Robust polymeric hydrogel using rod-like amidodiol as crosslinker: Studies on adsorption kinetics and mechanism using dyes as adsorbate

Herein, we report the preparation of robust polyacrylic acid hydrogel using rod‐like amidodiol as physical crosslinker. Polyacrylic acid–amidodiol hydrogels were characterized for its chemical structure, rheology, swelling, diffusion, and adsorption properties. Kinetics and mechanism of adsorption w...

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Bibliographic Details
Published in:Journal of applied polymer science 2014-09, Vol.131 (18), p.9626-n/a
Main Authors: Narayanan, Rohini Kuttiplavil, Nethran, Navya Kuttamassery, Devaki, Sudha Janardanan, Rao, Talasila Prasada
Format: Article
Language:English
Subjects:
Adsorbates
Adsorbents
Adsorption
Applied sciences
Crosslinking
Dyes
dyes/pigments
Exact sciences and technology
gels
Hydrogels
Industrial wastewaters
Kinetics
Materials science
Methylene blue
Multilayers
Organic polymers
Physicochemistry of polymers
Pollution
Polyacrylic acid
Polymers
Properties and characterization
Rheological properties
Rheology
Rhodamine 6G
Robustness
Shape effects
Solution and gel properties
Swelling
Textiles
Wastewater
Wastewaters
Water treatment and pollution
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Summary:Herein, we report the preparation of robust polyacrylic acid hydrogel using rod‐like amidodiol as physical crosslinker. Polyacrylic acid–amidodiol hydrogels were characterized for its chemical structure, rheology, swelling, diffusion, and adsorption properties. Kinetics and mechanism of adsorption were investigated by UV–visible spectroscopy using dyes such as rhodamine 6G and methylene blue as adsorbate. Results suggested pseudo second‐order kinetics of multilayer adsorption and hydrogel could retain its shape even after swelling. Effect of amidodiol on the adsorption of dyes was investigated. Extent of interaction between adsorbate–adsorbate and adsorbent–adsorbate was studied using Gile's model. The generated results may provide a low cost simple technology for developing robust polymeric hydrogel adsorbent. The adsorption characteristics results can be exploited for setting up pilot plant adsorbent for the removal of such organic toxic materials. Finally, we have demonstrated its application for the removal of dyes from waste water collected from textile and paper industries. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40908.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.40908