In-depth knowledge of the low-temperature hydrothermal synthesis of nanocrystalline hydroxyapatite from waste green mussel shell (Perna Viridis)

This study presents the use of a low-temperature hydrothermal method for extracting calcium sources from green mussel shell (P. Viridis) wastes and converting them into synthetic nanosized hydroxyapatite (HA). In this study, raw mussel shells were washed, pulverised, and sieved to start producing a...

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Bibliographic Details
Published in:Environmental technology 2024-05, Vol.45 (12), p.2375-2387
Main Authors: Prihanto, A., Muryanto, S., Sancho Vaquer, A., Schmahl, W.W., Ismail, R., Jamari, J., Bayuseno, A.P.
Format: Article
Language:English
Subjects:
Ammonium hydroxide
Animals
Aragonite
calcination
Calcite
Calcium
Calcium carbonate
Calcium Carbonate - chemistry
Carbonation
Crystals
Durapatite
green mussel shells
Hydrothermal crystal growth
Hydrothermal method
Hydroxyapatite
Industrial development
Low temperature
Mollusks
Nanoparticles
Perna - chemistry
Phosphoric acid
Powder
Powders
Raw materials
Roasting
Spectroscopy, Fourier Transform Infrared
Temperature
Wastes
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Summary:This study presents the use of a low-temperature hydrothermal method for extracting calcium sources from green mussel shell (P. Viridis) wastes and converting them into synthetic nanosized hydroxyapatite (HA). In this study, raw mussel shells were washed, pulverised, and sieved to start producing a fine calcium carbonate-rich powder. XRD quantitative analysis confirmed that the powder contains 97.6 wt. % aragonite. This powder was then calcined for 5 h at 900 °C to remove water, salt, and mud, yielding a calcium-rich feedstock with major minerals of calcite (68.7 wt.%), portlandite (24.7 wt.%), and minor aragonite (6.5 wt.%). The calcined powders were dissolved in aqueous stock solutions of HNO 3 and NH 4 OH before hydrothermally reacting with phosphoric acid [(NH 4 ) 2 HPO 4 ], yielding pure, nanoscale (16-18 nm) carbonated HA crystals, according to XRD, FT-IR, and SEM analyses. The use of a low-temperature hydrothermal method for a feedstock powder produced by the calcination of low-cost mussel shell wastes would be a valuable processing approach for the industry's development of large-scale hydroxyapatite nanoparticle production.
ISSN:0959-3330
1479-487X
DOI:10.1080/09593330.2023.2173087