Details
| Original language | English |
|---|---|
| Pages (from-to) | 2824-2833 |
| Number of pages | 10 |
| Journal | Industrial and Engineering Chemistry Research |
| Volume | 56 |
| Issue number | 10 |
| Early online date | 7 Mar 2017 |
| Publication status | Published - 15 Mar 2017 |
Abstract
The development of new adsorbent materials is a key factor for applying sorption-based technologies designed to clean effluents. Clay biomass complexes (BMMT) from fungal biomass grown on a raw montmorillonite (MMT) were generated in a previous work and used in a wet state. These samples were examined previously as a material to retain metals and improve separation after adsorption processes. The objective of this study was to characterize the uranium(VI) adsorption of previously dried BMMT, to determine differences from wet BMMT samples, and to understand some of the processes responsible for those differences. The differences between dried and wet BMMT adsorption capacities were verified. Proton exchange of dried BMMT samples was analyzed. Furthermore, X-ray diffraction and ζ-potential measurements of the samples after uranium(VI) uptake were performed. The hydration degree during the adsorption contact time was evaluated. Contact-angle measurement and diffusion experiments by Fourier transform infrared spectroscopy were also conducted. Dried BMMT samples presented a higher uranium(VI) uptake capacity than wet BMMT samples. Biomass played an important role in the behavior of samples evaluated, and the results indicated the importance to specify the hydration degree of adsorbents. (Figure Presented).
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In: Industrial and Engineering Chemistry Research, Vol. 56, No. 10, 15.03.2017, p. 2824-2833.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Importance of the Hydration Degree in the Use of Clay-Fungal Biocomposites as Adsorbents for Uranium Uptake
AU - Olivelli, Melisa S.
AU - Schampera, Birgit
AU - Woche, Susanne K.
AU - Torres Sánchez, Rosa M.
AU - Curutchet, Gustavo A.
N1 - Funding information: The authors acknowledge the Ministerio de Ciencia y Técnica, Agencia Nacional de Promoción Científica y Tecnológica, MINCyT-ANPCyT-FONARSEC through FS-Nano 008, CONICET PIO 2013, and Deutsche Forschungsgemeinschaft (German Research Foundation), SCHA 1732/1-1, for financial support. G.A.C. and R.M.T.S. are members of CONICET, and M.S.O. acknowledges a CONICET fellowship and a DAAD grant.
PY - 2017/3/15
Y1 - 2017/3/15
N2 - The development of new adsorbent materials is a key factor for applying sorption-based technologies designed to clean effluents. Clay biomass complexes (BMMT) from fungal biomass grown on a raw montmorillonite (MMT) were generated in a previous work and used in a wet state. These samples were examined previously as a material to retain metals and improve separation after adsorption processes. The objective of this study was to characterize the uranium(VI) adsorption of previously dried BMMT, to determine differences from wet BMMT samples, and to understand some of the processes responsible for those differences. The differences between dried and wet BMMT adsorption capacities were verified. Proton exchange of dried BMMT samples was analyzed. Furthermore, X-ray diffraction and ζ-potential measurements of the samples after uranium(VI) uptake were performed. The hydration degree during the adsorption contact time was evaluated. Contact-angle measurement and diffusion experiments by Fourier transform infrared spectroscopy were also conducted. Dried BMMT samples presented a higher uranium(VI) uptake capacity than wet BMMT samples. Biomass played an important role in the behavior of samples evaluated, and the results indicated the importance to specify the hydration degree of adsorbents. (Figure Presented).
AB - The development of new adsorbent materials is a key factor for applying sorption-based technologies designed to clean effluents. Clay biomass complexes (BMMT) from fungal biomass grown on a raw montmorillonite (MMT) were generated in a previous work and used in a wet state. These samples were examined previously as a material to retain metals and improve separation after adsorption processes. The objective of this study was to characterize the uranium(VI) adsorption of previously dried BMMT, to determine differences from wet BMMT samples, and to understand some of the processes responsible for those differences. The differences between dried and wet BMMT adsorption capacities were verified. Proton exchange of dried BMMT samples was analyzed. Furthermore, X-ray diffraction and ζ-potential measurements of the samples after uranium(VI) uptake were performed. The hydration degree during the adsorption contact time was evaluated. Contact-angle measurement and diffusion experiments by Fourier transform infrared spectroscopy were also conducted. Dried BMMT samples presented a higher uranium(VI) uptake capacity than wet BMMT samples. Biomass played an important role in the behavior of samples evaluated, and the results indicated the importance to specify the hydration degree of adsorbents. (Figure Presented).
UR - http://www.scopus.com/inward/record.url?scp=85018515617&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.6b04881
DO - 10.1021/acs.iecr.6b04881
M3 - Article
AN - SCOPUS:85018515617
VL - 56
SP - 2824
EP - 2833
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
SN - 0888-5885
IS - 10
ER -