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Solar assisted
photo-catalytic degradation of amido black 10B over cobalt,
nickel and zinc metalloporphyrins
A. V. Salker* and S. D.
Gokakakar
Department of Chemistry, Goa University, Goa-403 206, India.
*Corresponding author. E-mail:
avsalker@gmail.com.Tel.:
(O) +91-832-6519315. Fax: +91-832-2451184.
Accepted
1 April, 2009. |
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The
tetraphenyl porphyrins (TPP) and metalloporphyrins such as
CoTPP, NiTPP and ZnTPP were synthesized, purified and
characterized by UV-Visible spectroscopy, IR spectroscopy,
1H NMR
spectroscopy and elemental analysis. The results have been
discussed in the light of magnetic susceptibility; diffuse
reflectance spectroscopy (DRS), electron spin resonance (ESR),
X-ray diffraction data and solar assisted photodegradation.
The semi conducting properties of these porphyrins were
employed for trapping the solar radiations for the
photodegradation of azo dye such as Amido Black 10B at
different pH conditions. This reaction was studied as a
model reaction for finding the photoactivity of these
compounds.
Key
words:
Metalloporphyrins, metal organic semiconductors,
photocatalytic activity, solar assisted photodegradation,
amido black 10B. |
