Acta Chim. Sinica ›› 2010, Vol. 68 ›› Issue (17): 1765-1770. Previous Articles     Next Articles

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  • 收稿日期:2010-01-24 修回日期:2010-05-10 出版日期:2010-09-14 发布日期:2010-05-17

Facile Synthesis of Copper(II) 8-Hydroxyquinolinate Micro-nanometer Materials with Various Morphologies and Polymorphs

YIN Zhi-Gang, WANG Bing-Xi, CHEN Gui-Hua   

  1. (College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108)
  • Received:2010-01-24 Revised:2010-05-10 Online:2010-09-14 Published:2010-05-17

By simply adjusting ethanol-water reaction medium and aging time, plenty of micro-nanometer copper(II) 8-hydroxyquinolinate materials with different morphologies and crystalline phases were prepared rapidly from 8-hydroxyquinoline and copper acetate via liquid precipitation method. The prepared products were characterized by SEM, XRD, UV-Vis and FT-IR absorption spectra. The results showed that the nanorod-like ??-form copper(II) 8-hydroxyquinolinate dihydrate was prepared from the reaction of acidic 8-hydroxyquinoline and copper acetate aqueous solution, which was around 40??130 nm in diameter. The three-dimensional (3D) lath bundle-like ??-form anhydrous copper(II) 8-hydroxyquinolinate micro-nanometer structure with a thickness of each lath about 300 nm was prepared from the reaction of 8-hydroxyquinoline ethanol solution and copper acetate ethanol solution. Under the reaction circumstance of 8-hydroxyquinoline ethanol solution and copper acetate ethanol/aqueous solution with a total volume ratio of ethanol to water of 3??1, the crystalline phases of products transformed from the metastable ??-form and ??-form to the stable ??-form as aging time extended, while their morphologies changed from beard bundle-like and rhombohedral structure to nanorod-like and rhombohedral structure, and finally grew into singular rhombohedral copper(II) 8-hydroxyquinolinate dihydrate flake as well as its star-shaped assemblies after aging for 50 min.

Key words: copper(II) 8-hydroxyquinolinate, crystallization, morphologies, micro-nanometer