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Surfactant assisted self-assembly of Ag+ containing nanocrystals and their facet dependent photocatalytic activity

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Abstract

This work demonstrates a general route for synthesis of nanocatalysts containing silver ions using surfactants. A non-ionic surfactant Tween 80 has been used to initiate the nucleation and thereafter control the growth of silver nitroprusside (SINP) and silver phosphate (Ag3PO4) nanoparticles. Hexamine was added to study the influence of basic media on particle growth. Ag3PO4 nanoparticles with a size distribution of 30–50 nm and SINP nanoparticles with a size distribution of 30–40 nm have been obtained. A leaf-like morphology with exposed (11−1) and (022) facets has been obtained in nano SINP treated with hexamine. Evaluation of the Mulliken atomic charges by TDDFT calculations revealed maximum negative charge in the FeC5N cluster thus confirming its maximum localization of charges owing to the MLCT effect. The photocatalytic and electrocatalytic properties of the developed samples have been evaluated to establish the benefits of facet-tuning in nanoparticles. Thus the novelty of this work lies in the facet engineering of a coordinated metal complex (SINP) harnessing the MLCT effect to optimize photocatalytic activity.

Graphical abstract: Surfactant assisted self-assembly of Ag+ containing nanocrystals and their facet dependent photocatalytic activity

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Publication details

The article was received on 12 Sep 2018, accepted on 14 Nov 2018 and first published on 15 Nov 2018


Article type: Communication
DOI: 10.1039/C8CE01563E
Citation: CrystEngComm, 2019, Advance Article
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    Surfactant assisted self-assembly of Ag+ containing nanocrystals and their facet dependent photocatalytic activity

    S. Rahut, S. S. Basu and J. K. Basu, CrystEngComm, 2019, Advance Article , DOI: 10.1039/C8CE01563E

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