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Microwave-assisted synthesis of high purity β-tricalcium phosphate crystalline powder from the waste of Green mussel shells (Perna canaliculus)

par Shavandi, Amin ;Bekhit, Alaa El-Din;Ali, Azam;Sun, Zhifa;Ratnayake, Jithendra Tharanga B.
Référence Powder technology, 273, page (33-39)
Publication Publié, 2015

Article révisé par les pairs

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Résumé :

Beta-tricalcium phosphate (β-TCP) was successfully synthesized using the waste of Green mussel shells, Perna canaliculus. Calcined mussel shells and phosphoric acid were mixed in 1.5 Ca/P molar ratio and subjected to microwave irradiation (1100. W) for 30. min and subsequently calcined at 750. °C. The synthesized powder was chemically, compositionally and structurally characterized and was found to be very similar to a commercial β-TCP. Furthermore, the obtained powder was stable up to 1000. °C and lost only 2% of its weight. Its toxic metallic contents (e.g. Cd, Pb and As) were lower than standard limits for biogenic calcium phosphate for medical application. The synthesized β-TCP powder shows spherical morphology having diameter in the range of 100-150. nm and Ca/P molar ratio of 1.49, which is close to the stoichiometric ratio. The results obtained in this study showed that pure β-TCP can be produced from waste mussel shells in a simple and fast way using microwave irradiation. © 2014 Elsevier B.V.