Green hydrothermal synthesis and optical absorption properties of ZnO(2) nanocrystals and ZnO nanorods
作者：Guo, Tian Hong，Liu, Yan，Zhang, Yong Cai，Zhang, Ming
關鍵字：Semiconductors, Nanocrystalline materials, Optical materials and properties, Microstructure, Zinc peroxide and oxide
論文來源：期刊
具體來源：Materials Letters
發(fā)表時間：2011年
A green hydrothermal method was proposed for the controllable synthesis of ZnO2nanocrystals and ZnO nanorods, using the common and cost-effective 2ZnCO3·3Zn(OH)2powder and 30 mass% H2O2 aqueous solution as the raw materials. The characterization results from X-ray diffraction, high resolution transmission electron microscopy, transmission electron microscopy and energy dispersive X-ray spectroscopy indicated that the products synthesized at 100–120 °C for 6 h or at 170 °C for 0 h were cubic phase ZnO2nanocrystals; while those synthesized at 170 °C for 3–6 h were hexagonal phase ZnO nanorods. The UV–vis absorption spectra showed that the as-synthesized ZnO2nanocrystals and ZnO nanorods had optical band gaps of about 4.1 and 3.3 eV, respectively.