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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10406 - Analytical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

NEW J CHEM

ISSN

1144-0546

e-ISSN

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Volume of the periodical

41

Issue of the periodical within the volume

16

Country of publishing house

FR - FRANCE

Number of pages

7

Pages from-to

7953-7959

UT code for WoS article

000407304100018

EID of the result in the Scopus database

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