Physicochemical aspects of adsorption efficiency of nanocrystalline ceria toward antibiotics, herbicides, and inorganic phosphates

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F25%3A43899323" target="_blank" >RIV/44555601:13440/25:43899323 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/44555601:13520/25:43899323

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2025/ra/d5ra05301c" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2025/ra/d5ra05301c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d5ra05301c" target="_blank" >10.1039/d5ra05301c</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Physicochemical aspects of adsorption efficiency of nanocrystalline ceria toward antibiotics, herbicides, and inorganic phosphates

Popis výsledku v původním jazyce

Nanoceria oxides (ceria, CeO2) have emerged as promising materials for the effective adsorption of various pollutants, including antibiotics, herbicides, and inorganic phosphates, owing to their unique physicochemical properties. This study explores the adsorption efficiencies of nanoceria samplessynthesized using various laboratory procedures. The adsorption behavior of cephalexin (CEF), 2,4- dichlorophenoxyacetic acid (2,4D), and inorganic phosphate (IP) was evaluated using the Freundlich, Langmuir, and Langmuir?Freundlich isotherm models. The results showed that the adsorption of IP, 2,4D, and CEF followed the Freundlich and Langmuir-Freundlich isotherms with maximum adsorption capacities of 68.6 mg/g (IP), 65.9 mg/g (CEF), and 83.4 mg/g (2,4D), respectively. IP, 2,4D, and CEF adsorption on ceria samples follow pseudo-second-order kinetics, suggesting that the adsorption rate relies on the availability of adsorption sites and is controlled by chemisorption. The specific interaction of pollutants with ceria samples was evaluated by FTIR. The calculated Gibbs free energy (DGo) valuesindicate that the adsorption of pollutants onto the ceria materials is a spontaneous process. Among them tested samples, Ce-PER and Ce-AMN demonstrated superior adsorption capacity due to their high surface area. These results highlight the promise of ceria materials as highly versatile and effective adsorbents for removing various pollutants in the water treatment process.

Název v anglickém jazyce

Physicochemical aspects of adsorption efficiency of nanocrystalline ceria toward antibiotics, herbicides, and inorganic phosphates

Popis výsledku anglicky

Nanoceria oxides (ceria, CeO2) have emerged as promising materials for the effective adsorption of various pollutants, including antibiotics, herbicides, and inorganic phosphates, owing to their unique physicochemical properties. This study explores the adsorption efficiencies of nanoceria samplessynthesized using various laboratory procedures. The adsorption behavior of cephalexin (CEF), 2,4- dichlorophenoxyacetic acid (2,4D), and inorganic phosphate (IP) was evaluated using the Freundlich, Langmuir, and Langmuir?Freundlich isotherm models. The results showed that the adsorption of IP, 2,4D, and CEF followed the Freundlich and Langmuir-Freundlich isotherms with maximum adsorption capacities of 68.6 mg/g (IP), 65.9 mg/g (CEF), and 83.4 mg/g (2,4D), respectively. IP, 2,4D, and CEF adsorption on ceria samples follow pseudo-second-order kinetics, suggesting that the adsorption rate relies on the availability of adsorption sites and is controlled by chemisorption. The specific interaction of pollutants with ceria samples was evaluated by FTIR. The calculated Gibbs free energy (DGo) valuesindicate that the adsorption of pollutants onto the ceria materials is a spontaneous process. Among them tested samples, Ce-PER and Ce-AMN demonstrated superior adsorption capacity due to their high surface area. These results highlight the promise of ceria materials as highly versatile and effective adsorbents for removing various pollutants in the water treatment process.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

RSC Advances

ISSN

2046-2069

e-ISSN

—

Svazek periodika

2025

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

38391-38405

Kód UT WoS článku

001592506400001

EID výsledku v databázi Scopus

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