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Iron-based Spiky Microspheres Synthesized Using Oxalate Via One-Step Hydrothermal Process – Presence of Humboldtine

Lookup NU author(s): Professor Chun Yang Yin

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Abstract

© 2024 World Scientific Publishing Company.In this study, novel iron-based spiky microparticles (approximately 1-2 μm in diameter) were synthesized using iron oxalate precursors using a straightforward one-step hydrothermal reaction. The microparticles' morphological, mineralogical and chemical properties were investigated using scanning electron microscopy (SEM), X-ray diffractometry (XRD), Raman spectroscopy and UV-Vis spectroscopy. The physico-chemical characteristics of spiky microparticles were also compared with cubic iron microparticles synthesized using standalone iron as well as with the addition of glycine. XRD and Raman analyses identified substantial presence of humboldtine, a type of ferrous oxalate dehydrate mineral, in the resultant yellowish solid hydrothermal product. The mechanism involving reactions of species in the hydrothermal process was described herein. The results described in this study afford vital insights into the design of iron oxalate-based microparticles synthesis processes.

Publication metadata

Author(s): El-Harbawi M, Yin C-Y, Alrashed MM, Alhawtali S, El Blidi L, Alshabebi AS, Jiang Z-T

Publication type: Article

Publication status: Published

Journal: Surface Review and Letters

Year: 2024

Pages: epub ahead of print

Online publication date: 23/08/2024

Acceptance date: 05/07/2024

ISSN (print): 0218-625X

ISSN (electronic): 1793-6667

Publisher: World Scientific

URL: https://doi.org/10.1142/S0218625X25500234

DOI: 10.1142/S0218625X25500234

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