Acta Phys. -Chim. Sin. ›› 2009, Vol. 25 ›› Issue (08): 1555-1560.doi: 10.3866/PKU.WHXB20090745

• ARTICLE • Previous Articles     Next Articles

Preparation of Visible-Light Response Cu-Cu2+1O Composites by a One-Step Hydrothermal Method

LI Chang-Yu, LIU Shou-Xin, MA Yue   

  1. College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, P. R. China
  • Received:2009-03-04 Revised:2009-05-06 Published:2009-07-16
  • Contact: LIU Shou-Xin E-mail:liushouxin@126.com

Abstract:

Visible-light response Cu-Cu2+1O metal-semiconductor nanocrystal composites were prepared using a one-step hydrothermal method with Cu(NO3)2 as starting material, ethylene glycol (EG) as solvent and reductant, and polyvinypyrrolidone k30 (PVP) as surfactant. The prepared composites were characterized via X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV-Vis diffuse reflectance spectrum (DRS). The photocatalytic performance was tested using phenol degradation under xenon lamp irradiation. Results show that PVP has almost no effect on the crystal structure of the prepared powders but promotes the deoxidization of Cu2+1O and affects the particle size distribution, interface combination, and the photocatalytic activity of Cu and Cu2+1O. Activity results show that Cu-Cu2+1O particles can degrade phenol and the kinetics fits a first-order reaction.

Key words: Photocatalytic activity, Visible-light response, Cu-Cu2+1O, Metal-semiconductor composite material

MSC2000: 

  • O643