NDLI: Ligand removal from CdS quantum dots for enhanced photocatalytic H<sub>2</sub> generation in pH neutral water

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Journal of Materials Chemistry A Vol - 4 Issue - 7

Journal of Materials Chemistry A Vol - 4 Issue - 6

Journal of Materials Chemistry A Vol - 4 Issue - 5

Journal of Materials Chemistry A Vol -3

Journal of Materials Chemistry A Vol -2

Journal of Materials Chemistry A Vol -1

Ligand removal from CdS quantum dots for enhanced photocatalytic H₂ generation in pH neutral water

Content Provider	Royal Society of Chemistry (RSC)
Author	Chang, Christina M. Reisner, Erwin Orchard, Katherine L. Martindale, Benjamin C. M.
Copyright Year	2016
Abstract	Ligand-free CdS quantum dots were produced by a reactive ligand stripping procedure and employed for photocatalytic H2 evolution in pH neutral solution. The rate of H2 generation of the ‘bare’ quantum dots was 175 times higher than that of the equivalent mercaptopropionic acid-capped quantum dots in the presence of a cobalt co-catalyst and Na2SO3 as a sacrificial electron donor. Under optimised conditions, a turnover number of 58 000 mol H2 per mol Co and 29 000 mol H2 per mol CdS quantum dots was achieved after 88 h of UV-free solar light irradiation (λ > 420 nm, 1 Sun intensity). Ligand removal is therefore a potent method to substantially enhance the photocatalytic performance of quantum dot systems.
Starting Page	2856
Ending Page	2862
Page Count	7
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	4
Issue Number	8
Journal	Journal of Materials Chemistry A
DOI	10.1039/c5ta04136h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Mol Co Ligand Quantum PH Cobalt Redox Turnover number Sun Quantum dot
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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