Colocalization of light harvesting and catalytic units in a ‘soft’ coordination polymer hydrogel toward visible-light driven photocatalytic hydrogen production

Verma, Parul ; Singh, Ashish ; Rahimi, Faruk Ahamed ; Maji, Tapas Kumar (2021) Colocalization of light harvesting and catalytic units in a ‘soft’ coordination polymer hydrogel toward visible-light driven photocatalytic hydrogen production Journal of Materials Chemistry A, 9 (23). pp. 13608-13614. ISSN 2050-7488

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Official URL: http://doi.org/10.1039/D1TA02425F

Related URL: http://dx.doi.org/10.1039/D1TA02425F

Abstract

Colocalization of essential molecular components in a solvated soft supramolecular assembly towards realizing visible-light-driven hydrogen evolution would be an exciting approach for sustainable energy by generating clean solar fuel. In this study, we report the preparation and characterization of a coordination polymer gel (Zn-TPY-ANT CPG) formed by the self-assembly of Zn2+ and an anthracene–terpyridine based low molecular weight gelator (TPY-ANT LMWG). The 1D nanofibrous CPG in the hydrogel state shows the potential to perform visible-light-driven (400–750 nm) photocatalytic water reduction and produce a considerable amount of hydrogen (12.02 mmol g−1 in 22 h). Furthermore, H2 evolution can be enhanced significantly (18.03 mmol g−1 in 22 h) upon illumination with the full-range of light (290–750 nm). In this supramolecular assembly, the ANT unit acts as a light-harvesting moiety whereas the [Zn(TPY)2]2+ center acts as a catalytic site. We believe that such a design of soft hybrid materials would have a positive impact on developing a non-precious, stable, and recyclable photocatalyst material for H2 production.

Item Type:Article
Source:Copyright of this article belongs to The Royal Society of Chemistry.
ID Code:123993
Deposited On:27 Oct 2021 05:12
Last Modified:27 Oct 2021 05:12

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