Enhanced Photocatalytic Degradation of Aqueous Nitrobenzene Using Graphitic Carbon-TiO2 Composites

Title
Enhanced Photocatalytic Degradation of Aqueous Nitrobenzene Using Graphitic Carbon-TiO2 Composites
Author(s)
원양수조완근[조완근]황인규Tayade[Tayade]
Keywords
TITANIUM-DIOXIDE; VISIBLE-LIGHT; NANOCRYSTALLINE TIO2; CATALYTIC OZONATION; POLYURETHANE FOAM; BIOTRANSFORMATION; EFFICIENCY; PARTICLES; OXIDATION; POWDERS
Issue Date
201403
Publisher
AMER CHEMICAL SOC
Citation
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.53, no.9, pp.3455 - 3461
Abstract
Graphitic carbon-TiO2 nanocomposites with different carbon loadings were synthesized by a one-pot hydrothermal method. The prepared catalysts were characterized by X-ray diffractometry (XRD), scanning electron microscopy, UV-vis diffuse reflectance spectrophotometry, and Brunauer-Emmett-Teller surface area analysis. The XRD results confirmed the presence of graphite in the composite without alteration of the TiO2 structure. The photocatalytic efficiencies of the synthesized composites were determined by the degradation of aqueous nitrobenzene (NB) under UV irradiation. Because of the presence of graphitic carbon in the composite, there was an increase in the adsorption of NB (24%) on the composite surface, which led to a higher photocatalytic yield (up to 96% in 4 h at a graphitic carbon content of 1%). NB degradation was corroborated by chemical oxygen demand determinations.
URI
http://hdl.handle.net/YU.REPOSITORY/32874http://dx.doi.org/10.1021/ie500245d
ISSN
0888-5885
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공과대학 > 환경공학과 > Articles
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