Electrochemical evaluation of selenium (IV) removal from its aqueous solutions by unmodified and modified graphene oxide
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU132007" target="_blank" >RIV/00216305:26620/19:PU132007 - isvavai.cz</a>
Alternative codes found
RIV/62156489:43210/19:43915568
Result on the web
<a href="https://www.mdpi.com/1420-3049/24/6/1063" target="_blank" >https://www.mdpi.com/1420-3049/24/6/1063</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/molecules24061063" target="_blank" >10.3390/molecules24061063</a>
Alternative languages
Result language
angličtina
Original language name
Electrochemical evaluation of selenium (IV) removal from its aqueous solutions by unmodified and modified graphene oxide
Original language description
The removal of selenium from superficial and waste water is a worldwide problem. The maximum limit according to the World Health Organization (WHO) for the selenium in the water is set at a concentration of 10 g/L. Carbon based adsorbents have attracted much attention and recently demonstrated promising performance in removal of selenium. In this work, several materials (iron oxide based microparticles and graphene oxides materials) and their composites were prepared to remove Se(IV) from water. The graphene oxides were prepared according to the simplified Hummer's method. In addition, the effect of pH, contact time and initial Se(IV) concentration was tested. An electrochemical method such as the differential pulse cathodic stripping voltammetry was used to determine the residual selenium concentration. From the experimental data, Langmuir adsorption model was used to calculate the maximum adsorption capacity. Graphene oxide particles modified by iron oxide based microparticles was the most promising material for the removal of Se(IV) from its aqueous solution at pH 2.0. Its adsorption efficiency reached more than 90% for a solution with given Se(IV) concentration, meanwhile its maximal recorded adsorption capacity was 18.69 mg/g.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
MOLECULES
ISSN
1420-3049
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
6
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
1-13
UT code for WoS article
000465503800039
EID of the result in the Scopus database
2-s2.0-85063164821