Abstract
In this study, poly(N-vinylpyrrolidone-co-methacrylic acid) (P(VP/MAA)) hydrogels prepared with gammaradiation were used for swelling, diffusion, and uptake of some cationic dyes which are Janus Green B (JGB) and Magenta (M). P(VP/MAA) hydrogels irradiated at 3.4 kGy were employed for swelling and diffusion studies in water and cationic dye solutions. The influence of dose, pH, relative amounts of monomers in VP/MAA monomer mixtures on swelling properties were investigated. P(VP/MAA) hydrogels were swollen in distilled water at pH 4.0, 7.0, and 9.0. P(VP/MAA) hydrogel containing 5 mole% methacrylic acid showed the maximum % swelling at pH 9.0 in water. Adsorption isotherms were plotted for JGB and M in P(VP/MAA) hydrogel systems. Consequently, it may be concluded that crosslinked P(VP/MAA) hydrogels may be successfully used in the purification of waste water containing certain textile dyes.
| Original language | English |
|---|---|
| Pages (from-to) | 735-743 |
| Number of pages | 9 |
| Journal | Fibers and Polymers |
| Volume | 16 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 13 Apr 2015 |
Keywords
- Adsorption
- Cationic dyes
- Hydrogel
- Poly(N-vinylpyrrolidone-co-methacrylicacid)
- Swelling
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