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Thermal decomposition synthesis of nanorods bismuth sulphide from bismuth N-ethyl cyclohexyl dithiocarbamate complex


Citation

Abdullah, Nurul Hidayah and Zainal, Zulkarnain and Silong, Sidik and Mohamed Tahir, Mohamed Ibrahim and Kar, Ban Tan and Sook, Keng Chang (2016) Thermal decomposition synthesis of nanorods bismuth sulphide from bismuth N-ethyl cyclohexyl dithiocarbamate complex. Thermochimica Acta, 632. pp. 37-45. ISSN 0040-6031

Abstract / Synopsis

Nanorods of bismuth sulphide were prepared by thermal decomposition of bismuth N-ethyl cyclohexyl dithiocarbamate at different calcination duration. X-ray diffraction (XRD) analysis shows that at 400 °C, the precursor was fully decomposed to orthorhombic bismuth sulphide after 2 h of calcination. Besides, calcination duration does not affect the existence of Bi2S3 phase. Field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) analyses reveal that Bi2S3 nanorods with an average width ranging from 29–36 nm were obtained. Energy dispersive X-ray (EDX) analysis confirmed the atomic ratio of Bi and S close to 2:3, giving a possible composition of Bi2S3. Direct band gap energy of Bi2S3 decreases from 1.83 eV to 1.54 eV as calcination time increases.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.1016/j.tca.2016.03.001
Publisher: Elsevier BV
Keywords: Semiconductors; Heat treatment; Nanostructures; Electron microscopy (TEM and SEM)
Depositing User: Nida Hidayati Ghazali
Date Deposited: 31 Oct 2017 02:40
Last Modified: 31 Oct 2017 02:40
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.tca.2016.03.001
URI: http://psasir.upm.edu.my/id/eprint/53120
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