一种新型膦酸锆孔材料的合成及其对金属离子的吸附性质  

A New Porous Zirconium Phosphonate Hybride Material and Its Adsorption Properties

作　　者：Abubaker Abutartour Lotfia El Majdoub 史亚赛 李妮丽 徐庆红[1] ABUBAKER Abutartour LOTFIA El-Majdoub SHI Ya-Sai LI Ni-Li XU Qing-Hong(State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China)

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029

出　　处：《无机材料学报》2017年第3期305-312,共8页Journal of Inorganic Materials

基　　金：国家自然科学基金(U1362113)~~

摘　　要：骨架含强配位基的有机无机杂化多级孔材料合成是目前吸附研究的一个重要领域。以bis(hexamethylene)triamino-N,N-bisacetyl-phosphonic acid和ZrOCl_2·8H_2O为原料、应用水热合成技术合成了一种新型膦酸锆多级孔材料Zr PTA,并通过FT-IR、TGA、XRD、XPS、SEM以及元素分析等手段对制备产物进行了表征。研究结果表明,ZrPTA具有棒状微形貌,其内部存在大量直径为1.38 nm和1.93 nm的微孔以及直径为2.99 nm的介孔,其表面积为112.2 m^2/g。ZrPTA对水溶液中Pb^(2+)、Cu^(2+)和Cd^(2+)三种金属离子具有良好的吸附作用,最大吸附量分别为742.7、689.8和627.0 mg/g,远远高于文献报道值。这一性质使Zr PTA具有潜在的废水处理功效,显示出诱人的应用前景。Synthesis of organic-inorganic hybrid hierarchical porous materials with strong ligand in framework is an important field of current research in adsorption. A new kind of inorganic/organic hierarchical zirconium phos- phonate material （ZrPTA） with porous structure was prepared from bis（hexamethylene）triamino-N, N-bisacetyl- phosphonic acid and ZrOC12-8H20 in water solution by using hydrothermal synthesis technology. The samples were characterized by FT-IR spectroscope, TGA, XRD, XPS, SEM and element analysis. The results show that the mate- rial possesses a rod-like morphology, and the rods contain micropores of 1.38 nm and 1.93 nm in diameter, mesopores of 2.99 nm in diameter, and a surface area of-112.2 m2/g. The as-prepared ZrPTA is more efficient in removing Pb2＋, Cu2＋ and Cd2＋ from wastewater. Its maximum adsorption capacities for Pb2＋, Cu2＋ and Cd2＋ are 742.7, 689.8 and 627.0 mg/g, respectively, which is much higher than the maximum adsorption capacities of the adsorbents reported. The perfect properties make the material good prospects in application as an adsorbent in wastewater processing.

关 键 词：膦酸锆 孔材料 水热合成 内表面 吸附 

分 类 号：TQ174[化学工程—陶瓷工业]