化工进展 ›› 2017, Vol. 36 ›› Issue (05): 1825-1830.DOI: 10.16085/j.issn.1000-6613.2017.05.033

• 材料科学与技术 • 上一篇    下一篇

桥连双亚胺介孔材料的制备及其表征

谢慧琳1, 龙湘南1, 胡文斌1,2, 陈秀莹1, 贾振宇1, 刘其海1, 周新华1   

  1. 1. 仲恺农业工程学院化学化工学院, 广东 广州 510225;
    2. 中山大学惠州研究院, 广东 惠州 516081
  • 收稿日期:2016-09-26 修回日期:2017-01-13 出版日期:2017-05-05 发布日期:2017-05-05
  • 通讯作者: 胡文斌,教授,硕士生导师。
  • 作者简介:谢慧琳(1991-),女,硕士研究生,从事介孔材料和催化剂合成与应用研究。E-mail:787335791@qq.com。
  • 基金资助:
    国家自然科学基金(21476272,21376280,21546003)、广东省科技厅项目(2014A010105049,2015A040404044)、广东省自然科学基金(2015A030313595,2015A030313599)及广东大学生科技创新培育专项资金项目(pdjh2016b0251)

Preparation and characterization of double imine bridged mesoporous silica

XIE Huilin1, LONG Xiangnan1, HU Wenbin1,2, CHEN Xiuying1, JIA Zhenyu1, LIU Qihai1, ZHOU Xinhua1   

  1. 1. College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China;
    2. Huizhou Research Institute of Sun Yat-sen University, Huizhou 516081, Guangdong, China
  • Received:2016-09-26 Revised:2017-01-13 Online:2017-05-05 Published:2017-05-05

摘要: 以自制双亚胺硅烷偶联剂和正硅酸乙酯为硅源,十六烷基三甲基溴化铵(CTAB)/聚丙烯酸钠(PAANa)为混合模板剂,通过共缩聚法合成桥连双亚胺席夫碱功能化介孔材料。利用红外光谱(FTIR)、氮气吸附-脱附、X射线衍射(XRD)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)对桥连双亚胺介孔材料进行了表征,着重探讨了不同PAANa用量对介孔材料的结构和形貌的影响,并将其应用于重金属离子的吸附。结果表明,PAANa用量对桥连双亚胺介孔材料的比表面积、孔容积和有序度都有一定的影响;当PAANa的加入量为0.01%时,功能化介孔材料(PMOS0.01)展现出较好的形貌、有序度和比表面积。此外,在酸性条件下,PMOS0.01对Cr(Ⅵ)的吸附量为289.24mg/g;而在碱性条件下,PMOS0.01对Cu(Ⅱ)的吸附量为276mg/g。

关键词: 纳米材料, 双亚胺, 制备, 吸附, 重金属, 共缩聚法

Abstract: Using self-made double imine silane coupling agent and ethyl silicate as silicon source,cetyl trimethyl ammonium bromide/sodium polyacrylate (CTAB/PAANa) as hybrid template agent,we synthesized double imine bridged functionalized mesoporous materials through copolycondensation method. And the structure of synthesized silicas were characterized by fourier transform infrared spectroscopy (FTIR),N2 adsorption-desorption,X-ray diffraction assay (XRD),scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Besides,the effects of dosage of sodium polyacrylate (PAANa) on its structure and morphology were emphatically investigated. The silicas were then applied in adsorption of heavy metal ions. The result showed that amount of PAANa had an effect on the specific surface area,pore volume and the degree of order of mesoporous materials. While the dosage of PAANa was 0.01%,mesoporous silicone (PMOS0.01) showed good morphology and degree of order. Moreover,under acidic condition,the adsorption capacity of Cr (Ⅵ) was 289.24mg/g,while that of Cu (Ⅱ) was 276mg/g under alkaline condition.

Key words: nano-material, double imine bridged, preparation, adsorption, heavy metal, copolymerization

中图分类号: 

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn