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dc.title | Cellulose derivatives crosslinked by citric acid on electrode surface as a heavy metal absorption/sensing matrix | en |
dc.contributor.author | Sotolářová, Jitka | |
dc.contributor.author | Vinter, Štěpán | |
dc.contributor.author | Filip, Jaroslav | |
dc.relation.ispartof | Colloids and Surfaces A: Physicochemical and Engineering Aspects | |
dc.identifier.issn | 0927-7757 Scopus Sources, Sherpa/RoMEO, JCR | |
dc.date.issued | 2021 | |
utb.relation.volume | 628 | |
dc.type | article | |
dc.language.iso | en | |
dc.publisher | Elsevier B.V. | |
dc.identifier.doi | 10.1016/j.colsurfa.2021.127242 | |
dc.relation.uri | https://www.sciencedirect.com/science/article/pii/S0927775721011110 | |
dc.subject | citric acid | en |
dc.subject | cellulose crosslinking | en |
dc.subject | hydroxyethyl cellulose | en |
dc.subject | carboxymethyl cellulose | en |
dc.subject | electrochemical sensors | en |
dc.subject | heavy metals | en |
dc.description.abstract | Hypothesis: Modification of cellulose derivatives with citric acid leads to gain in sorption capacity towards metal ions, which has been many times applied for heavy metal sequestration. This work, for the first time, investigated the in-situ coating of a carbon electrode with citric acid-crosslinked cellulose derivatives. The occurrence of crosslinking bonds was revealed using infrared spectroscopy and thermogravimetric analysis, while other features were investigated using electrochemical methods. Experiments: Electrodes were modified by casting of aqueous solutions of cellulose derivatives (hydroxyethyl cellulose, HEC and thermally pre-treated carboxymethyl cellulose, T-CMC) mixed with citric acid (CA) on the electrode surface, followed by thermal treatment (110 °C, 1 h) to reach the requested HEC-CA and T-CMC-CA hydrogels coated on glassy carbon electrodes. Findings: After the absorption of metal cations from solution, the electrodes coated by both HEC-CA and T-CMC-CA exhibited stripping voltammetry peaks for Pb, Cd and Cu, contrary to electrodes prepared without crosslinking. It was also observed that HEC-CA surface change its electrochemical impedance reversibly after deposition and acid-induced removal of Pb2+. Assessment of Pb2+ sensing properties revealed the detection limit of 0.39 mg L−1 and sensitivity of 9.91 μA L mg−1. Therefore, the citric acid-crosslinked cellulose derivatives can be employed for the preparation of cheap and sustainable heavy metal sensors and similar surfaces. © 2021 Elsevier B.V. | en |
utb.faculty | Faculty of Technology | |
dc.identifier.uri | http://hdl.handle.net/10563/1010490 | |
utb.identifier.obdid | 43883056 | |
utb.identifier.scopus | 2-s2.0-85111943087 | |
utb.identifier.wok | 000702815200006 | |
utb.identifier.coden | CPEAE | |
utb.source | j-scopus | |
dc.date.accessioned | 2021-08-17T13:56:40Z | |
dc.date.available | 2021-08-17T13:56:40Z | |
dc.description.sponsorship | Czech Science FoundationGrant Agency of the Czech Republic [GACR 20-27735Y] | |
dc.description.sponsorship | Grantová Agentura České Republiky, GA ČR: GAČR 20-27735Y | |
utb.ou | Department of Environmental Protection Engineering | |
utb.contributor.internalauthor | Sotolářová, Jitka | |
utb.contributor.internalauthor | Vinter, Štěpán | |
utb.contributor.internalauthor | Filip, Jaroslav | |
utb.fulltext.affiliation | Jitka Sotolářová , Štěpán Vinter, Jaroslav Filip * Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, Zlín 76001, Czechia * Corresponding author. E-mail address: jfilip@utb.cz (J. Filip). | |
utb.fulltext.dates | Received 15 April 2021; Received in revised form 19 July 2021; Accepted 23 July 2021 | |
utb.fulltext.sponsorship | This work was supported by Czech Science Foundation [grant number GAČR 20-27735Y ]. | |
utb.wos.affiliation | [Sotolarova, Jitka; Vinter, Stepan; Filip, Jaroslav] Tomas Bata Univ Zlin, Fac Technol, Dept Environm Protect Engn, Vavreckova 275, Zlin 76001, Czech Republic | |
utb.scopus.affiliation | Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, Zlín, 76001, Czech Republic | |
utb.fulltext.projects | GAČR 20-27735Y | |
utb.fulltext.faculty | Faculty of Technology | |
utb.fulltext.ou | Department of Environmental Protection Engineering |