Applied Chemistry Department, Faculty of Technology and Engineering, The M.S. University of Baroda, Vadodara 390001, Gujarat, India.
J Hazard Mater. 2009 Dec 15;172(1):129-37. doi: 10.1016/j.jhazmat.2009.06.154. Epub 2009 Jul 4.
An advanced inorganic ion exchanger, zirconium titanium phosphate (ZTP) of the class of tetravalent bimetallic acid (TBMA) salt has been synthesized by sol-gel route. ZTP has been characterized for ICP-AES, TGA, FTIR and XRD. Chemical stability of the material in various media-acids, bases and organic solvents has been assessed. Cation exchange capacity (CEC) and effect of calcination (100-500 degrees C) on CEC has also been studied. Distribution behaviour of metal ions Co2+, Ni2+, Cu2+, Zn2+ (d-block), Cd2+, Hg2+, Pb2+, Bi3+ (heavy) and La3+, Ce3+, Th4+, UO(2)2+ (f-block) towards ZTP has been studied and distribution coefficient (K(d)) determined in aqueous as well as various electrolyte media/concentrations. Based on the differential selectivity, breakthrough capacity (BTC) and elution behaviour of various metal ions towards ZTP, a few binary and ternary metal ion separations have been carried out.
一种先进的无机离子交换剂，四价双金属酸（TBMA）盐类的钛锆磷酸盐（ZTP）已通过溶胶-凝胶法合成。ZTP 已通过 ICP-AES、TGA、FTIR 和 XRD 进行了表征。评估了材料在各种介质（酸、碱和有机溶剂）中的化学稳定性。还研究了煅烧（100-500°C）对CEC 的影响。研究了金属离子 Co2+、Ni2+、Cu2+、Zn2+（d 区）、Cd2+、Hg2+、Pb2+、Bi3+（重）和 La3+、Ce3+、Th4+、UO（2）2+（f 区）对 ZTP 的分配行为，并在水相和各种电解质介质/浓度下测定了分配系数（K(d)）。基于对 ZTP 的各种金属离子的微分选择性、穿透容量（BTC）和洗脱行为，已进行了一些二元和三元金属离子分离。
