Swelling equilibria of novel propenamide/2-acrylamido-2-methyl-1-propanesulfonic acid/guar gum/clinoptilolite biohybrid hydrogels and application as a sorbent for BV1 removal

• Published in: Polymer bulletin (Berlin, Germany) Germany), 2021-07, Vol.78 (7), p.3625-3649
• Main Authors: Karadağ, Erdener, Ercan, Dilara, Üzüm, Ömer Barış, Kundakcı, Semiha
• Format: Article
• Language: English
• Subjects: Adsorption; Ammonium peroxodisulfate; Aqueous solutions; Cationic dyes; Characterization and Evaluation of Materials; Chemical partition; Chemistry; Chemistry and Materials Science; Complex Fluids and Microfluidics; Dyes; Free radical polymerization; Free radicals; Guar gum; Hydrogels; Infrared analysis; Organic Chemistry; Original Paper; Physical Chemistry; Polyethylene glycol; Polymer Sciences; Polymerization; Polymers; Soft and Granular Matter; Solution polymerization; Sorbents; Sorption; Swelling; Water absorption; Water treatment; Zeolites
• ISSN: 0170-0839; 1436-2449
• DOI: 10.1007/s00289-020-03285-2

A series of novel propenamide/2-acrylamido-2-methyl-1-propanesulfonic acid/guar gum/clinoptilolite biohybrid hydrogels were prepared by free radical solution polymerization using ammonium persulfate/ N,N,N’,N’ -tetramethylethylenediamine as redox initiating pair in the presence of poly(ethylene glycol) diacrylate as cross-linker. Swelling experiments were performed in water at 25 °C, gravimetrically. The hydrogels had high water absorbency. Equilibrium water uptake ratio ranges are 7.26–146.07 for the hydrogels. Diffusion behavior was investigated, and diffusion into hydrogels was found to be non-Fickian in character. FT-IR analysis was applied for characterization. Sorption of water-soluble cationic dye, basic violet 1, into the hydrogels was studied with the batch sorption technique at 25 °C. For equilibrium sorption studies, removal percentage, dye uptake performance, and partition coefficient of the hydrogels were investigated. The dye uptake performance values of the hydrogels varied between 1.15 × 10 –5 —2.03 × 10 –5  mol g −1 . The values for removal percentage of the hydrogels varied from 92.10–96.25%, and the values for partition coefficient of the hydrogels were between 11.67 and 25.69.