Synthesis and characterization of Cd-Cr and Zn-Cd-Cr layered double hydroxides intercalated with dodecyl sulfate |
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| Authors: | Ying Guo Lan Zhao Jie-Sheng Chen Lin Xu |
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| Affiliation: | a State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
b Institute of Polyoxometalate Chemistry, College of Chemistry, Northeast Normal University, Changchun 130024, PR China |
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| Abstract: | Cd-Cr and Zn-Cd-Cr layered double hydroxides (CdCr-LDH and ZnCdCr-LDH) containing alkyl sulfate as the interlamellar anion have been prepared through a coprecipitation technique. The resulting compounds were characterized using X-ray diffraction, infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Magnetic property measurements indicate that antiferromagnetic interactions occur between the chromium ions in the two compounds at low temperatures. The introduction of zinc influences the ligand field of CrIII and the CrIII-CrIII interactions in the LDH compound. It is found that both CdCr-LDH and ZnCdCr-LDH can be delaminated by dispersion in formamide, leading to translucent and stable colloidal solutions. |
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| Keywords: | Layered double hydroxide Chromium Cadmium Zinc Magnetic properties |
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