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A Facile Process for the Preparation of Three‐Dimensional Hollow Zn(OH) 2 Nanoflowers at Room Temperature
Author(s) -
Cai Ren,
Yang Dan,
Zhang Liqing,
Qiu Liping,
Liang Hao,
Chen Xigao,
Cansiz Sena,
Zhang Zuxiao,
Wan Shuo,
Stewart Kimberly,
Yan Qingyu,
Tan Weihong
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201600906
Subject(s) - adsorption , diffusion , aqueous solution , chemical engineering , nanoparticle , materials science , process (computing) , molecule , diffusion process , zinc , nanotechnology , chemistry , metallurgy , organic chemistry , knowledge management , physics , innovation diffusion , computer science , engineering , thermodynamics , operating system
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 Cu 2 O nanoparticles (NPs) using ZnCl 2 and Na 2 S 2 O 3 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.