Complex Transfer Reaction from ZnO to ZnS Quantum Dots Driven by Surface Anions

Roy, Shilaj ; Manna, Mihir ; Chattopadhyay, Arun (2018) Complex Transfer Reaction from ZnO to ZnS Quantum Dots Driven by Surface Anions Journal of Physical Chemistry C, 122 (18). pp. 9939-9946. ISSN 1932-7447

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Official URL: http://doi.org/10.1021/acs.jpcc.8b01228

Related URL: http://dx.doi.org/10.1021/acs.jpcc.8b01228

Abstract

This work demonstrates preferential transfer of 8-hydroxyquinoline-5-sulfonic acid (HQS) from surface of ZnO quantum dots to ZnS quantum dots in the form of Zn(QS)2 complex. This is an instance of inter quantum dot complex or Z-type ligand transfer that depends on solvent system—more precisely, solubility of the migrating complex. The migration can be explained using Langmuir model by considering two parallel adsorption equilibria on ZnO and ZnS surfaces. We also propose that higher stability of the zinc quinolato complex on ZnS surface in comparison to that of ZnO is the driving force of the reaction.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society
ID Code:135446
Deposited On:24 Jan 2023 05:33
Last Modified:24 Jan 2023 05:33

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