Preparation and structural characterization of zwitterionic surfactant intercalated into NiZn-layered hydroxide salts |
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| Affiliation: | 1. School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, PR China;2. College of Chemistry, Nankai University, Tianjin 300071, PR China;1. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, PR China;2. Jiangxi Key Laboratory of Advanced Ceramic Materials, Department of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333001, PR China;1. School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210046, PR China;2. Wuhan National Laboratory for Optoelectronics-School of Physics, Huazhong University of Science and Technology, Wuhan 430074, PR China;1. Leibniz-Institut für Festkörper- und Werkstoffforschung (IFW) Dresden, D-01171 Dresden, Germany;2. Dipartimento di Fisica and Unità CNISM di Pavia, Università di Pavia, I-27100 Pavia, Italy;3. Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland;4. National Physical Laboratory (CSIR), New Delhi 110012, India;5. Dipartimento di fisica e Scienze della Terra, parco Area delle Scienze, 7A, 43124 Parma, Italy;6. Institut für Festkörperphysik, Technische Universität Dresden, D-01062 Dresden, Germany |
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| Abstract: | Three zwitterionic surfactants, dodecyl dimethyl carboxylbetaine (DCB), dodecyl dimethyl sulfobetaine (DSB) and N-dodecyl-β-aminoprpionate (DAP), intercalated into NiZn-layered hydroxide salts (NZL-DCB, NZL-DSB and NZL-DAP) were synthesized by the coprecipitation method. The effect of surfactant content, pH, temperature and time of hydrothermal treatment on preparation was investigated and discussed. The NZL-DCB, NZL-DSB and NZL-DAP were characterized by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetry analysis and differential thermal analysis (TGA/DTA). The results showed that basal spacings of NZL-DCB, NZL-DSB and NZL-DAP were around 3.45, 3.68 and 3.94 nm, respectively. DCB, DSB and DAP probably form an overlapped bilayer in the gallery. TGA/DTA data indicated that NZL-DCB, NZL-DSB and NZL-DAP displayed three loss weight stages: loss of adsorbed and structural water, dehydroxylation of matrix and decomposition of nitrate ions, decomposition and combustion of surfactants. Furthermore, chemical analysis data, BET surface area and scanning electron microscopic (SEM) were also measured and analyzed. |
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| Keywords: | Nanostructures Chemical synthesis X-ray diffraction Thermogravimetric analysis (TGA) Infrared spectroscopy |
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