Journal
CATALYSIS COMMUNICATIONS
Volume 18, Issue -, Pages 16-20Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2011.11.008
Keywords
Heterogeneous photocatalysis; Graphene; Titania; Silica; Ordered mesoporous material
Categories
Funding
- National Natural Science Foundation of China [20765003, 21165013]
- Natural Science Foundation of Jiangxi Province, China [2010GZH0112]
- Scientific and Technological Project of Jiangxi Province, China [2010BSB03100]
- Nanchang Hangkong University, China [EA201002219]
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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. (C) 2011 Elsevier B.V. All rights reserved.
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