Hypercrosslinked Polymers Preparation VS Methylene Blue Adsorption
In the study,two kinds of hypercrosslinked polymers were prepared by polymerization of dichloromethyl aryl monomer with benzene or itself.The chemical and pore structure of above polymers were characterized by FT-IR and BET.The results showed that these polymers possessed high BET specific surface area (up to 1000 m2/g) and large pore volumes (up to 1.2cm3/g).Two commercial polymer adsorbent (XAD-4,H103) and two new synthesized polymeric adsorbents (BE-XDC,CMB-CMB) have been used for the adsorption of reactive dye methylene blue (MB) from aqueous solution,and the static capacity followed an order as: CMB-CMB(142.77mg/g) > BE-XDC(104.61mg/g) > H103(71.01mg/g) > XAD-4(53.85mg/g).The Equilibrium adsorption data of the four polymeric adsorptions were obtained and fitted very well to Freundlich model.The adsorption equilibrium time of CMB-CMB,BE-XDC resin were less than 200min,which were faster than that of XAD-4,H103.The free energy changes,ΔG for adsorption of MB on the four polymeric adsorbents in the aqueous solution was evaluated.The negative values of ΔG indicated that the overall adsorption processes were spontaneous and thermodynamically favorable.
Hypercrosslinked resin Adsorption Methylene blue
Linxiu Zhao Siguo Yuan Jiao Sha Shaobin Li
School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, China;School of Chemical School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
539-544
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）