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|Title:||Titania based catalysts for photoreduction of carbon dioxide: Role of modifiers|
Krishnamurthy, K R
|Keywords:||Photocatalysts;Photoreduction;Carbon dioxide photoreduction;Photophysical properties;Titania;Solar energy|
The objectives towards modifications, namely, extending the light absorption range, retarding charge carrier re-combination, facilitating their fast transport to the active sites on titania surface and incorporation of active elements suitable for redox reactions, have been achieved to a reasonable level. However, commensurate improvement in activity/CO2 conversion has not been observed. Maximization of selectivity (to methane or methanol) and arresting catalyst deactivation are the two major issues yet to be understood in clear terms. An in-depth study to understand the surface transformations at molecular level under activation by light energy, is needed to achieve further improvements in the activity of the catalysts and the process. This review brings forth an account of the investigations on modified titania, capturing some significant and selected contributions out of the vast literature available, with an emphasis on application for photocatalytic reduction of CO2 with water.
|Appears in Collections:||IJC-A Vol.51A(09-10) [September-October 2012]|
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|IJCA 51A(9-10) 1263-1283.pdf||751.03 kB||Adobe PDF||View/Open|
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