Details der Publikation - Evaluation of diazepam adsorption in aqueous media using low-cost and natural zeolite: equilibrium and kinetics

Evaluation of diazepam adsorption in aqueous media using low-cost and natural zeolite: equilibrium and kinetics

Abstract Diazepam has been detected in water sources around the world affecting the quality of drinking water. Even in small quantities, recent studies have proven the negative effects of the drug on human body. Since traditional water and sewage treatment do not remove this type of contaminant, it became interesting to evaluate forms to remove them from water sources. A cheap and eco-friendly alternative to remove this drug from the water is through adsorption using the natural clinoptilolite zeolite as an adsorbent. This work goal was to study the characterizations of clinoptilolite, such as scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffractometer (XRD), and Fourier transform infrared spectroscopy (FTIR) and analyze the potential of this material as an adsorbent. Kinetic studies and isotherm analysis were performed in batch. The results showed the potential of the natural zeolite to remove the pollutant in an aqueous medium reaching a maximum adsorption capacity of 8.25 mg $ g^{−1} $. The adsorption process followed a pseudo-second-order kinetics indicating that the adsorption was based on a chemisorption process. The isotherms curves shown favorable adsorption and the Langmuir isotherm model fit the experimental data better..

Medienart:	E-Artikel

Erscheinungsjahr:	2021
Erschienen:	2021

Enthalten in:	Zur Gesamtaufnahme - volume:29
Enthalten in:	Environmental science and pollution research - 29(2021), 53 vom: 16. Nov., Seite 79808-79815

Sprache:	Englisch

Beteiligte Personen:	Coslop, Thaísa Frossard [VerfasserIn] Nippes, Ramiro Picoli [VerfasserIn] Bergamasco, Rosangela [VerfasserIn] Scaliante, Mara Heloisa Neves Olsen [VerfasserIn]

Links:	Volltext [lizenzpflichtig]

Themen:	Adsorption Characterization Clinoptilolite Isotherm Natural zeolite PADs

Anmerkungen:	© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021

doi:	10.1007/s11356-021-17452-z

funding:
Förderinstitution / Projekttitel:

PPN (Katalog-ID):	OLC213249570X

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Evaluation of diazepam adsorption in aqueous media using low-cost and natural zeolite: equilibrium and kinetics

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