Porous ZnO/hydroxyapatite nanomaterials with effective photocatalytic and antibacterial activities for the degradation of antibiotics

Bekkali, C. El; Labrag, J.; Oulguidoum, Abdeladim; Chamkhi, Imane; Laghzizil, A.; Nunzi, Jean‐Michel; Robert, Didier; Aurag, Jamal

doi:10.1007/s41204-021-00172-7

Cited by 12 publications

(6 citation statements)

References 34 publications

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“…This problem can be solved by forming stable composite samples [ 13 ]. Among these nanoparticles, nanohydroxyapatite, which has the molecular formula Ca 10 (PO 4 ) 6 (OH) 2 , is used in medical and environmental applications due to its bioactivity, porous structure, and functional groups on the surface [ 14 , 15 , 16 ]. Nanohydroxyapatite is produced either by chemical processes or by calcination of bio-wastes such as fish bones, bovine bones, pig bones, eggshells, or sea-scallop shells.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Nano Zinc Oxide/Nanohydroxyapatite Composites Using Date Palm Pits Extract and Eggshells: Adsorption and Photocatalytic Degradation of Methylene Blue

et al. 2021

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In this study, zinc oxide nanoparticles (ZnO) and nanohydroxyapatite (NHAP) were prepared in the presence of date palm pits extract (DPPE) and eggshells, respectively. Another four nanocomposites were prepared from ZnO and NHAP in different ratios (ZP13, ZP14, ZP15, and ZP16). DPPE and all nanomaterials were characterized using GC-MS, zeta potentials, particle size distributions, XRD, TEM, EDX, FTIR, and pHPZC. The characterization techniques confirmed the good distribution of ZnO nanoparticles on the surface of NHAP in the prepared composites. Particles were found to be in the size range of 42.3–66.1 nm. The DPPE analysis confirmed the presence of various natural chemical compounds which act as capping agents for nanoparticles. All the prepared samples were applied in the adsorption and photocatalytic degradation of methylene blue under different conditions. ZP14 exhibited the maximum adsorption capacity (596.1 mg/g) at pH 8, with 1.8 g/L as the adsorbent dosage, after 24 h of shaking time, and the static adsorption kinetic process followed a PSO kinetic model. The photocatalytic activity of ZP14 reached 91% after 100 min of illumination at a lower MB concentration (20 mg/L), at pH 8, using 1.5 g/L as the photocatalyst dosage, at 25 °C. The photocatalytic degradation of MB obeyed the Langmuir–Hinshelwood first-order kinetic model, and the photocatalyst reusability exhibited a slight loss in activity (~4%) after five cycles of application.

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Section: Introductionmentioning

confidence: 99%

Green Synthesis of Nano Zinc Oxide/Nanohydroxyapatite Composites Using Date Palm Pits Extract and Eggshells: Adsorption and Photocatalytic Degradation of Methylene Blue

et al. 2021

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“…The chemical composition of the HA surface can be functionalized to improve adsorption and reduce the releasing kinetics prolonging the duration and efficiency of the antibacterial properties (Figure 4) [80,81].…”

Section: Functionalization By Physical Adsorptionmentioning

confidence: 99%

“…Among them, antibacterial polymers, such as chitosan, and polycaprolactone (PCL), are frequently preferred for the obtention of HA composites with antibacterial properties [87,90,91,[98][99][100][101][102]. Metallic nanoparticles, such as silver, zinc dioxide, titanium dioxide, and niobium pentoxide, have been combined with graphene and hydroxyapatite to produce composites with antibacterial properties [64,80,94,[103][104][105].…”

Section: Functionalization By Antibacterial Compositesmentioning

confidence: 99%

Perspective Chapter: Hydroxyapatite – Surface Functionalization to Prevent Bacterial Colonization

García-Cadme¹,

Cano²,

Castaño³

et al. 2023

Functional Phosphate Materials and Their Applications

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Microbial colonization is one of the main causes of implant loosening and rejection. Pathogenic contamination and the subsequent biofilm formation reduce the implant’s chance of survival and can be life-threatening to a patient. Among the many strategies employed to reduce the infection probability of bioceramics, surface functionalization plays a key role. This chapter is dedicated to describing the different strategies available to prevent bacterial colonization and the proliferation of hydroxyapatite-coated implants. Moreover, the factors intervening in the bacteria-implant interaction will be described, detailing the mechanisms involved during the contact, adhesion, and proliferation of bacteria. Finally, the characterization methods will be discussed, emphasizing the bioactivity and antibacterial assays.

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“…The pores in lms can facilitate the deposition of photonic materials at precisely regulated locations. [53][54][55][56] The SERS-active sites may be improved through controlled deposition, which results in uniformly sized and packed AuNPs. The interaction volume between the analyte and the SERS-active substrate can be increased owing to the porous PAN layer, which can facilitate the penetration of analyte molecules into the pores.…”

Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile as a versatile matrix for gold nanoparticle-based SERS substrates

Sharma,

Kumar,

Yadav

2024

Nanoscale Adv.

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Porous ZnO/hydroxyapatite nanomaterials with effective photocatalytic and antibacterial activities for the degradation of antibiotics

Cited by 12 publications

References 34 publications

Green Synthesis of Nano Zinc Oxide/Nanohydroxyapatite Composites Using Date Palm Pits Extract and Eggshells: Adsorption and Photocatalytic Degradation of Methylene Blue

Green Synthesis of Nano Zinc Oxide/Nanohydroxyapatite Composites Using Date Palm Pits Extract and Eggshells: Adsorption and Photocatalytic Degradation of Methylene Blue

Perspective Chapter: Hydroxyapatite – Surface Functionalization to Prevent Bacterial Colonization

Polyacrylonitrile as a versatile matrix for gold nanoparticle-based SERS substrates

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