Growth Kinetics of Zinc Sulphide Nanocrystals Synthesized by Colloidal Thermolysis of Fatty Acid Carboxylates

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dc.contributor.authorMensah, Michael Baah
dc.contributor.authorBoadi, Nathaniel O.
dc.contributor.authorAwudza, Johannes A. M.
dc.contributor.orcid0000-0002-8080-4812
dc.date.accessioned2024-07-16T10:01:21Z
dc.date.available2024-07-16T10:01:21Z
dc.date.issued2022
dc.descriptionThis article is already published by Hindawi and is also available at https://doi.org/10.1155/2022/9384592
dc.description.abstractZinc sulphide (ZnS) is an important semiconductor with widespread electronic and catalytic applications. e growth kinetics of ZnS nanocrystals synthesized by the thermal decomposition of zinc ricinoleate carboxylates in an oleylamine:dodecanethiol (1 :1) solvent mixture isreported. Crystalline sphalerite ZnS nanocrystals with quantum dot sizes of 2.3–5.3 nm were obtained at temperatures higher than 240° C. e p-XRD patterns showed a clear relationship between the crystallite sizes and the peak broadness at a temperature range of 250–300°C. e optical bandgap energies of the ZnS nanocrystals reduced from 4.27 eV to 3.73 eV as the time of reaction increased from 20 to 60 min at 250°C. e activation energy for the growth kinetics of the ZnS nanocrystals was determined to be 36.24 kJ/mol which compares closely to those reported in the literature for aqueous systems.
dc.description.sponsorshipKNUST
dc.identifier.citationHindawi Journal of Chemistry Volume 2022, Article
dc.identifier.uri10.1155/2022/9384592
dc.identifier.urihttps://ir.knust.edu.gh/handle/123456789/15839
dc.language.isoen
dc.publisherHindawi
dc.titleGrowth Kinetics of Zinc Sulphide Nanocrystals Synthesized by Colloidal Thermolysis of Fatty Acid Carboxylates
dc.typeArticle
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