Hydrothermal synthesis of carbon microspheres from sucrose with citric acid as a catalyst: physicochemical and structural properties

Sulistya, Erick, Hui-Hui, Lim, Attenborough, Nicole K., Pourshahrestani, Sara, Kadri, Nahrizul Adib, Zeimaran, Ehsan, Razak, Nasrul Anuar bin Abd, Amini Horri, Bahman and Salamatinia, Babak (2020) Hydrothermal synthesis of carbon microspheres from sucrose with citric acid as a catalyst: physicochemical and structural properties Journal of Taibah University for Science, 14 (1). pp. 1042-1050.

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Abstract

The production of size-tunable Carbon microspheres (CMSs) from cheaply available materials using an environmentally friendly technique is highly appreciated. In this study, size-tunable CMSs were hydrothermally synthesized at 190°C using sucrose as carbon source, and citric acid as a catalyst. The effect of varying citric acid concentration on the size of the microspheres was investigated. Results indicated that under similar hydrothermal conditions, variation in the concentration of citric acid between 0 and 5 wt.% increased the size of CMSs ranging from 3.12 to 11.2 μm, as evidenced by SEM and particle size analyzer. TGA confirmed the purity of the carbonaceous particles in a single-step degradation with the presence of D-band and G-band in Raman spectra. FTIR and elemental analyzer confirmed the presence of hydrophilic oxygen functionalities such as –OH, –C=O, and COOH on the surface of CMSs. This study opens a novel and straightforward approach to produce size-tunable CMSs with functional groups.

Item Type:	Article
Divisions :	Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :	Name Email ORCID Sulistya, Erick Hui-Hui, Lim Attenborough, Nicole K. Pourshahrestani, Sara Kadri, Nahrizul Adib Zeimaran, Ehsan Razak, Nasrul Anuar bin Abd Amini Horri, Bahman b.aminihorri@surrey.ac.uk Salamatinia, Babak
Date :	31 July 2020
Funders :	Ministry of Science and Technology
DOI :	10.1080/16583655.2020.1794566
Grant Title :	Ministry of Science and Technology
Copyright Disclaimer :	© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Uncontrolled Keywords :	Carbon microspheres; hydrothermal synthesis; sucrose; citric acid
Additional Information :	Embargo OK Metadata OK No Further Action
Depositing User :	James Marshall
Date Deposited :	12 Aug 2020 14:07
Last Modified :	12 Aug 2020 14:07
URI:	http://epubs.surrey.ac.uk/id/eprint/858396

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