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Effect of microemulsion composition on textural and photocatalytic activity of titania nanomaterial

Paper ID Volume ID Publish Year Pages File Format Full-Text
44038 46000 2006 7 PDF Available
Title
Effect of microemulsion composition on textural and photocatalytic activity of titania nanomaterial
Abstract

Nanosized titania powders were synthesized by the reverse microemulsion (water/CTAB-butanol/cyclohexane) process varying the water content in the range of 5–30 wt.%. Materials were characterized by TEM, XRD, FT-IR, DRS, BET surface area measurement. Average crystallite size, particle size and anatase to rutile ratio was correlated with the photocatalytic decomposition of 4-nitropheol and hexavalent chromium reduction. Photocatalytic activity was evaluated by varying the pH, time of reaction, catalyst amount, etc. in aqueous phase. Highest hexavalent chromium reduction and decomposition of 4-nitrophenol was observed with the titania derived from the microemulsion having 15 wt.% of water. Prepared catalysts were found to be active in presence of sunlight.

Keywords
Microemulsion; Particle size; 4-Nitrophenol; Photodecomposition; Photoreduction; Hexavalent chromium
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Effect of microemulsion composition on textural and photocatalytic activity of titania nanomaterial
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 310, 17 August 2006, Pages 183–189
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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