fulltext.study @t Gmail

Influence of L-type activated carbons on photocatalytic activity of TiO2 in 4-chlorophenol photodegradation

Paper ID Volume ID Publish Year Pages File Format Full-Text
29239 44137 2007 10 PDF Available
Title
Influence of L-type activated carbons on photocatalytic activity of TiO2 in 4-chlorophenol photodegradation
Abstract

The main objective of this work is to study the influence of inorganic compounds employed in the synthesis of L-type activated carbons on photocatalytic activity of TiO2 in 4-chlorophenol photodegradation. Different activated carbons were prepared from Tabebuia pentaphyla wood impregnated with ZnCl2, H3PO4 and KOH. Activation was performed under N2 flow at 450 °C by 1 h. Results clearly indicate differences in the photoactivity of TiO2 which depends of physicochemical properties of activated carbons that are influenced by the concentration of the chemical substance. Kinetic results of 4-chlorophenol photodegradation show a synergistic effect between both solids and in certain cases the inhibition of TiO2 photoactivity. These effects have been attributed to differences in texture, topology and principally to the surface chemistry of activated carbons. Scanning electron microscopy has shown a massive aggregation of TiO2 nanoparticles on activated carbons with very acid or basic surface pH. In conclusion, the control of synthesis parameters of L-type activated carbons introduces an important enhancement in Titania's photoactivity for 4-chlorophenol photodegradation when both solids work in conjunction.

Keywords
Photocatalysis; 4-Chlorophenol; Titania; Activated carbon; Synergy
First Page Preview
Influence of L-type activated carbons on photocatalytic activity of TiO2 in 4-chlorophenol photodegradation
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 191, Issues 2–3, 25 September 2007, Pages 122–131
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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