Study on Preparation and Interlayer Ion State of Fe/Ni Pillared Motmorillonite
Fe/Ni pillared montmorillonite is synthesized by precursor method.Organic pillared montmorillonite is prepared first by ion exchange with Cetyltrimethyl ammonium bromide (CTAB) using Ca-montmorillonite as raw material after pretreatment.Fe/Ni pillaring agents is prepared by copolymerization method.Then the Fe/Ni pillared montmorillonite is synthesized through ion exchanging and calcining.The structural changes and thermostability were studied through X-ray diffraction, X-ray fluorescence analysis, infrared spectroscopy and TG.analysis.The concentration of CTAB has a significant effect on interlayer space height of momtmorillonite, which can reach 3.9756nm when the concentration is 3CEC.The interlayer space height of Fe/Ni pillared montmorillonite can reach 2.4001nm when when n(Fe3+):n(Ni2+) is equal to 7:3, and it remains 1.7876nm after calcined at 400℃ for 2h.This indicates that thermostability is good.Pillaring agents embedded into montmorillonite interlayer, and bonding reaction happened between the skeleton of montmorillonite (Si4O10n) and pillaring agents, which forms the bonding of Si-M (Fe or Ni).
Pillared montmorillonite CTAB Fe/N prepararion interlayer ion
Xi-xi Zhu Li Wang Wei-jia Gao
College of Chemical and Environmental Engineering, Shandong University of Science and Technology, QingDao, China
国际会议
The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)
哈尔滨
英文
267-272
2013-08-23（万方平台首次上网日期，不代表论文的发表时间）