Dong, Y., Liu, Z., Ning, Y. orcid.org/0000-0003-1808-3513 et al. (2 more authors) (2022) Occlusion of diblock copolymer-modified gold nanoparticles generates diabolo-shaped Au@ZnO nanocomposite crystals with enhanced photocatalytic properties. Chemistry of Materials, 34 (7). pp. 3357-3364. ISSN 0897-4756
Abstract
Double-hydrophilic diblock copolymers have been extensively used as additives to tune the growth of inorganic crystals in aqueous media. However, there have been no reports of how double-hydrophilic diblock copolymer-decorated nanoparticles influence the morphology, structure, and properties of such crystals. Herein, a well-defined poly(ammonium 2-sulfatoethyl methacrylate)-poly(glycerol monomethacrylate) diblock copolymer is prepared by reversible addition-fragmentation chain transfer polymerization and then adsorbed onto the surface of gold nanoparticles via its dithiobenzoate end-group to form sterically stabilized nanoparticles. The growth of zinc oxide (ZnO) crystals in the presence of such nanoparticles leads to their occlusion, producing Au@ZnO nanocomposite crystals with a remarkable diabolo morphology. Furthermore, such Au@ZnO crystals enable the rapid photocatalytic degradation of a model organic dye (rhodamine B) when subjected to visible light irradiation. This study opens up a new avenue for the design of diblock copolymer-stabilized nanoparticles to enable the construction of organic–inorganic nanocomposite crystals that exhibit emergent properties.
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Copyright, Publisher and Additional Information: | © 2022 American Chemical Society. This is an author-produced version of a paper subsequently published in Chemistry of Materials. Uploaded in accordance with the publisher's self-archiving policy. | ||||
Keywords: | Crystals; Metal nanoparticles; Metal oxide nanoparticles; Nanoparticles; Oxides | ||||
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Chemistry (Sheffield) | ||||
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 07 Feb 2023 14:35 | ||||
Last Modified: | 04 Apr 2023 00:13 | ||||
Status: | Published | ||||
Publisher: | American Chemical Society (ACS) | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1021/acs.chemmater.2c00161 | ||||
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