The formation of vesicles by N-dodecyl-N-methylpyrrolidinium bromide ionic liquid/copper dodecyl sulfate and application in the synthesis of leaflike CuO nanosheets |
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| Authors: | Mingwei Zhao Jie Yuan Liqiang Zheng |
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| Affiliation: | 1. Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, People’s Republic of China
2. Department of Oilfield Chemistry, College of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong, 266555, People’s Republic of China
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| Abstract: | The phase behavior of the mixed catanionic surfactants in aqueous solution, composed of the long-chain ionic liquid (IL) N-dodecyl-N-methylpyrrolidinium (C12MPB) and a divalent metal surfactant copper dodecyl sulfate (Cu(DS)2·4H2O), was investigated. The phase diagram of the catanionic system was mapped through visual observation and electrical conductivity measurement. The formation of vesicles was confirmed in the lamellar phase (Lα) through transmission electron microscopy (TEM). Rheological measurements were used to study the macroscopic properties of the birefringent Lα phase. Electrostatic and hydrophobic interactions are regarded as the main driving forces for the formation of vesicles. Furthermore, the vesicles were successfully used as the templates to prepare the leaflike CuO nanomaterials. |
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