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Synthesis and swelling characteristics of chitosan and CMC grafted sodium acrylate-co-acrylamide using modified nanoclay and examining its efficacy for removal of dyes.
Int J Biol Macromol. 2017 Sep; 102:1226-1240.IJ

Abstract

Chitosan/carboxy methyl chitosan (CMC) grafted sodium acrylate-co-acrylamide/nanoclay superabsorbent nanocomposites have been synthesized in this study by following conventional and microwave assisted grafting methods. Microwave assisted grafting method showed higher grafting yield with enhanced reaction rate. Effect of nanoclay on water adsorption and swelling behaviour of both the composites in acidic, neutral and alkaline medium has been studied. Results showed enhanced swelling rate and water adsorption of both composites after adding 5% of silane treated nanoclay. Dye adsorption capacity of both the composites has been investigated for crystal violet, napthol green and sunset yellow dyes. It was observed that addition of 5% nanoclay enhanced the dye adsorption in both the composites. Langmuir and Freundlich isotherm models have been used to explain the dye adsorption capabilities. The chitosan and CMC nanocomposites follow both the models with R2 value more than 0.97. Both the composites showed enhanced dye adsorption with 5% nanoclay. Effect of pH on dye adsorption has also been studied in both the composites. Chitosan nanocomposites showed better performance in dye removal as compared to CMC nanocomposites.

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Authors+Show Affiliations

Nagarpita MV
The Energy and Resources Institute (TERI), SRC, Bangalore 560071, India.
Roy P
The Energy and Resources Institute (TERI), SRC, Bangalore 560071, India.
Shruthi SB
The Energy and Resources Institute (TERI), SRC, Bangalore 560071, India.
Sailaja RRN
The Energy and Resources Institute (TERI), SRC, Bangalore 560071, India. Electronic address: sailajab@teri.res.in.

MeSH

AcrylamideAcrylatesAdsorptionAluminum SilicatesChemistry Techniques, SyntheticChitosanClayColoring AgentsHydrogen-Ion ConcentrationKineticsNanocompositesTemperatureWaterWater Pollutants, Chemical

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28479393

Citation

Nagarpita, M V., et al. "Synthesis and Swelling Characteristics of Chitosan and CMC Grafted Sodium Acrylate-co-acrylamide Using Modified Nanoclay and Examining Its Efficacy for Removal of Dyes." International Journal of Biological Macromolecules, vol. 102, 2017, pp. 1226-1240.
Nagarpita MV, Roy P, Shruthi SB, et al. Synthesis and swelling characteristics of chitosan and CMC grafted sodium acrylate-co-acrylamide using modified nanoclay and examining its efficacy for removal of dyes. Int J Biol Macromol. 2017;102:1226-1240.
Nagarpita, M. V., Roy, P., Shruthi, S. B., & Sailaja, R. R. N. (2017). Synthesis and swelling characteristics of chitosan and CMC grafted sodium acrylate-co-acrylamide using modified nanoclay and examining its efficacy for removal of dyes. International Journal of Biological Macromolecules, 102, 1226-1240. https://doi.org/10.1016/j.ijbiomac.2017.04.099
Nagarpita MV, et al. Synthesis and Swelling Characteristics of Chitosan and CMC Grafted Sodium Acrylate-co-acrylamide Using Modified Nanoclay and Examining Its Efficacy for Removal of Dyes. Int J Biol Macromol. 2017;102:1226-1240. PubMed PMID: 28479393.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Synthesis and swelling characteristics of chitosan and CMC grafted sodium acrylate-co-acrylamide using modified nanoclay and examining its efficacy for removal of dyes. AU - Nagarpita,M V, AU - Roy,Pratik, AU - Shruthi,S B, AU - Sailaja,R R N, Y1 - 2017/05/04/ PY - 2016/12/16/received PY - 2017/04/25/revised PY - 2017/04/26/accepted PY - 2017/5/10/pubmed PY - 2018/3/7/medline PY - 2017/5/9/entrez KW - Dye adsorption KW - Superabsorbent KW - Swelling SP - 1226 EP - 1240 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 102 N2 - Chitosan/carboxy methyl chitosan (CMC) grafted sodium acrylate-co-acrylamide/nanoclay superabsorbent nanocomposites have been synthesized in this study by following conventional and microwave assisted grafting methods. Microwave assisted grafting method showed higher grafting yield with enhanced reaction rate. Effect of nanoclay on water adsorption and swelling behaviour of both the composites in acidic, neutral and alkaline medium has been studied. Results showed enhanced swelling rate and water adsorption of both composites after adding 5% of silane treated nanoclay. Dye adsorption capacity of both the composites has been investigated for crystal violet, napthol green and sunset yellow dyes. It was observed that addition of 5% nanoclay enhanced the dye adsorption in both the composites. Langmuir and Freundlich isotherm models have been used to explain the dye adsorption capabilities. The chitosan and CMC nanocomposites follow both the models with R2 value more than 0.97. Both the composites showed enhanced dye adsorption with 5% nanoclay. Effect of pH on dye adsorption has also been studied in both the composites. Chitosan nanocomposites showed better performance in dye removal as compared to CMC nanocomposites. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/28479393/Synthesis_and_swelling_characteristics_of_chitosan_and_CMC_grafted_sodium_acrylate_co_acrylamide_using_modified_nanoclay_and_examining_its_efficacy_for_removal_of_dyes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(16)32922-1 DB - PRIME DP - Unbound Medicine ER -