Ibuprofen and acetylsalicylic acid biosorption on the leaves of the knotweed Fallopia x bohemica

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F17%3AA1801NGX" target="_blank" >RIV/61988987:17310/17:A1801NGX - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/c7nj01658a" target="_blank" >http://dx.doi.org/10.1039/c7nj01658a</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c7nj01658a" target="_blank" >10.1039/c7nj01658a</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ibuprofen and acetylsalicylic acid biosorption on the leaves of the knotweed Fallopia x bohemica

Popis výsledku v původním jazyce

Surface water contamination by pharmaceuticals is a serious environmental problem which must be solved by the purification of waste water, for example by sorption on different kinds of sorbents. The aim of this study is to verify the possibility of the utilization of crushed knotweed (Fallopia x bohemica)leaves as a cheap biosorbent for ibuprofen (IBU) and acetylsalicylic acid (ASA) sorption and to compare the sorption capacities with those of natural bentonite and active carbon. The time dependence of the selected pharmaceuticals' sorption on the knotweed leaves was studied. The sorption equilibrium was reached after 6 hours. Subsequently, the sorption isotherms for selected pharmaceuticals were measured. The obtained experimental data correspond to the Langmuir model for all studied sorbentsand for both pharmaceuticals. The maximal adsorbed amounts (calculated from the Langmuir model) on the knotweed leaves were 185.2 μmol/g (38.2 mg/g) for IBU and 96.2 μmol/g (17.3 mg/g) for ASA. These sorption capacities are lower compared to that of the active carbon and comparable to that of the studied bentonite. The mechanism of the pharmaceuticals' sorption on the knotweed leaves can be explained by interactions among the nitrogen and oxygen bearing groups and by π–π interactions between the aromatic parts of the IBU and ASA molecules and the aromatic parts of the knotweed leaves' structure. It was found that knotweed leaves represent an interesting alternative biosorbent usable for water purification.

Název v anglickém jazyce

Ibuprofen and acetylsalicylic acid biosorption on the leaves of the knotweed Fallopia x bohemica

Popis výsledku anglicky

Surface water contamination by pharmaceuticals is a serious environmental problem which must be solved by the purification of waste water, for example by sorption on different kinds of sorbents. The aim of this study is to verify the possibility of the utilization of crushed knotweed (Fallopia x bohemica)leaves as a cheap biosorbent for ibuprofen (IBU) and acetylsalicylic acid (ASA) sorption and to compare the sorption capacities with those of natural bentonite and active carbon. The time dependence of the selected pharmaceuticals' sorption on the knotweed leaves was studied. The sorption equilibrium was reached after 6 hours. Subsequently, the sorption isotherms for selected pharmaceuticals were measured. The obtained experimental data correspond to the Langmuir model for all studied sorbentsand for both pharmaceuticals. The maximal adsorbed amounts (calculated from the Langmuir model) on the knotweed leaves were 185.2 μmol/g (38.2 mg/g) for IBU and 96.2 μmol/g (17.3 mg/g) for ASA. These sorption capacities are lower compared to that of the active carbon and comparable to that of the studied bentonite. The mechanism of the pharmaceuticals' sorption on the knotweed leaves can be explained by interactions among the nitrogen and oxygen bearing groups and by π–π interactions between the aromatic parts of the IBU and ASA molecules and the aromatic parts of the knotweed leaves' structure. It was found that knotweed leaves represent an interesting alternative biosorbent usable for water purification.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

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

2017

Kód důvěrnosti údajů

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

Název periodika

NEW J CHEM

ISSN

1144-0546

e-ISSN

—

Svazek periodika

41

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

7

Strana od-do

7953-7959

Kód UT WoS článku

000407304100018

EID výsledku v databázi Scopus

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