A facile and environmentally friendly NaCl nonaqueous ionic liquid route to prepare crystalline beta-CaSiO3 nanowires

作者：Wang Wenzhong^*; Zhang Suyun; Wang Lijuan; Shi Honglong

来源：Materials Science and Engineering: C , 2013, 33(4): 2288-2293.

DOI：10.1016/j.msec.2013.01.060

• Biological materials
• Nanostructured materials
• Solid state reaction
• Crystal structure

We described an environmentally friendly and facile NaCl nonaqueous ionic liquid route for the first time to synthesize beta-CaSiO3 nanowires.beta-CaSiO3 nanowires were prepared by annealing precursor calcium silicate hydrate (CSH) nanostructures in NaCl nonaqueous ionic liquid, in which the precursor CSH nanostructures were first prepared by a facile one-step, solid state reaction, ground with both NaCl and surfactant nonyl phenyl ether (9) (NP-9), and heated at 850 degrees C for 2 h. beta-CaSiO3 nanowires were characterized by XRD, TEM and HRTEM. The comparative experiments have been conducted systemically to investigate the growth mechanism of beta-CaSiO3 nanowires, and the roles of salt NaCl nonaqueous ionic liquid and NP-9 on the formation of beta-CaSiO3 nanowires. The results demonstrated that both salt NaCl nonaqueous ionic liquid and surfactant NP-9 played key roles on the formation of beta-CaSiO3 nanowires. A rational growth mechanism of beta-CaSiO3 nanowires has been proposed on the basis of experimental results.

• 出版日期2013-5-1
• 单位中央民族大学