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Citation: YI Ju-Zhen, ZHANG Shu-Jing, ZHANG Li-Ming. Synthesis and Decoloring Properties of Sodium Humate/Polyisopropylacrylamide/Clay Composite Hydrogels[J]. Chinese Journal of Applied Chemistry, ;2009, 26(5): 551-556. shu

Synthesis and Decoloring Properties of Sodium Humate/Polyisopropylacrylamide/Clay Composite Hydrogels

1.
Institute of Polymer Science, College of Chemistry and Chemical Engineering Sun Yat-Sen University, Guangzhou 510275

Corresponding author: YI Ju-Zhen,
Received Date: 19 April 2008
Available Online: 20 September 2008
Fund Project: 国家自然科学基金资助项目(20704044) (20704044)

A series of sodium humate/polyisopropylacrylamide/clay(SH/PNIPA/clay) hydrogels was synthesized by solution polymerization with acrylamide,clay and sodium humate(SH) as raw materials,ammonium persulfate(APS) as the initiator and N,N'-methylenebisacrylamide(MBA) as the crosslinker,respectively.Their swelling and decoloring properties were examined.Experimental results show that there exists hydrogen bonding between SH and PNIPA;the absorption and desorption of methylene blue(MB) by hydrogels were influenced by temperature,SH content,clay content and initial MB concentration.Low temperature and 2% clay content favor the absorption and desorption.Appropriate SH amount of the hydrogels is crucial for the adsorption and desorption of MB.High initial MB concentration favors the adsorption of MB and low initial concentration favors the desorption of MB.
- sodium humate,
- polyisopropylacrylamide,
- clay,
- hydrogel,
- methylene blue
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