A green and facile route to synthesize calcium silicate nanowires |
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| Authors: | L.Z. Pei L.J. Yang Y. Yang C.G. Fan W.Y. Yin J. Chen Q.F. Zhang |
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| Affiliation: | 1. School of Materials Science and Engineering, Institute of Molecular Engineering and Applied Chemistry, Key Lab of Materials Science and Processing of Anhui Province, Anhui University of Technology, Ma''anshan, Anhui 243002, PR China;2. Technique Center, China MCC17 Group Co., Ltd, Ma''anshan, Anhui 231001, PR China |
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| Abstract: | Large-scale single crystalline calcium silicate nanowires have been synthesized via a simple and facile hydrothermal route using nanoscale SiO2 and CaO powders as the starting materials. Xonotlite [Ca6(Si6O17)(OH)2] nanowires were first achieved after hydrothermal treatment at 220 °C for 12 h. After being calcinated at 800 °C for 1 h, the Ca6(Si6O17)(OH)2 nanowires are completely transformed into β-CaSiO3 nanowires. The β-CaSiO3 nanowires have a diameter of 30–150 nm and a length of tens of micrometers. The hydrothermal conditions and the size of the raw materials play important roles on the size of the nanowires. A possible growth mechanism of the nanowires is also proposed. |
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