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Hydrogen evolution by a low cost photocatalyst: Bauxite residue

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Title Hydrogen evolution by a low cost photocatalyst:
Bauxite residue
 
Creator Mangrulkar, Priti A
Joshi, Meenal V
Kamble, Sanjay P
Labhsetwar, Nitin
Rayalu, Sadhana
 
Subject Materials Science
 
Description Bauxite residue or red mud which is an aluminium industry waste has been used as a novel
low cost photocatalyst active in visible light for the generation of hydrogen from water. The
driving force behind the use of bauxite residue as a photocatalyst is not only the fact that it
is widely available but also bauxite residue is a fine grained mixture of oxides and
hydroxides (Fe2O3, TiO2, SiO2, and Al2O3, Al(OH)3). The photocatalyst was characterized
with respect to BET-SA, UV-DRS, XRD, SEM and EDX. Hydrogen yield of 4600 mmol/h/g of
TiO2 was achieved as compared to hydrogen evolution rate of 164 mmol/h/g of TiO2 for
commercially available titania Degussa P-25. However, the hydrogen evolution was
20.85 mmol/h/g of photocatalyst. The results suggest that bauxite residue appears to be
a novel low cost photocatalyst. The various operating conditions of photocatalytic
hydrogen generation were studied which include amount of catalyst, illumination intensity,
illumination time, effect of various sacrificial donors etc.
 
Publisher Elsevier
 
Date 2010-08-14
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1017/1/mangrulkar2010.pdf
Mangrulkar, Priti A and Joshi, Meenal V and Kamble, Sanjay P and Labhsetwar, Nitin and Rayalu, Sadhana (2010) Hydrogen evolution by a low cost photocatalyst: Bauxite residue. International Journal of Hydrogen Energy, 35. pp. 10859-10866. ISSN 0360-3199
 
Relation https://www.journals.elsevier.com/international-journal-of-hydrogen-energy
http://neeri.csircentral.net/1017/