A General Sonochemical Approach to Rapid Synthesis of 1D Single-Crystalline MSn(<i>OH</i>)<sub>6</sub> (<i>M=Ba, Ca, Sr</i>) Nanostructures

Abstract

A general sonochemical approach that allows for the facile, rapid synthesis of MSn(OH)6(M=Ba, Ca, Sr) one-dimension (1D) nanostructures has been developed. The resulting CaSn(OH)6products possessed a nanotubular structure, while SrSn(OH)6 and BaSn(OH)6showed nanowire-like structures. The as-synthesized MSn(OH)6 products were characterized by XRD, SEM and TEM techniques. The BaSn(OH)6nanowires, CaSn(OH)6nanotubes, and SrSn(OH)6nanowires share different growth mechanisms because they take different crystal structures. However, we found that for all the three materials, both the ultrasound irradiation and the presence of Na2CO3in the synthetic procedure had an impact on the homogeneous nucleation and fast growth of 1D MSn(OH)6nanostructures. This approach represents a successful example for the fast construction of inorganic innovative nanostructures in the absence of any surfactants.