Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar
The work deals with the evaluation of biochar samples prepared from Phyllostachys Viridiglaucescens bamboo. This evaluation consists of the characterization of prepared materials’ structural properties, batch and dynamic sorption experiments, and potentiometric titrations. The batch technique was fo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/3/486 |
| _version_ | 1797409122904178688 |
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| author | Martin Daňo Eva Viglašová Karel Štamberg Michal Galamboš Dušan Galanda |
| author_facet | Martin Daňo Eva Viglašová Karel Štamberg Michal Galamboš Dušan Galanda |
| author_sort | Martin Daňo |
| collection | DOAJ |
| description | The work deals with the evaluation of biochar samples prepared from Phyllostachys Viridiglaucescens bamboo. This evaluation consists of the characterization of prepared materials’ structural properties, batch and dynamic sorption experiments, and potentiometric titrations. The batch technique was focused on obtaining basic sorption data of <sup>99m</sup>TcO<sub>4</sub><sup>−</sup> on biochar samples including influence of pH, contact time, and Freundlich isotherm. ReO<sub>4</sub><sup>−</sup>, which has very similar chemical properties to <sup>99m</sup>TcO<sub>4</sub><sup>−</sup>, was used as a carrier in the experiments. Theoretical modeling of titration curves of biochar samples was based on the application of surface complexation models, namely, so called Chemical Equilibrium Model (CEM) and Ion Exchange Model (IExM). In this case it is assumed that there are two types of surface groups, namely, the so-called layer and edge sites. The dynamic experimental data of sorption curves were fitted by a model based on complementary error function erfc(x). |
| first_indexed | 2024-03-09T04:09:46Z |
| format | Article |
| id | doaj.art-8704193fcce44bafa8b332a4c3a5c32c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T04:09:46Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-8704193fcce44bafa8b332a4c3a5c32c2023-12-03T14:02:21ZengMDPI AGMaterials1996-19442021-01-0114348610.3390/ma14030486Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered BiocharMartin Daňo0Eva Viglašová1Karel Štamberg2Michal Galamboš3Dušan Galanda4Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19 Prague, Czech RepublicDepartment of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19 Prague, Czech RepublicDepartment of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Břehová 7, 115 19 Prague, Czech RepublicDepartment of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska Dolina, Ilkovičova 6, 842 15 Bratislava, SlovakiaDepartment of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska Dolina, Ilkovičova 6, 842 15 Bratislava, SlovakiaThe work deals with the evaluation of biochar samples prepared from Phyllostachys Viridiglaucescens bamboo. This evaluation consists of the characterization of prepared materials’ structural properties, batch and dynamic sorption experiments, and potentiometric titrations. The batch technique was focused on obtaining basic sorption data of <sup>99m</sup>TcO<sub>4</sub><sup>−</sup> on biochar samples including influence of pH, contact time, and Freundlich isotherm. ReO<sub>4</sub><sup>−</sup>, which has very similar chemical properties to <sup>99m</sup>TcO<sub>4</sub><sup>−</sup>, was used as a carrier in the experiments. Theoretical modeling of titration curves of biochar samples was based on the application of surface complexation models, namely, so called Chemical Equilibrium Model (CEM) and Ion Exchange Model (IExM). In this case it is assumed that there are two types of surface groups, namely, the so-called layer and edge sites. The dynamic experimental data of sorption curves were fitted by a model based on complementary error function erfc(x).https://www.mdpi.com/1996-1944/14/3/486engineered biochartechnetiumrheniumpotentiometric titrationsorptionmodelling |
| spellingShingle | Martin Daňo Eva Viglašová Karel Štamberg Michal Galamboš Dušan Galanda Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar Materials engineered biochar technetium rhenium potentiometric titration sorption modelling |
| title | Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar |
| title_full | Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar |
| title_fullStr | Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar |
| title_full_unstemmed | Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar |
| title_short | Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar |
| title_sort | pertechnetate perrhenate surface complexation on bamboo engineered biochar |
| topic | engineered biochar technetium rhenium potentiometric titration sorption modelling |
| url | https://www.mdpi.com/1996-1944/14/3/486 |
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