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PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE AND AZURE - B OVER TiO2
IN THE PRESENCE OF INORGANIC ANIONS
PARIDHI
KATARIA, ABHILASHA JAIN, RAKSHIT AMETA, V.K. SHARMA and P.B.
PUNJABI*
Photochemistry and Solar Energy Laboratory, Department of Chemistry,
University College of Science, MLSU Udaipur (Raj.) INDIA - 313 001.
ABSTRACT
The photocatalytic degradation of methylene blue and
azure-B over titanium dioxide powder has been carried out in
presence of inorganic ions. The progress of the reaction has been
monitored spectrophotometrically. The effect of variation of
different parameters such as pH, concentration of dye, amount of
semiconductor, light intensity and concentration of various
inorganic anions has been observed on the rate of reaction. A
tentative mechanism of photodegradation for the dyes has been
proposed.
Key words :
Photocatalytic, Spectrophotometry, Methylene blue,
Azure-B.
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