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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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