Synthesis,characterization,evaluation of potassium tertatitanium whisker surface Ni(II) ion-imprinted polymers and selective adsorption of nickel
Ni(II) ion-imprinted polymers(Ni(II)-IIPs) was synthesis by the method of surface ion-imprinting in combination with sol-gel process,and prepared by the Ni(II) as template ion,Chitosan(CTS) as functional monomer,γ-Glycidoxypropyl trimethoxysilane (KH560) as linking agent,potassium tertatitanium whisker as carrier.After removing Ni(II) ion from the polymer,Ni(II)-IIPs capable of selectively rebinding Ni(II) ion were obtained.The prepared material was characterized by using the infrared spectra (IR) and scanning electron microscopy (SEM).A batch of adsorption experiments were performed to evaluate its adsorption behavior of Ni(II) using inductively coupled plasma atomic emission spectrometry (ICP-AES).The effect of solution pH,sorbent amount on the extraction of Ni(II) from aqueous solutions were studied.The maximum adsorption capacity of Ni(II) on polymer beads was about 33.1 mg·g-1.The Ni(II)-IIPs have a greater affinity for Ni(II) with respect to Cd(II),Co(II),Cu(II),Hg(II),Mg(II),Mn(II),Zn(II) and Pb(II) ions.Ni(II)-IIPs enabled the selective extraction of Ni(II) from a complex matrix.The prepared functional polymer was shown to be promising for selective pre-separation and enrichment of trace Ni(II) in environmental samples.
Ni(II)-IIPs surface ion-imprinting synthesis selective adsorption nickel
Wan zhen XU Ping ping XU Wei ZHOU Yongsheng YAN
School of the Environment,Jiangsu University,Zhenjiang 212013,China School of Chemistry and chemical Engineering,Jiangsu University,Zhenjiang 212013,China
国际会议
哈尔滨
英文
644-650
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）