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IJC-A Vol.50A [2011] >
IJC-A Vol.50A(02) [February 2011] >


Title: Photodegradation of carboxylic acids on Al2O3 and SiO2 nanoparticles
Authors: Karunakaran, C
Dhanalakshmi, R
Manikandan, G
Gomathisankar, P
Keywords: Photochemistry
Catalysis
Photocatalysis
Photodegradation
Nanomaterials
Oxides
Semiconductors
Electrical properties
Alumina
Silica
Issue Date: Feb-2011
Publisher: NISCAIR-CSIR, India
Abstract: Al2O3 and SiO2 nanoparticles effect photodegradation of carboxylic acids, and their photonic efficiencies are comparable to those of TiO2 P25 Degussa, TiO2 Hombikat, TiO2 anatase, TiO2 rutile, ZnO, SnO2, and ZrO2 nanosemiconductors. All the nanoparticles show sustainable photoactivity and the degradation rates increase linearly with oxalic acid-concentration and photon flux. The photonic efficiencies of degradation are in the order: formic acid > oxalic acid > acetic acid > citric acid. The mechanism of photodegradation is discussed.
Page(s): 163-170
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.50A(02) [February 2011]

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