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Cellulose nanofibrils-reinforced pectin membranes for the adsorption of cationic dyes from a model solution [Elektronski vir]Ojstršek, Alenka ; Gorgieva, SelestinaIn the presented research, a facile, one-step method for the fabrication of cellulose nanofibrils/pectin (CNFs/PC) membranes is described, which were tested further for their ability to remove ... cationic dyes from the prepared model solutions. For this purpose, ten membranes were prepared with different quantities of CNFs and PC with/without citric acid (CA) or CaCl2 as mediated crosslinking agents, and they were characterised comprehensively in terms of their physical, chemical, and hydrophilic properties. All the prepared CNFs/PC membranes were hydrophilic with a Water Contact Angle (WCA) from 51.23◦ (without crosslinker) up to 78.30◦ (CaCl2 ) and swelling of up to 485% (without crosslinker), up to 437% (CaCl2 ) and up to 270% (CA). The stability of membranes was decreased with the increase in PC; thus, only four membranes (M1, M2, M3 and M5) were stable enough in water after 24 h, and these were additionally applied in the adsorption trials, using two structurally different cationic dyes, i.e., C.I. Basic Yellow 28 (BY28) and C.I. Basic Blue 22 (BB22), in four concentrations. The highest total surface charge of M3 (2.83 mmol/g) as compared to the other membranes influenced the maximal removal efficiency of both dyes, up to 37% (BY28) and up to 71% (BB22), depending on the initial dye concentration. The final characteristics of the membranes and, consequently, the dye’s absorption ability could be tuned easily by changing the ratio between the CNFs and PC, as well as the type and amount of crosslinker.Source: Polymers [Elektronski vir]. - ISSN 2073-4360 (Vol. 16, iss. 6, [article no.] 724, March 2024, 13 str.)Type of material - e-article ; adult, seriousPublish date - 2024Language - englishCOBISS.SI-ID - 188367363
Author
Ojstršek, Alenka |
Gorgieva, Selestina
Topics
celulozni nanofibrili |
pektin |
membrane |
kationska barvila |
adsorpcija |
odstranjevanje barvil |
cellulose nanofibrils |
pectin |
cationic dyes |
adsorption |
dye removal
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Author | Ojstršek, Alenka ; Gorgieva, Selestina |
Title | Cellulose nanofibrils-reinforced pectin membranes for the adsorption of cationic dyes from a model solution [Elektronski vir] |
Publication date | 2024-03-07 |
COBISS.SI-ID | 188367363 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Tekstilna kemija in napredni tekstilni materiali | P2-0118-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
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Ojstršek, Alenka | 22407 |
Gorgieva, Selestina | 32136 |
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