Preparation of polyvinyl alcohol hydrogel modified with environment-friendly pomegranate peel polyphenols: An efficient and regenerative adsorbent for Congo red adsorption
Source abstract
Abstract
This study reports the fabrication of polyvinyl alcohol (PVA) based hydrogel with pomegranate peel polyphenols (PPP) via the freezing-thawing cycles method, employed as a cost-effective and efficient Congo Red (CR) adsorbent. Numerous techniques, including TGA, SEM, FTIR, XRD, DLS, BET, together with universal stretching machine, were employed to confirm the successful synthesis of PVA/PPP hydrogels with porous structures. When compared to pure PVA hydrogel, the PVA/PPP hydrogels showed greater adsorption capabilities for CR. The kinetic data coincided with pseudo-second-order modeling (R2 = 0.9927). Freundlich isotherm modeling was highly-conformed through adsorption (R2 = 0.9985). CR adsorption appeared to be exothermic and spontaneous, according to the thermodynamic study. Moreover, following five consecutive runs, adsorption effectiveness for PVA/PPP hydrogels remained above 88%, demonstrating their exceptional reusability. The mechanisms analysis revealed that the CR adsorption was facilitated by electrostatic attraction, hydrogen bonding, together with π-π stacking interplays.
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Research context
OpenAlex topics: Electrospun Nanofibers in Biomedical Applications · Nanocomposite Films for Food Packaging · Pomegranate: compositions and health benefits
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Effects of prepared gadolinium oxide-doped chitosan/PVA hydrogels on Congo red removal in water10.1007/s11270-022-05884-3 ↗
2. Dye and its removal from aqueous solution by adsorption: a review10.1016/j.cis.2014.04.002 ↗
3. Construction of double network gel adsorbent and application for pollutants removal from aqueous solution
4. Novel magnetic chitosan/poly(vinyl alcohol) hydrogel beads: preparation, characterization and application for adsorption of dye from aqueous solution10.1016/j.biortech.2011.11.057 ↗
5. A nanofibrous composite membrane of PLGA–chitosan/PVA prepared by electrospinning10.1016/j.eurpolymj.2006.04.021 ↗
6. Synthesis of hybrid hydrogel nano-polymer composite using graphene oxide, chitosan and PVA and its application in waste water treatment10.1016/j.eti.2020.100664 ↗
7. A review on polymeric hydrogel membranes for wound dressing applications: PVA-based hydrogel dressings10.1016/j.jare.2017.01.005 ↗
8. Fabrication of semi-interpenetrated PVA/PAMPS hydrogel as a reusable adsorbent for cationic methylene blue dye: isotherms, kinetics and thermodynamics studies10.1007/s00289-020-03456-1 ↗
9. Fabrication, characterization and application of chitosan/tea polyphenols blending hydrogels10.1007/s12034-022-02744-y ↗
10. Graphene oxide/poly(vinyl alcohol) hydrogels with good tensile properties and reusable adsorption properties10.1080/14658011.2016.1268755 ↗
11. Development of multifunctional hydrogel composite based on poly(vinyl alcohol-g-acrylamide) for removal and photocatalytic degradation of organic dyes10.1016/j.reactfunctpolym.2022.105207 ↗
12. Pomegranate (Punica granatum L.) a dry pericarp fruit with fleshy seeds10.1016/j.tifs.2020.02.014 ↗
13. Characterisation of pomegranate-husk polyphenols and semi-preparative fractionation of Punicalagin10.1002/pca.2691 ↗
14. Anticancer effect of pomegranate peel polyphenols against cervical cancer10.3390/antiox12010127 ↗
15. Punicalagin-loaded alginate/chitosan-Gallol hydrogels for efficient wound repair and hemostasis10.3390/polym14163248 ↗
16. Antimicrobial potential of pomegranate peel: a review10.1111/ijfs.13964 ↗
17. Hydrogen bonds autonomously powered gelatin methacrylate hydrogels with super-elasticity, self-heal and underwater self-adhesion for sutureless skin and stomach surgery and E-skin10.1016/j.biomaterials.2018.04.023 ↗
18. Tea eggs-inspired high-strength natural polymer hydrogels
19. Polyphenol-driving assembly for constructing chitin-polyphenol-metal hydrogel as wound dressing10.1016/j.carbpol.2022.119444 ↗
20. Multi-functional magnetic hydrogels based on Millettia speciosa champ residue cellulose and chitosan: highly efficient and reusable adsorbent for Congo red and Cu2+ removal10.1016/j.cej.2021.130198 ↗
21. Preparation and characterization of chitosan/poly(vinyl alcohol) chemically crosslinked blends for biomedical applications10.1016/j.carbpol.2008.11.015 ↗
22. Influence of natural and synthetic crosslinking reagents on the structural and mechanical properties of chitosan-based hybrid hydrogels10.1016/j.carbpol.2016.06.036 ↗
23. Studies of chitosan. I. Preparation and characterization of chitosan/poly(vinyl alcohol) blend films10.1002/app.26257 ↗
24. Tough porous nanocomposite hydrogel for water treatment10.1016/j.jhazmat.2021.126754 ↗
25. Porous biochar composite hydrogel for effective removal of low-concentration methylene blue from wastewater10.1007/s10965-022-03295-w ↗
26. Facile preparation of self-assembled chitosan-based composite hydrogels with enhanced adsorption performances10.1016/j.colsurfa.2020.124860 ↗
27. Tea polyphenol/glycerol-treated double-network hydrogel with enhanced mechanical stability and anti-drying, antioxidant and antibacterial properties for accelerating wound healing10.1016/j.ijbiomac.2022.03.128 ↗
28. Direct regeneration of hydrogels based on lemon peel and its isolated microcrystalline cellulose: characterization and application for methylene blue adsorption10.1016/j.ijbiomac.2021.09.063 ↗
29. Adsorption of organic molecules from aqueous solutions on carbon materials10.1016/j.carbon.2003.09.022 ↗
30. Preparation and characterization of a new Bis-uracil chitosan-based hydrogel as efficient adsorbent for removal of anionic Congo red dye10.3390/polym15061529 ↗
31. Modified β-Cyclodextrin hydrogel for selective adsorption and desorption for cationic dyes10.1016/j.colsurfa.2022.130912 ↗
32. Enhancing the textile dye removal from aqueous solution using cobalt ferrite nanoparticles prepared by insertion of fulvic acid10.1007/s10904-019-01355-1 ↗
33. Synthesis, and characterization of chitosan bearing pyranoquinolinones moiety for textile dye adsorption from wastewater10.2166/wst.2020.097 ↗
34. A facile pyrolysis synthesis of Ni doped Ce2O3@CeO2/CN composites for adsorption removal of Congo red: activation of carbon nitride structure10.1016/j.seppur.2022.122505 ↗
35. Color removal from model dye effluent using PVA-GA hydrogel beads10.1016/j.jenvman.2020.111797 ↗
36. Graphene oxide, kaolinite clay and PVA-derived nanocomposite aerogel as a regenerative adsorbent for wastewater treatment applications10.1016/j.jece.2022.108597 ↗
37. Defect-mediated hydroxylation of multi-walled carbon nanotubes as metal-free catalysts to enhance catalytic performance for oxidative dehydrogenation of ethylbenzene using CO210.1016/j.jcou.2019.02.011 ↗