Polyvinyl alcohol-montmorillonite composites for water purification: Analysis of clay mineral cation exchange and composite particle synthesis

Brown, Karlena; Mendoza, Mary; Tinsley, Tamanika; Bee-DiGregorio, Madeleine Y.; Bible, Michael; Brooks, Jerin L.; Colorado, Melvin; Esenther, Jacob; Farag, Andrew; Gill, Rachel; Kalivas, Eleni N.; Lara, Raquel Villalobos; Lutz, Alex; Nazaire, Jasmine; Mazo, Alicia Rasines; Rodriguez, Rebeca S.; Schwabacher, James C.; Zestos, Alexander G.; Hartings, Matthew R.; Fox, Douglas M.

doi:10.1016/j.poly.2021.115297

Cited by 7 publications

(1 citation statement)

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“…Polyvinyl alcohol (PVA) and carboxymethyl cellulose (CMC) was selected as the base polymers. Both these polymers are eco-friendly and have received great attention for water purification applications 49 , 50 . The film was synthesised using a cost-effective and simple technique; solvent casting.…”

Section: Introductionmentioning

confidence: 99%

Ecofriendly and low-cost bio adsorbent for efficient removal of methylene blue from aqueous solution

Radoor

Karayil²,

Jayakumar

et al. 2022

Sci Rep

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A novel bio adsorbent was fabricated from turmeric, polyvinyl alcohol and carboxymethyl cellulose for MB dye removal. The physicochemical, antibacterial and biodegradable nature of the film was evaluated using scanning electron microscopy, optical microscopy, universal testing machine, water contact angle, thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction, agar disc diffusion method and soil degradability. The inclusion of turmeric into PVA/CMC film improves the biodegradability, antibacterial activity and thermomechanical property of the films. PVA/CMC/TUR film displayed good MB adsorption capacity (qe: 6.27 mg/g) and maximum dye adsorption (R%; 83%) and was achieved at initial dye concentration of 10 mg/L with contact time 170 min at room temperature. The adsorption data of MB on PVA/CMC/TUR film was evaluated using four models Langmuir, Freundlich, Temkin and D-R isotherms. The different kinetic of adsorption (pseudo-first order, pseudo-second order and intraparticle diffusion model) was also applied for adsorption of MB on the films. The experimental result suggests that PVA/CMC/TUR films are an alternate cheap adsorbent for water treatment.

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Section: Introductionmentioning

confidence: 99%