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Type: Journal article
Title: Synthesis of magnetically separable Fe₃O₄-Au-CdS kinked heterotrimers incorporating plasmonic and semiconducting functionalities
Other Titles: Synthesis of magnetically separable Fe(₃)O(₄)-Au-CdS kinked heterotrimers incorporating plasmonic and semiconducting functionalities
Author: Javaid, S.
Li, X.
Wang, F.
Chen, W.
Pang, Y.
wang, S.
Jia, G.
Jones, F.
Citation: Journal of Materials Chemistry C, 2019; 7(46):14517-14524
Publisher: Royal Society of Chemistry
Issue Date: 2019
ISSN: 2050-7534
Statement of
Shaghraf Javaid, Xiaojie Li, Fei Wang, Wei Chen, Yingping Pang, Shaobin Wang, Guohua Jia and Franca Jones
Abstract: Dimension, composition and configuration are the primary aspects of semiconductor based hybrid heterostructures that govern their properties. To achieve desired functionalities within a single nanoparticle system, numerous synthetic approaches are available which may be suitable for achieving the target combination but these can be complex and tedious. In this work, a simple seeded-growth approach was employed to obtain an iron oxide–gold–cadmium sulfide (Fe₃O₄–Au–CdS) heterotrimer with a unique morphology manifesting magnetic, plasmonic and semiconducting properties. In a straightforward two-step synthesis process, Au–Fe₃O₄ dimer was injected as a seed into the Cd precursor solution for the growth of one-dimensional (1D) kinked CdS-5 nanorods on it. The synthesized Fe₃O₄–Au–CdS heterotrimer was tested in photocatalytic water-reduction reaction, revealing its potential as a photocatalyst for the hydrogen evolution reaction (HER), where each domain within the heterotrimer played a distinct role including light absorption, charge separation and magnetic separation. A post-synthetic modification on the semiconductor part was also performed where kinked CdS nanorod was cation exchanged with Ag₂S leading to the formation of another heterotrimer of Fe₃O₄–Au–Ag₂S while retaining the same morphology and expanding the palette of heterotrimers.
Rights: This journal is © The Royal Society of Chemistry 2019
DOI: 10.1039/c9tc03538a
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