无机化学学报

多壁碳纳米管/聚丙烯酸/MOF-5的制备及其N₂吸附性能

Preparation and N₂ Adsorption Properties of Multi-walled Carbon Nanotubes/Polyacrylic Acid/MOF-5

作者	单位	E-mail
金哲	长春理工大学材料科学与工程学院, 长春 130031 吉林烟草工业有限责任公司, 延吉 133001
汤凯	郑州轻工业学院材料与化学工程学院, 郑州 410002
胡亚平	郑州轻工业学院材料与化学工程学院, 郑州 410002
吕景文	长春理工大学材料科学与工程学院, 长春 130031	chenzj@zzuli.edu.cn
陈志军	郑州轻工业学院材料与化学工程学院, 郑州 410002

摘要: 用化学修饰法制备出复合物多壁碳纳米管/聚丙烯酸(MWCNTs/PAA),用溶剂热法合成Zn₄O(1,4-benzenedicarboxylate)₃(MOF-5)和MWCNTs/PAA/MOF-5。通过XRD、FTIR、TG、HRTEM和比表面积和孔隙度分析仪对MWCNTs,MOF-5,MWCNTs/PAA和MWCNTs/PAA/MOF-5的结构和性质进行表征。结果表明:复合材料MWCNTs/PAA中PAA包覆在碳纳米管外壁上,含量为4.3%,在FTIR中有PAA特征官能团的吸收峰;MWCNTs/PAA/MOF-5和MOF-5的形貌一样,MWCNTs/PAA/MOF-5的热分解温度比MOF-5的提高了49℃;MOF-5和MWCNTs/PAA/MOF-5的N₂吸附曲线为Ⅰ型,77 K和100 kPa条件下,N₂的吸附量达到最大值,分别为265、299.03 cm³·g^-1。

关键词: 溶剂热法碳纳米管聚丙烯酸 MOF-5 N₂吸附

基金项目: 国家自然科学基金(No.20976168;21271160;21401170)河南省高校科技创新人才支持计划(No.2008HASTIT019)资助项目。

Abstract: The composite Multi-walled carbon nanotubes/Polyacrylic acid (MWCNTs/PAA) was prepared by chemical functionalization, and Zn₄O(1,4-benzenedicarboxylate)₃(MOF-5) and hybrid materials MWCNTs/PAA/MOF-5 were obtained by solvothermal method. The resulted samples were characterized by XRD, FTIR, TG, HRTEM, the specific surface area and porosity analyze. The experimental results show that the content of PAA uniformly coated on the surface of MWCNTs is 4.3%; the absorbance peaks of functional groups in PAA occured in the FTIR spectrum of composite MWCNTs/PAA; the morphology of MWCNTs/PAA/MOF-5 was similar to that of MOF-5; the thermal decomposition temperature of MWCNTs/PAA/MOF-5 raised 49℃ than MOF-5; N₂ adsorption curves of MOF-5 and MWCNTs/PAA/MOF-5 were typical Ⅰ; the maximum N₂ adsorption capacity of MWCNTs/PAA/MOF-5 and MOF-5 were respectively 265 and 299 cm³·g^-1 at 77 K and 100 kPa.

Keywords: solvothermal multi-walled carbon nanotubes polyacrylic acid MOF-5 N₂ adsorption

投稿时间：2014-10-21 修订日期：2014-12-25

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金哲,汤凯,胡亚平,吕景文,陈志军.多壁碳纳米管/聚丙烯酸/MOF-5的制备及其N₂吸附性能[J].无机化学学报,2015,31(4):725-730.

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