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Title: Photodegradation of malachite green in the aqueous medium
Authors: Hasnat, M A
Siddiquey, I A
Saiful, Islam S M
Issue Date: Aug-2003
Publisher: NISCAIR-CSIR, India
Abstract: TiO2 assisted photodegradation of malachite green (MG) has been examined in TiO2 dispersions under both UV and visible light and found that degradation is faster in UV-light (λ 320nm). Adsorption is prerequisite for the TiO2 assisted photodegradation and the extent of degradation have been discussed in terms of the Langmuir-Hinshelwood model. Like most semiconductors the photocatalytic nature of TiO2 is pH dependent because of its amphoteric nature. It has been found that pH ranging from 3-5 is suitable for the photodegradation of this system.
Page(s): 1865-1867
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.42A(08) [August 2003]

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