0600253 - ÚMCH 2025 RIV NL eng J - Článek v odborném periodiku
Tohamy, H.-A. S. - El-Sakhawy, M. - Strachota, Beata - Mares Barbosa, Silvia - Strachota, Adam - Kamel, S.
Development and characterization of fluorescent cellulose succinate hydrogels for efficient chromium adsorption.
Journal of Polymer Research. Roč. 31, č. 11 (2024), č. článku 339. ISSN 1022-9760. E-ISSN 1572-8935
Grant ostatní: AV ČR(CZ) ASRT-22-01
Program: Bilaterální spolupráce
Institucionální podpora: RVO:61389013
Klíčová slova: N-doped carbon quantum dots * cellulose succinate hydrogels * fluorescence
Obor OECD: Polymer science
Impakt faktor: 2.6, rok: 2023 ; AIS: 0.353, rok: 2023
Způsob publikování: Omezený přístup
Web výsledku:
https://link.springer.com/article/10.1007/s10965-024-04164-4DOI: https://doi.org/10.1007/s10965-024-04164-4

This study focuses on developing and characterizing of fluorescent cellulose-based hydrogelsfor efficient chromium (Cr(VI)) adsorption. For this purpose, microcrystalline cellulose (MCC) was first surface-modified to achieve solubility using succinic anhydride. Cellulose succinate (CS) subsequently was grafted with a mixture of acrylic acid (AA) and acrylamide (AM), while N,N′-methylene-bis(acrylamide) (MBA) was added as crosslinker to obtain the final grafted and crosslinked hydrogels. To impart fluorescence and sensing capabilities, nitrogen-doped carbon quantum dots (N-CQDs) were synthesized via a microwave-assisted method using sugarcane bagasse, NaOH, and urea as precursors, and incorporated into the hydrogel. The resulting hydrogels demonstrated effective Cr(VI) adsorption, with optimal performance observed at 10% N–CQD loading. FTIR, SEM, rheological analysis, and TGA were employed for hydrogel characterization, while adsorption kinetics provided insights into the interaction mechanisms with Cr(VI).
Trvalý link: https://hdl.handle.net/11104/0358271