Removal of arsenate and selenite from aqueous solution using nano-amorphous iron-titanium hydrous oxide

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Removal of arsenate and selenite from aqueous solution using nano-amorphous iron-titanium hydrous oxide

Popis výsledku v původním jazyce

Metaloids such as selenium (Se) and arsenic (As) are among the most important environmental contaminants affecting environment and human health. The Fe-Ti hydrous oxide was synthesized and used as an adsorbent for removal of arsenate (As(V)) and selenite(Se(IV)) from aqueous solution. The new synthesized adsorbent was investigated using Transmission Electron Microscopy (TEM), X-Ray powder diffraction (XRD), the Brunauer-Elmet-Teller nitrogen adsorption technique (BET-N2 adsorption), Fourier transform spectroscopy (FTIR), thermogravimetric analysis (TGA) and batch experiments were carried out to determine its adsorption properties. It is shown that the adsorbent was nano-amorphous hydrous oxide with high specific surface area of 230 m2/g. The increaseof pH had negative effects on the adsorption of the As(V) and Se(IV), but Se(IV) was more sensitive to pH changes than that of As(V). Kinetic data was well fitted by a pseudo second-order model. Langmuir isotherms gave the best descriptio

Název v anglickém jazyce

Removal of arsenate and selenite from aqueous solution using nano-amorphous iron-titanium hydrous oxide

Popis výsledku anglicky

Metaloids such as selenium (Se) and arsenic (As) are among the most important environmental contaminants affecting environment and human health. The Fe-Ti hydrous oxide was synthesized and used as an adsorbent for removal of arsenate (As(V)) and selenite(Se(IV)) from aqueous solution. The new synthesized adsorbent was investigated using Transmission Electron Microscopy (TEM), X-Ray powder diffraction (XRD), the Brunauer-Elmet-Teller nitrogen adsorption technique (BET-N2 adsorption), Fourier transform spectroscopy (FTIR), thermogravimetric analysis (TGA) and batch experiments were carried out to determine its adsorption properties. It is shown that the adsorbent was nano-amorphous hydrous oxide with high specific surface area of 230 m2/g. The increaseof pH had negative effects on the adsorption of the As(V) and Se(IV), but Se(IV) was more sensitive to pH changes than that of As(V). Kinetic data was well fitted by a pseudo second-order model. Langmuir isotherms gave the best descriptio

Druh

D - Stať ve sborníku

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

Bookof Abstracts 45. Symposium on Catalysis

ISBN

978-80-87351-27-7

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

30

Název nakladatele

J. Heyrovský Institute of Physical Chemistry

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

4. 11. 2013

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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