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Issue 7, 2018
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γ-Radiolysis preparation of nanometer-sized cadmium sulphide quantum dots stabilized in nanozeolite X and ZSM-5

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Abstract

The radiolytic preparation of CdS nanoparticles stabilized in colloidal zeolites is presented. Nanosized zeolites with different structural frameworks, i.e. FAU and MFI, are used as host materials for the stabilization of different amounts of Cd2+. The colloidal zeolites are stabilized in ethanol and then subjected to γ-irradiation in the presence of mercaptoethanol to generate HS anions that diffuse and react with Cd2+ to form CdS. The growth of the CdS nanoparticles is supported by the results of UV-vis absorption and emission spectroscopy. The formation of CdS is mostly limited by the total irradiation dose, and the size of the CdS NPs can be controlled; thus, small isolated CdS oligomers to larger interconnected clusters with tunable optical properties can be formed.

Graphical abstract: γ-Radiolysis preparation of nanometer-sized cadmium sulphide quantum dots stabilized in nanozeolite X and ZSM-5

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Publication details

The article was received on 12 Feb 2018, accepted on 26 Feb 2018 and first published on 26 Feb 2018


Article type: Paper
DOI: 10.1039/C8NJ00730F
Citation: New J. Chem., 2018,42, 5465-5470
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    γ-Radiolysis preparation of nanometer-sized cadmium sulphide quantum dots stabilized in nanozeolite X and ZSM-5

    V. De Waele, A. Souici, K. Wong, S. Mintova and M. Mostafavi, New J. Chem., 2018, 42, 5465
    DOI: 10.1039/C8NJ00730F

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