Influence of Ammonia Solution on Zinc Oxide Nanostructures by Hydrothermal Growth

Abstract:

In previous work, ZnO nanorods and nanoflowers were synthesized on indium-tin-oxide (ITO) substrates by hydrothermal growth at low temperature ,using the different concentrations of equimolar (1:1) zinc nitrate Zn (NO₃)₂6H₂O and methenamine (C₆H₁₂N₄) mixed as precursors solution, and adding ammonia solution to control the pH levels. In this paper, for comparison, the same experiment without ammonia solution was also discussed. SEM, XRD were utilized to characterize morphologies and crystal structures of ZnO. It was indicated that the pH of precursor solution leads to the significantly changes in the nanostructured ZnO. Besides, a hierarchical structure of some of the micro/nanotubes was obtained .The possible growth mechanism is discussed in this work.

• Periodical: Advanced Materials Research (Volumes 875-877)
• Pages: 1549-1553
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.875-877.1549
• Online since: February 2014
• Authors: Z.B. Huang, X.P. Zou, G.Q. Yang, X.M. Lv, C.L. Wei, Z. Sun, H.Q. Zhou, B.L. Zhang
• Keywords: Ammonia Solution, Hydrothermal Growth, Multistage Nanotubes, ZnO Nanomaterials

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