Acta Phys. -Chim. Sin. ›› 1997, Vol. 13 ›› Issue (11): 974-977.doi: 10.3866/PKU.WHXB19971104

• ARTICLE • Previous Articles     Next Articles

Prepration of Copper Colloid and it's Absorption Spectrum

Zheng Hua-Gui,Li Ya-Dong,Li Cheng-Wei,Zhao Hua-Zhang,Liu Yuan-Hui,Qian Yi-Tai   

  1. Department of Chemistry,University of Science and Technology of China Hefei,230026;Structure Research Laboratory Academia Sinica,Hefei 230026
  • Received:1996-12-06 Revised:1997-01-26 Published:1997-11-15
  • Contact: Li Ya-Dong


The colloid of pure copper was prepared from the solution of copper sulfate with hydrazine by controlling the condition of reductive reaction. The effect of the concentration of surfactant, sodium dodecyl on the size, shape and agglomeration was studied by using UV-Vis, spectrum. It's Shown that the surfactant can effectively prevent the agglomeration of particles and favor the formation of spherical particles smaller than 4nm when the concentration of surfactant is high enough.

Key words: Copper colloid, Control synthesis, UV-Vis spectrum