Adsorption characteristics of crystal violet dye by different types of hydrogels

作者：Zhang Qing Song^*; Peng Zhe; Zhao Yi Ping; Chen Li; Ma Jing

来源：Journal of Materials Engineering, 2011, (12): 20-24.

• Acrylamides
• Adsorption characteristic
• Best choice
• Cross linking agents
• Crosslinker
• Crystal violet
• Isopropylacrylamide
• Magnesium silicates
• Methylene bisacrylamide
• Nano clays
• Swelling ratio

The four types of hydrogels using acrylamide(AM) and isopropylacrylamide(NIPAM) as monomer, methylene-bis-acrylamide (MBA) and inorganic nanoclay lithium magnesium silicate hydrate (LMSH) as chemical and physical cross-linker, respectively, were prepared by free-radical polymerization in aqueous solution. The results show that, comparing with hydrogels cross-linked by MBA, the polyAM and polyNIPAM hydrogels using LMSH as physical cross-linking agent presents higher swelling ratios and lots of pore. The adsorption amount of crystal violet (CV) on polyAM and polyNIPAM hydrogels increases 5-8 times. In terms of adsorption and using effect, polyNIPAM hydrogel cross-linked by LMSH is the best choice for removing CV dye.

• 出版日期2011
• 单位天津工业大学