| The Isoelectric Point and the Points of Zero Charge of Fe-Al-Mg Hydrotalcite-like Compounds |
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| 作者姓名： | DongXiangLI WanGuoHOU ShuPingLI MingTuHAO GaoYongZHANG |
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| 作者单位： | [1]KeyLaboratryforColloidandInterfaceChemistryofEducationMinistry,ShandongUniversity,Jinan250100 [2]ChinaResearchInstituteofDailyChemicalIndustry,Taiyuan030001 |
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| 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.
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| 关 键 词： | 等电位点 零负荷点 铁 铝 镁 水滑石 络合物 |
The Isoelectric Point and the Points of Zero Charge of Fe-Al-Mg Hydrotalcite-like Compounds |
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| DongXiangLI WanGuoHOU ShuPingLI MingTuHAO GaoYongZHANG.The Isoelectric Point and the Points of Zero Charge of Fe-Al-Mg Hydrotalcite-like Compounds[J].Chinese Chemical Letters,2004,15(2):224-227. |
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| Authors: | Dong Xiang LI Wan Guo HOU Shu Ping LI Ming Tu HAO Gao Yong ZHANG Key Laboratry for Colloid and Interface Chemistry of Education Ministry Shandong University Jinan China Research Institute of Daily Chemical Industry Taiyuan |
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| Institution: | Dong Xiang LI1,Wan Guo HOU1*,Shu Ping LI1,Ming Tu HAO1,Gao Yong ZHANG1,2 1 Key Laboratry for Colloid and Interface Chemistry of Education Ministry,Shandong University,Jinan 250100 2 China Research Institute of Daily Chemical Industry,Taiyuan 030001 |
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| Abstract: | 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. |
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| Keywords: | Isoelectric point points of zero charge potentiometric titration hydrotalcite-like compounds |
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