous organic pollutant atrazine and rhodamine B under solar-simulating Xe lamp irradiation. Enhanced photocatalytic activity compared with pure titania was obtained for the graphene–titania/silica sample.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights►Ordered mesoporous Graphene–TiO2/SiO2 was prepared by surfactant-templating strategy. ►The morphology, porosity, and composition of the composite were well characterized. ►The photocatalytic activity was evaluated through the degradation of atrazine and RB. ►Enhanced photocatalytic activity compare with TiO2 was obtained for the composite.

Keywords
Heterogeneous photocatalysis; Graphene; Titania; Silica; Ordered mesoporous material
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Simulated sunlight photodegradation of aqueous atrazine and rhodamine B catalyzed by the ordered mesoporous graphene–titania/silica composite material
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 18, 10 February 2012, Pages 16–20
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us