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Synthesis of hydroxyapatite from cockle shell wastes

Siti Hajar, Saharudin and Jun Haslinda, Haji Shariffuddin and Aqeela, Ismail (2018) Synthesis of hydroxyapatite from cockle shell wastes. In: Proceedings Book: National Conference for Postgraduate Research (NCON-PGR 2018), 28-29 August 2018 , Universiti Malaysia Pahang, Gambang, Pahang. pp. 180-185.. ISBN 978-967-22260-5-5

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Cockle shell wastes are abundant and easily available. It rich in calcium carbonate (CaCO3) that can be converted into hydroxyapatite. HAP has numerous benefits especially in biomedical applications. The overall objective of this study is to determine the effect of reaction time on producing HAP derived from cockle (Anadara granosa) shells waste. There are two reaction times used in this study which are 3 h and 5 h. The processes involved in synthesizing the HAP were pre-treatment of the cockle shells, formation of CaCO3 in aragonite form, calcination of the CaCO3 to form CaO, production of Ca(OH)2 and finally reaction of the Ca(OH)2 solution with the phosphate source to obtain HAP. All samples have undergone physicochemical analyses to determine their crystallinity, purity, functional group, surface morphology and elemental compounds using X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope (SEM) and Electron Dispersive X-ray Analysis (EDX). This study found that 5 h reaction time produced powder is better HAP compared to the 3 h powder. Overall, this study proved that reaction time plays a vital role in the quality of producing HAP. Longer the reaction time has enhanced the quality of the HAP formed.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Hydroxyapatite; cockle shell; biomaterial; wet slurry precipitation; reaction time
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 13 Dec 2018 07:27
Last Modified: 24 Jul 2019 03:48
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