Effect of triethanolamine chelating agent on crystallinities, phase purities, and optical properties of zinc aluminate spinel synthesized by thermal decomposition
1
Issued Date
2022-03-15
Resource Type
ISSN
02728842
Scopus ID
2-s2.0-85121692199
Journal Title
Ceramics International
Volume
48
Issue
6
Start Page
8186
End Page
8195
Rights Holder(s)
SCOPUS
Bibliographic Citation
Ceramics International Vol.48 No.6 (2022) , 8186-8195
Suggested Citation
Pipattanaporn P., Pansiri P., Kumpeerakij P., Yaemphutchong S., Siri-apai P., Suetrong N., Chansaenpak K., Singkammo S., Kanjanaboos P., Hanlumyuang Y., Wannapaiboon S., Wattanathana W. Effect of triethanolamine chelating agent on crystallinities, phase purities, and optical properties of zinc aluminate spinel synthesized by thermal decomposition. Ceramics International Vol.48 No.6 (2022) , 8186-8195. 8195. doi:10.1016/j.ceramint.2021.12.021 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/84098
Title
Effect of triethanolamine chelating agent on crystallinities, phase purities, and optical properties of zinc aluminate spinel synthesized by thermal decomposition
Other Contributor(s)
Abstract
Zinc aluminates form a niche class of ceramics, which are useful in various applications, including photoelectronic devices, catalysts, and high efficacy optical materials. Selecting appropriate starting precursors is the key impertive to control synthetic parameters in ceramics syntheses for the improvement of phase purity and corresponding physicochemical properties. The current study reports the successful preparation of high crystallinity and purity of ZnAl2O4 via thermal decomposition of the metal complex precursor using triethanolamine (TEA) as the additive and chelating agent. The effects of calcination temperatures and the existence of TEA on the formation of the desired ZnAl2O4 and the suppression of ZnO impurity are thoroughly investigated. Herein, the correlation between the in-depth analysis of the thermal decomposition profile of the mixed metal-TEA precursor and the characteristic features of the obtained ZnAl2O4 product are highlighted. The variation of optical bandgap energy of the derived materials by controlling the structural defects via a variation of synthetic parameters is explored. The obtained results show strong evidence that the ZnAl2O4 powders derived from the thermal decomposition of the mixed metal-TEA precursor are superior in terms of crystallinity, phase purity, and optical properties to those without using the TEA chelating agent.