We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Kinetics and thermodynamics of adsorption of Cu<sup>2+</sup> and methylene blue to casein hydrogels.
- Authors
Yi, Juzhen; Li, Yongqiu; Yang, Liqun; Zhang, Li-Ming
- Abstract
Several casein hydrogels were synthesized using glutaraldehyde as a crosslinker. The hydrogel prepared from 10 wt% casein and 5 wt% glutaraldehyde at pH = 7.5 showed the best adsorption performance for Cu2+ and methylene blue (MB). The morphology and thermal stability of the hydrogels were characterized by Fourier transform infrared spectrophotometry (FTIR), field emission scanning electron microscopy (FESEM) and thermo gravimetric analysis (TGA). Adsorption data were observed to fit well to pseudo second-order kinetics and the Freundlich-Langmuir switch model. The thermodynamic parameters of the adsorption showed that the adsorption of Cu2+ and MB into casein hydrogel was a spontaneous process.
- Subjects
METHYLENE blue; ADSORPTION kinetics; HYDROGELS; CASEINS; FIELD emission electron microscopy; GRAVIMETRIC analysis
- Publication
Journal of Polymer Research, 2019, Vol 26, Issue 9, pN.PAG
- ISSN
1022-9760
- Publication type
Article
- DOI
10.1007/s10965-019-1870-x