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Effects of sintering of TiO2 particles on the mechanisms of photocatalytic degradation of organic molecules in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
28989 44112 2008 9 PDF Available
Title
Effects of sintering of TiO2 particles on the mechanisms of photocatalytic degradation of organic molecules in water
Abstract

Partial degradations of 4-methoxyresorcinol and p-anisyl-1-neopentyl alcohol were carried out with the PC series of photocatalysts from Millenium Chemicals and with Degussa P25. The PC series of anatase catalysts varies only in the degree of sintering, and thus particle size and type of crystal defects. The initial product distributions were not substantially sensitive to catalyst, implying that none of the major products depended on particular binding sites that could be annealed away. Rate constants varied from catalyst to catalyst, but not dramatically, on a weight-to-volume basis. Thus there was also not a direct connection between available surface area and the rate of degradation. The product distribution as a function of suspension pH is also discussed.

Keywords
Titanium dioxide; Annealing; Photocatalysis; Degradation
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Effects of sintering of TiO2 particles on the mechanisms of photocatalytic degradation of organic molecules in water
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 200, Issues 2–3, 15 December 2008, Pages 216–224
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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