The Isoelectric Point and the Points of Zero Charge of Fe-Al-Mg Hydrotalcite-like Compounds

查看全文 作　　者：[1]DongXiangLI;[1]WanGuoHOU;[1]ShuPingLI;[1]MingTuHAO;[2]GaoYongZHANG 机构地区：[1]KeyLaboratryforColloidandInterfaceChemistryofEducationMinistry,ShandongUniversity,Jinan250100;[2]ChinaResearchInstituteofDailyChemicalIndustry,Taiyuan030001 出　　处：《Chinese Chemical Letters》索引2004年第15卷第2期,共4页 摘　　要：The relation of the isoelectric point (IEP) and the point of zero net charge (PZNC) of the hydrotalcite-like compounds was discussed. It was found that the IEP does not equal to the PZNC and the IEP is higher than the PZNC. The structural positive charges existing in the HTlc, which cause the difference between the IEP and the PZNC. The effects of the structural positive charges of the HTlc on its IEP and PZNC are the same as the specific adsorption of metal cations. 关 键 词：等电位点 零负荷点 铁 铝 镁 水滑石 络合物