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Antibacterial and photocatalytic performance of Silver orthophosphate/Hydroxyapatite composite

Ahmed El yacoubi, Brahim Chafik El idrissi, Amine Rkhaila, Brahim Sallek

Abstract


The present work reports the synthesis of pure hydroxyapatite and HAp supported Ag3PO4 (Ag3PO4/HAp composites) with varying amounts of silver ions Ag+ with a facile in-situ ion exchange method. XRD results of Ag3PO4/HAp composite reveal the peaks characteristic of pure HAp with additional peaks of silver ions which suggest the deposit of silver particles on the support surface (HAp). The nano-composites Ag3PO4/HAp samples show good adsorption and improved photocatalytic activities in methylene blue MB degradation (more than 70%). Antibacterial study of Ag3PO4/HAp nano-composites showed that the HAp dried at 90°C possesses some antibacterial activity against Escherichia coli and Staphylococcus aureus bacteria. Also, compared to HAp sample, deposition of Ag3PO4 nanoparticles on HAp surface improves the antibacterial performance of the composites.


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DOI: http://dx.doi.org/10.13171/mjc841906173ae

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