Sustainable Tannin Gels for the Efficient Removal of Metal Ions and Organic Dyes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU149898" target="_blank" >RIV/00216305:26620/23:PU149898 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2310-2861/9/10/822" target="_blank" >https://www.mdpi.com/2310-2861/9/10/822</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/gels9100822" target="_blank" >10.3390/gels9100822</a>
Alternative languages
Result language
angličtina
Original language name
Sustainable Tannin Gels for the Efficient Removal of Metal Ions and Organic Dyes
Original language description
The usage of a highly efficient, low-cost, and sustainable adsorbent material as an industrial wastewater treatment technique is required. Herein, the usage of the novel, fully sustainable tannin-5-(hydroxymethyl)furfural (TH) aerogels, generated via a water-based sol-gel process, as compatible biosorbent materials is presented. In particular, this study focusses on the surface modification of the tannin biosorbent with carboxyl or amino functional groups, which, hence, alters the accessible adsorption sites, resulting in increased adsorption capacity, as well as investigating the optimal pH conditions for the adsorption process. Precisely, highest adsorption capacities are acquired for the metal cations and cationic dye in an alkaline aqueous environment using a carboxyl-functionalized tannin biosorbent, whereas the anionic dye requires an acidic environment using an amino-functionalized tannin biosorbent. Under these determined optimal conditions, the maximum monolayer adsorption capacity of the tannin biosorbent ensues in the following order: Cu2+ > RB > Zn2+ > MO, with 500, 244, 192, 131 mg g(-1), respectively, indicating comparable or even superior adsorption capacities compared to conventional activated carbons or silica adsorbents. Thus, these functionalized, fully sustainable, inexpensive tannin biosorbent materials, that feature high porosity and high specific surface areas, are ideal industrial candidates for the versatile adsorption process from contaminated (heavy) metal or dye solutions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
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Continuities
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Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Gels
ISSN
2310-2861
e-ISSN
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Volume of the periodical
9
Issue of the periodical within the volume
10
Country of publishing house
CH - SWITZERLAND
Number of pages
19
Pages from-to
1-19
UT code for WoS article
001094320500001
EID of the result in the Scopus database
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