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Chloride ion: A promising hole scavenger for photocatalytic hydrogen generation

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Title Chloride ion: A promising hole scavenger for
photocatalytic hydrogen generation
 
Creator Girivyankatesh Hippargi, Girivyankatesh Hippargi
Mangrulkar, Priti
Chilkalwar, Anushree
Labhsetwar, Nitin
Rayalu, Sadhana
 
Subject Waste Utilization
Chemistry, Chemical Technology
Energy Sources
Water Treatment
Materials Science
 
Description The investigation pertains to elucidation of promising role of in-situ chloride ions generated
during the photoreduction of HAuCl4 as an internal sacrificial donor for photocatalytic
hydrogen generation. The hydrogen evolution rate (HER) observed was 4.16 mmol h�1 using
in-situ route of photocatalyst formation which is significantly higher than the conventional
route of formation of recovered photocatalyst. This unreported and unprecedented
enhancement is explained on the basis of role of chloride ions released from the gold
precursor. Experimental data inferring the effect of chloride ions on photocatalytic
hydrogen generation using AueTiO2 are also briefly explained. The role of anionic sacrificial
donors suggests several potential possibilities for their applications in photocatalysis
considering their presence in wastewater as well as their low cost and abundant availability.
The work also introduces one-step photodeposition and hydrogen generation
process against traditional recovered photocatalyst, wherein the catalysts were prepared
first by normal route of photodeposition, recovered and then employed for hydrogen
generation.
 
Publisher Elsevier
 
Date 2018
 
Type Article
NonPeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1127/1/chloride%20ion%20a%20promising%20hole%20scanvenger%20for%20photocatalytic%20water%20splitting.pdf
Girivyankatesh Hippargi, Girivyankatesh Hippargi and Mangrulkar, Priti and Chilkalwar, Anushree and Labhsetwar, Nitin and Rayalu, Sadhana (2018) Chloride ion: A promising hole scavenger for photocatalytic hydrogen generation. International Journal of Hydrogen Energy, 43. pp. 6815-6823. ISSN 0360-3199 (In Press)
 
Relation https://www.journals.elsevier.com/international-journal-of-hydrogen-energy
http://neeri.csircentral.net/1127/