Antibacterial and photocatalytic performance of Silver orthophosphate/Hydroxyapatite composite

Abstract

<jats:p>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.</jats:p>

Mechanism of Action and Efficiency of Ag3PO4-Based Photocatalysts for the Control of Hazardous Gram-Positive Pathogens

“…Present data concern the Ag 3 PO 4 -HAP-25 composition (25 describes nm concentration of AgNO 3 used for the preparation of composition) [24]. Similar results concerning the activity of silver phosphorate/hydroxyapatite composition against the reference strain of S. aureus were obtained by Elyacoubi et al [25]. In both studies the pure hydroxyapatite (control) was inactive.…”

Using egg ovalbumin to synthesize pure α-Fe2O3 and cobalt doped α-Fe2O3: structural, morphological, optical and photocatalytic properties

“…The average crystallite size of particle was determined using the well-known Scherer formula (Eq. ( 2)) from the full width at half maximum (FWHM) of XRD patterns [27].…”