A general sonochemical approach to rapid synthesis of 1D single-crystalline MSn(OH)_6 (M = Ba, Ca, Sr) nanostructures

摘要

A general sonochemical approach that allows for a facile, rapid synthesis of MSn(0H)_6 (M - Ba, Ca, Sr) one-dimension (1D) nanostructures has been developed. The resulting CaSn(OH)_6 products possessed a nanotubular structure while SrSn(OH)_6 and BaSn(OH)_6 showed nanowire-like structures. The as-synthesized MSn(OH)_6 products were characterized by XRD, SEM and TEM techniques. Owing that BaSn(OH)_6 nanowires, CaSn(OH)_6 nanotubes, and SrSn(OH)_6 nanowires takes different crystal structures respectively, they share different growth mechanisms. However, we found that in all three growing processes, both ultrasound irradiation and the presence of Na_2CO_3 in the synthetic procedure had an significant impact on the homogeneous nucleation and fast growth of 1D MSn(0H)_6 nanostructures. This approach represents a successful example for the fast construction of innovative inorganic nanostructures in the absence of any surfactants.