A Facile Process for the Preparation of Three‐Dimensional Hollow Zn(OH)2 Nanoflowers at Room Temperature. Issue 32 (4th July 2016) - Cai, Ren
Abstract: A facile strategy has been developed to synthesize double‐shelled Zn(OH)2 nanoflowers (DNFs) at room temperature. The nanoflowers were generated via conversion of Cu2 O nanoparticles (NPs) using ZnCl2 and Na2 S2 O3 by a simple process. Outward diffusion of the Cu 2+, produced by an oxidation process on the surface of NPs, and the inward diffusion of Zn 2+ by coordination and migration, eventually lead to a hollow cavity in the inner NPs with a double‐shelled 3D hollow flower shapes. The thickness of the inner and outer shells is estimated to be about 20 nm, and the thickness of nanopetals is about 7 nm. The nanoflowers have large surface areas and excellent adsorption properties. As a proof of potential applications, the DNFs exhibited an excellent ability to remove organic molecules from aqueous solutions. Abstract : Double‐shelled Zn(OH)2 nanoflowers (DNFs) were synthesized with uniform size and hollow double‐shell features. The thickness of the inner and outer shells is estimated to be about 20 nm, and the thickness of nanopetals is about 7 nm. As a proof‐of‐concept, the DNFs exhibited excellent ability to remove organic molecules from aqueous solutions (see figure).