Removal of nystatin from aqueous solution by adsorption onto nanohydroxyapatite
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2023-12-18 17:02
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ILISEI, Simona, CIOBANU, Gabriela, LUCA, Constantin. Removal of nystatin from aqueous solution by adsorption onto nanohydroxyapatite. In: Ecological and environmental chemistry : - 2017, Ed. 6, 2-3 martie 2017, Chișinău. Chisinau, Republic of Moldova: Academy of Sciences of Moldova, 2017, Ediția 6, p. 99.
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Ecological and environmental chemistry
Ediția 6, 2017
Conferința "Ecological and environmental chemistry 2017"
6, Chișinău, Moldova, 2-3 martie 2017

Removal of nystatin from aqueous solution by adsorption onto nanohydroxyapatite


Pag. 99-99

Ilisei Simona, Ciobanu Gabriela, Luca Constantin
 
Gheorghe Asachi Technical University of Iasi
 
Disponibil în IBN: 11 martie 2019


Rezumat

The purpose of the present study is to investigate the adsorption of Nystatin from the industrial effluents discharged from the pharmaceutical industry. The adsorbent used is nanocrystalline hydroxyapatite that was prepared by a wet precipitation method by using Ca(NO3)2·4H2O and (NH4)2HPO4 as main materials. Hydroxyapatite Ca10 (PO4)6(OH) 2) due to the specific structure have an adsorption affinity towards many pollutants. The structure of the nanohydroxyapatite adsorbent was investigated by applying XRD, BET and SEM-EDX methods. The size of hydroxyapatite crystals was smaller than 100 nm. The nanohydroxyapatite samples had a high specific surface area of 325 m2/g and 69 m2/g for the uncalcined and calcined hydroxyapatite samples, respectively. The batch adsorption experiments were carried out to investigate the influence of different parameters, such as average adsorbent dosage, contact time, solution pH and temperature. The kinetic studies indicated that the Nystatin adsorption on the uncalcined hydroxyapatite is more productive than calcined nanohydroxyapatites samples.

Cuvinte-cheie
hydroxyapatite, adsorption, nanoparticle, nystatin