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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 0,2 to 1,9 while ?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.
- 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 0,2 to 1,9 while ?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. (en)
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Title
| - Isotope fractionation and spectroscopic analysis as an evidence of Cr(VI) reduction during biosorption
- Isotope fractionation and spectroscopic analysis as an evidence of Cr(VI) reduction during biosorption (en)
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skos:prefLabel
| - Isotope fractionation and spectroscopic analysis as an evidence of Cr(VI) reduction during biosorption
- Isotope fractionation and spectroscopic analysis as an evidence of Cr(VI) reduction during biosorption (en)
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skos:notation
| - RIV/60460709:41330/14:61117!RIV15-TA0-41330___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/60460709:41330/14:61117
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - biosorption, chromium(VI), isotope fractionation, rayleigh fractionation model, reduction (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Komárek, Michael
- Chrastný, Vladislav
- Čadková, Eva
- Šillerová, Hana
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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