Effects of Anion on the Morphologies of ZnO Synthesized by an Aqueous Solution Method

Abstract:

ZnO were rapidly synthesized using different zinc salts (Zn(NO₃)₂, Zn(CH₃CO₂)₂, ZnCl₂ and ZnSO₄) by an aqueous solution method at 90°C. The products were characterized by X-ray diffractometry and scanning electron microscopy. The results show that the anions have remarkable effects on the morphologies of ZnO. When Zn(NO₃)₂, Zn(CH₃CO₂)₂ or ZnCl₂ was used, ZnO was obtained with ellipsoidal, under-developed ellipsoidal and nano-particles morphologies, respectively. In the case of ZnSO₄, layered basic zinc sulfate was obtained. The remarkable effects of anions on ZnO can be ascribed to the adsorption of the anions on the surface of ZnO, which hinders the further growth of ZnO nuclei. The effect of SO₄^2- was further investigated by changing the mole ratio of SO₄^2- to NO₃^-.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 781-785
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.781
• Online since: July 2011
• Authors: Shi Cai Cui, Da Feng Zhang, Xi Peng Pu, Xian Hua Qian, Tian Tian Ge, Dong Yan
• Keywords: Anion, Growth, Solution Method, Zinc Oxide (ZnO)

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