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Preparation and photocatalytic activity of TiO2–carbon surface composites by supercritical pretreatment and sol–gel process

Paper ID Volume ID Publish Year Pages File Format Full-Text
51907 46858 2008 5 PDF Available
Title
Preparation and photocatalytic activity of TiO2–carbon surface composites by supercritical pretreatment and sol–gel process
Abstract

TiO2–carbon surface composites (TCS) were prepared by supercritical pretreatment and then sol–gel process. The key factors affecting the methylene blue (MB) oxidation efficiency were investigated, including the initial concentration of MB, the pH value and the catalysts concentration. The results show that TCS have higher degradation efficiency than pure TiO2 and TiO2–carbon composites (TC) prepared by sol–gel process. The optimal conditions were a MB concentration of 20 mg/l at pH 6 with TCS concentration of 2.5 g/l for the fastest rate of MB degradation. Total organic carbon (TOC) analysis indicates complete mineralisation of MB.

Keywords
Titania; Carbon surface; Supercritical; Sol–gel process; Methylene blue; Degradation
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Preparation and photocatalytic activity of TiO2–carbon surface composites by supercritical pretreatment and sol–gel process
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 7, 1 April 2008, Pages 1583–1587
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