Hydroxyapatite Nanopowders for Effective Removal of Strontium Ions from Aqueous Solutions

Overview

Journal Materials (Basel)

Publisher MDPI

Date 2023 Jan 8

PMID 36614570

Authors

Silviu Adrian Predoi

Steluta Carmen Ciobanu

Mariana Carmen Chifiriuc

Mikael Motelica-Heino

Daniela Predoi

Simona Liliana Iconaru

Affiliations

Soon will be listed here.

Abstract

Drinking water contamination has become a worldwide problem due to the highly negative effects that pollutants can have on human organisms and the environment. Hydroxyapatite (HAp) has the appropriate properties for the immobilization of various pollutants, being considered amongst the most cost-effective materials for water decontamination. The main objective of this study was to use synthesized hydroxyapatite for the elimination of Sr ions from contaminated solutions. The hydroxyapatite used in the decontamination process was synthesized in the laboratory using an adapted method. The hydroxyapatite powder (HAp) resulting from the synthesis was analyzed both before and after the elimination of Sr ions from contaminated solutions. The efficiency of the HAp nanoparticles in removing Sr ions from contaminated solution was determined by batch adsorption experiments. X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) were used to study the HAp samples before and after the removal of Sr ions. The ability of HAp nanoparticles to eliminate strontium ions from contaminated solutions was established. Moreover, the removal of Sr ions from the contaminated aqueous solutions was highlighted by ultrasound measurements. The value of the stability parameter calculated by ultrasonic measurements after the removal of Sr ions from the contaminated solution was similar to that of double distilled water whose stability was used as reference. The outcomes of the batch experiments and the parameters obtained from Langmuir and Freundlich models indicated that the HAp nanoparticles had a strong affinity for the elimination of Sr ions from polluted solutions. These results emphasized that HAp nanoparticles could be excellent candidates in the development of new technologies for water remediation. More than that, the outcomes of the cytotoxic assays proved that HAp nanoparticles did not induce any noticeable harmful effects against HeLa cells and did not affect their proliferation after 1 day and 7 days of incubation.

Citing Articles

Development of Novel Biocomposites with Antimicrobial-Activity-Based Magnesium-Doped Hydroxyapatite with Amoxicillin.

Cimpeanu C, Predoi D, Ciobanu C, Iconaru S, Rokosz K, Predoi M Antibiotics (Basel). 2024; 13(10).

PMID: 39452229 PMC: 11504330. DOI: 10.3390/antibiotics13100963.

Physico-Chemical and Biological Features of Fluorine-Substituted Hydroxyapatite Suspensions.

Ciobanu C, Predoi D, Iconaru S, Predoi M, Rokosz K, Raaen S Materials (Basel). 2024; 17(14).

PMID: 39063697 PMC: 11277939. DOI: 10.3390/ma17143404.

Complex Evaluation of Nanocomposite-Based Hydroxyapatite for Biomedical Applications.

Predoi D, Iconaru S, Ciobanu S, Buton N, Predoi M Biomimetics (Basel). 2023; 8(7).

PMID: 37999169 PMC: 10669721. DOI: 10.3390/biomimetics8070528.

Multifunctional Biotemplated Micromotors for In Situ Decontamination of Antibiotics and Heavy Metals in Soil and Groundwater.

Cui H, Wang K, Ma E, Wang H Nanomaterials (Basel). 2023; 13(19).

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Biological Response of Human Gingival Fibroblasts to Zinc-Doped Hydroxyapatite Designed for Dental Applications-An In Vitro Study.

Badea M, Balas M, Popa M, Borcan T, Bunea A, Predoi D Materials (Basel). 2023; 16(11).

PMID: 37297278 PMC: 10254399. DOI: 10.3390/ma16114145.

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