Acta Phys. -Chim. Sin. ›› 2011, Vol. 27 ›› Issue (06): 1543-1550.doi: 10.3866/PKU.WHXB20110619

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles    

Synthesis and Raman Property of Porous Jujube-Like Cu2O Hierarchy Structure

SUN Du, YIN Peng-Gang, GUO Lin   

  1. School of Chemistry and Environment, Beijing University of Aeronautics & Astronautics, Beijing 100191, P. R. China
  • Received:2011-03-04 Revised:2011-04-11 Published:2011-05-31
  • Contact: GUO Lin E-mail:guolin@buaa.edu.cn
  • Supported by:

    The project was supported by the National Key Basic Research Program of China (973) (2010CB934700), National Natural Science Foundation of China (50725208, 20973019), and Specialized Research Fund for the Doctoral Program of Higher Education, China (20091102110035).

Abstract:

Structural engineering of nanocrystals is of great importance to control the properties of semiconductor oxides. Here, we present a mild wet chemical reduction route to obtain a sub-micron porous jujube-like Cu2O hierarchy structure. Sodium dodecylbenzene sulfonate (SDBS) is crucial in structural regulation and it acts as a soft template and a capping agent. The jujube-like particle consists of crystal grains less than 10 nm in size as verified by transmission electron microscopy (TEM) and X-ray diffraction (XRD). A set of time control experiments were carried out to study the evolution of the jujube-like structure. Interestingly, we found that altering the amount of added HCl resulted in a size-tuning effect of changing the size of the particles from approximately 300 to 900 nm. Based on these results, we propose a possible growth-etching competition mechanism to explain the formation of the hollow interior and its porous nature, which also agrees with the sizing-tuning effect. The optical properties were analyzed using Raman spectroscopy. By comparison with a conventional sub-micron solid polyhedral we found a novel Raman property for the porous jujube-like Cu2O. Our research complements the library of Cu2O Raman spectra, which is meaningful for the nondestructive examination of pigments on the surface of antiques by Raman techniques.

Key words: Nanomaterial, Sodium dodecylbenzene sulfonate, Cuprous oxide, Hierarchy structure, Raman spectroscopy

MSC2000: 

  • O648