Use of thermal analysis for the study of the adsorption of pharmaceuticals from water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F24%3APU154824" target="_blank" >RIV/00216305:26310/24:PU154824 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/24:10254284

Výsledek na webu

<a href="https://pdf.sciencedirectassets.com/314133/1-s2.0-S2468023024X00024/1-s2.0-S2468023024002244/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEEYaCXVzLWVhc3QtMSJGMEQCIFGm1HFK8vxS8upgt3skjYKwiP87yDcjl3l%2BH77kArO7AiBnoRWxlpJ0dQ0DdZlNb%2BAfwCtiBhFNrxSN6vsh6Xk" target="_blank" >https://pdf.sciencedirectassets.com/314133/1-s2.0-S2468023024X00024/1-s2.0-S2468023024002244/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEEYaCXVzLWVhc3QtMSJGMEQCIFGm1HFK8vxS8upgt3skjYKwiP87yDcjl3l%2BH77kArO7AiBnoRWxlpJ0dQ0DdZlNb%2BAfwCtiBhFNrxSN6vsh6Xk</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfin.2024.104065" target="_blank" >10.1016/j.surfin.2024.104065</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Use of thermal analysis for the study of the adsorption of pharmaceuticals from water

Popis výsledku v původním jazyce

The contamination of water with pharmaceuticals is one of the serious problems in the modern world. Their occurrence in surface- and groundwater brings a risk to the environment as well as human health. Therefore, many methods are studied in order of their removal. Adsorption on activated carbon belongs to the most popular ones. This paper is aimed at using thermal analysis to study the adsorption of analgesic paracetamol (acetaminophen) on activated carbon. Adsorption experiments including adsorption kinetics, adsorption isotherms, the effect of temperature and the effect of pH were also performed. Two different samples of commercial activated carbon (one powdered activated carbon (PAC) and one granular activated carbon (GAC)) and different initial concentrations of paracetamol were used. Equilibrium concentrations were determined with the aid of UV-VIS spectrophotometry and compared with thermogravimetric curves. Adsorption of paracetamol led to an appearance of a weak additional DTG peak at around 300-400 degrees C and negligible DTA effect in this temperature range. The DTG peaks at around 600 degrees C were reduced, indicating the removal of the groups left after activation on the carbon surface. The low height and width of DTG peaks and DTA effects were connected with a low mass ratio of adsorbed paracetamol related to the adsorbent mass (about 10-20%), more distinctive peaks could be achieved by the use of better adsorbing contaminants with higher molar mass.

Název v anglickém jazyce

Use of thermal analysis for the study of the adsorption of pharmaceuticals from water

Popis výsledku anglicky

The contamination of water with pharmaceuticals is one of the serious problems in the modern world. Their occurrence in surface- and groundwater brings a risk to the environment as well as human health. Therefore, many methods are studied in order of their removal. Adsorption on activated carbon belongs to the most popular ones. This paper is aimed at using thermal analysis to study the adsorption of analgesic paracetamol (acetaminophen) on activated carbon. Adsorption experiments including adsorption kinetics, adsorption isotherms, the effect of temperature and the effect of pH were also performed. Two different samples of commercial activated carbon (one powdered activated carbon (PAC) and one granular activated carbon (GAC)) and different initial concentrations of paracetamol were used. Equilibrium concentrations were determined with the aid of UV-VIS spectrophotometry and compared with thermogravimetric curves. Adsorption of paracetamol led to an appearance of a weak additional DTG peak at around 300-400 degrees C and negligible DTA effect in this temperature range. The DTG peaks at around 600 degrees C were reduced, indicating the removal of the groups left after activation on the carbon surface. The low height and width of DTG peaks and DTA effects were connected with a low mass ratio of adsorbed paracetamol related to the adsorbent mass (about 10-20%), more distinctive peaks could be achieved by the use of better adsorbing contaminants with higher molar mass.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GA19-16646S" target="_blank" >GA19-16646S: Potlačení negativního vlivu zinku v Portlandském cementu pomocí akcelerátorů hydratace</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

SURFACES AND INTERFACES

ISSN

2468-0230

e-ISSN

—

Svazek periodika

46

Číslo periodika v rámci svazku

2024-04-07

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

001196628100001

EID výsledku v databázi Scopus

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