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Poly(2-acrylamido-2-methylpropane Sulfonic Acid) Grafted Magnetic Chitosan Microspheres: Preparation, Characterization and Dye Adsorption

Poly(2-acrylamido-2-methylpropane Sulfonic Acid) Grafted Magnetic Chitosan Microspheres: Preparation, Characterization and Dye Adsorption

Bincheng Xu, Huaili Zheng, Yongjuan Wang, Yanyan An, Kun Luo, Chun Zhao, Wenying Xiang

Int J Biol Macromol. 2018 Jun;112:648-655.

PMID: 29421492

Abstract:

A novel chitosan-based magnetic adsorbent [poly(2-acrylamido-2-methylpropane sulfonic acid) grafted magnetic chitosan microspheres, PMCMs] was successfully fabricated via free radical polymerization for effectively removing the cationic dye methylene blue (MB). The effects of initial solution pH (1.0-10.0), temperature (30-50°C), contact time (0-660min) and initial concentration (50-1600mg/L) were studied. The results indicated that the adsorption capacity increased with the increasing of initial solution pH and temperature. The adsorption kinetic and adsorption equilibrium data fitted closely to the pseudo-second-order kinetic model and Langmuir isotherm model respectively, confirming monolayer adsorption. The maximum adsorption capacity of PMCMs for MB at initial solution 9.0 were 1000, 1250 and 1428mg/g at 30, 40 and 50°C, respectively. Furthermore, the magnetic microspheres could be easily separated using a magnet and effectively regenerated after finishing the treatment process. Therefore, PMCMs are promising candidates for the removal of dye from wastewater.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP27119079	Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) solution		27119-07-9	Price

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