Abstract: | Hierarchical CdCO3 nanostructures with complex morphologies, such as tetragonal, pentagonal and hexagonal nanorings, can be prepared via self-assembly of nanocrystals in a solvothermal environment. XRD pattern indicated that the product is trigonal CdCO3 phase (PDF#850989) with cell constants a = 6.112 (A) And α = 47.4°. Based on our experimental results, a possible nanoring formation mechanism was proposed. |