Isotope fractionation and spectroscopic analysis as an evidence of Cr(VI) reduction during biosorption

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F14%3A61117" target="_blank" >RIV/60460709:41330/14:61117 - isvavai.cz</a>

Alternative codes found

RIV/00025798:_____/14:00000507

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Isotope fractionation and spectroscopic analysis as an evidence of Cr(VI) reduction during biosorption

Original language description

This work investigates the mechanisms behind Cr(VI) biosorption/reduction on three biomaterials (brewers draff, grape waste and synthetic humic acid). Coupled Cr isotope analysis with ICP-OES, XPS and SEM was tested as a novel approach to study the reduction of Cr(VI) by the biomaterials. The Cr(VI) biosorption process was accompanied with heavier Cr isotopes enrichment in the remaining Cr(VI) fraction. A significant fractionation of Cr stable isotopes was observed with no significant pH effect; ?53Cr of the remaining fraction ranged from 0,2to 1,9while ?53Cr of the product (sorbed Cr) ranged from -1,2 to -2,8. The Rayleigh fractionation model fitted well the measured data and Cr isotope analysis provides thus an efficient tool to quantify Cr(VI) reduction by different biomaterials. In general, the sorption/reduction potential of the three studied biomaterials decreased in the following order: grape waste > humic acids > brewers draff.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DD - Geochemistry

OECD FORD branch

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Project

<a href="/en/project/TA01021055" target="_blank" >TA01021055: Chromium isotopes as an indicator of natural attenuation of water pollution: Introducing mass-spectrometry based technology</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Name of the periodical

Chemosphere

ISSN

0045-6535

e-ISSN

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Volume of the periodical

2014

Issue of the periodical within the volume

95

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

402-407

UT code for WoS article

000328868400056

EID of the result in the Scopus database

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