Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (11): 2207-2212.doi: 10.3866/PKU.WHXB201509152

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles     Next Articles

Finely Controlling the Diameter of the TiO2 Nanowire Array by Micelles in the Reversed Micelle Reaction under Hydrothermal Condition

Jie. YANG1,2,Yu-He. LI1,2,Hai-Long. HU1,*()   

  1. 1 Analytical and Testing Center, Southwest University of Science and Technology, Mianyang 621010, Sichuan Province, P. R. China
    2 School of National Defence Science and Technology, Southwest University of Science and Technology, Mianyang 621010, Sichuan Province, P. R. China
  • Received:2015-04-27 Published:2015-11-13
  • Contact: Hai-Long. HU E-mail:huhail@mail.ustc.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(40372030);National College Students' InnovativeEntrepreneurial Training Project Foundation, China(201210619021)

Abstract:

We establish a model for growing titania nanowires arrays (TNAs) within micelles on the hydrophilic substrate of fluorine-doped tin oxide (FTO) in a reversed micelle reaction under hydrothermal conditions, and we discuss the mechanism that micelle size controlled the diameter in the TNAs growth progress. We produced TNAs with various diameters on FTO by adjusting the temperature, which changed the micelle size, and by using the crystal-plane suppressing effect of the Cl- ion. The volume ratio of the polar/nonpolar solvent barely influenced the nanowire diameter during growth. Based on this result, thinner TNAs can be prepared by using the restricting effect of the micelles and the crystal-plane suppressing effect of the Cl- ion. This method can also be used to synthesize other relative oxide nanomaterials.

Key words: TiO2 nanowire array, Micelle, Diameter of nanowire, Cl- ionic control effect

MSC2000: 

  • O649