Influence of Oxidation Stage and Exfoliation Extent of Carbon-Based Materials on Electrochemical Detection of As(III)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F16%3A43907796" target="_blank" >RIV/62156489:43210/16:43907796 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/16:PU116446

Výsledek na webu

<a href="http://www.electrochemsci.org/papers/vol11/110201213.pdf" target="_blank" >http://www.electrochemsci.org/papers/vol11/110201213.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Oxidation Stage and Exfoliation Extent of Carbon-Based Materials on Electrochemical Detection of As(III)

Popis výsledku v původním jazyce

This study deals with the electrochemical detection of As(III) and especially with its interaction with carbon-based materials such as graphene oxide, graphite oxide and partially reduced graphene oxide in connection with the adsorption of As(III) to their surface. Using differential pulse voltammetry and atomic absorption spectrometry, it was found that the As(III) reaches the best adsorption efficiency on the carbon-based materials surfaces at very acidic pH after 1 hour interaction.We decided to use this promising ability of graphene oxide to design a new method for As(III) detection using a modified glassy carbon electrode (GCE). In order to enable detection of As(III), the surface of glassy carbon electrode was firstly modified by gold nanoparticles (AuNPs). After this step the working electrode was modified for with graphene oxide to enhance the electrochemical signal of As(III). Compared to the working electrode modified only by gold nanoparticles, the electrochemical signal of As(III) on the GCE/AuNPs/GO increased by approx. 50%. Interaction time of As(III) on graphene oxide (located on the surface of the working electrode) demonstrated the process of As(III) adsorption to the surface, which is manifested by increasing electrochemical signal of As(III) in individual time intervals

Název v anglickém jazyce

Influence of Oxidation Stage and Exfoliation Extent of Carbon-Based Materials on Electrochemical Detection of As(III)

Popis výsledku anglicky

This study deals with the electrochemical detection of As(III) and especially with its interaction with carbon-based materials such as graphene oxide, graphite oxide and partially reduced graphene oxide in connection with the adsorption of As(III) to their surface. Using differential pulse voltammetry and atomic absorption spectrometry, it was found that the As(III) reaches the best adsorption efficiency on the carbon-based materials surfaces at very acidic pH after 1 hour interaction.We decided to use this promising ability of graphene oxide to design a new method for As(III) detection using a modified glassy carbon electrode (GCE). In order to enable detection of As(III), the surface of glassy carbon electrode was firstly modified by gold nanoparticles (AuNPs). After this step the working electrode was modified for with graphene oxide to enhance the electrochemical signal of As(III). Compared to the working electrode modified only by gold nanoparticles, the electrochemical signal of As(III) on the GCE/AuNPs/GO increased by approx. 50%. Interaction time of As(III) on graphene oxide (located on the surface of the working electrode) demonstrated the process of As(III) adsorption to the surface, which is manifested by increasing electrochemical signal of As(III) in individual time intervals

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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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

2016

Kód důvěrnosti údajů

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

Název periodika

International Journal of Electrochemical Science

ISSN

1452-3981

e-ISSN

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Svazek periodika

11

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CS - Srbsko a Černá Hora

Počet stran výsledku

15

Strana od-do

1213-1227

Kód UT WoS článku

000371091400029

EID výsledku v databázi Scopus

2-s2.0-84958149907