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Photocatalytic Degradation of Dyes and Organics with Nanosized $GdCoO_3$

Mahata, Partha and Aarthi, T and Madras, Giridhar and Natarajan, Srinivasan (2007) Photocatalytic Degradation of Dyes and Organics with Nanosized $GdCoO_3$. In: Journal of Physical Chemistry C, 111 (4). pp. 1665-1674.

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$GdCoO_3$ nanoparticles with sizes of 3, 12, and 200 nm were prepared from single source mixed-metal organic framework (MOF) precursor, $[Gd(H_2O)_3Co\{C_5N_1H_3(COO)_2\}_3]$. The photocatalytic degradation studies, carried out for the first time in the presence of nanosized $GdCoO_3$ oxides, on dyes, phenols, and substituted phenols indicate favorable activity. The intermediates formed during the photocatalytic reactions were analyzed, and possible reaction mechanisms have been proposed. The results of the present study indicate that the degradation appear to be faster in the presence of 3 nm $GdCoO_3$ compared to P-25 Degussa $TiO_2$ catalyst. The reduced formation of unwanted intermediates in the presence of $GdCoO_3$ indicates that this material would prove to be a good photocatalyst in environmental photocatalysis.

Item Type: Journal Article
Publication: Journal of Physical Chemistry C
Publisher: American Chemical Society
Additional Information: Copyright of this article belongs to American Chemical Society.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 03 Jun 2008
Last Modified: 22 Feb 2012 06:22
URI: http://eprints.iisc.ac.in/id/eprint/14136

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