Acta Phys. -Chim. Sin. ›› 2016, Vol. 32 ›› Issue (11): 2785-2793.doi: 10.3866/PKU.WHXB201608304

• ARTICLE • Previous Articles     Next Articles

Synthesis and Photocatalytic Characterization of Porous Cu-Doped ZnO Nanorods

Yuan-You WANG1,2,Guo-Qiang ZHOU1,Long ZHANG1,Tian-Qing LIU1,*()   

  1. 1 Jiangsu Key Laboratory of Environmental Material and Environmental Engineering, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu Province, P. R. China
    2 Department of Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou 225127, Jiangsu Province, P. R. China
  • Received:2016-06-27 Published:2016-11-08
  • Contact: Tian-Qing LIU E-mail:tqliu@yzu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21505118);Natural Science Foundation of Jiangsu Province, China(BK2150438);Jiangsu Key Laboratory of Environmental Material and Environmental Engineering, China(K13065);Priority Academic Program Development of Jiangsu Higher Education Institutions, Senior Visiting Scholar Program of Jiangsu Higher Vocational College, China(2015FX089);Qing Lan Project of Jiangsu Province, China

Abstract:

A two-step method was developed for the selective synthesis of porous ZnO nanorods (undoped and Cu doped):first, Zn[C6H4(COO)2]·H2O and Cu doped Zn[C6H4(COO)2]·H2O nanorods were synthesized via the hydrothermal reaction of Zn(NO3)2·6H2O, NaOH, KHC8H4O4, and Cu(NO3)2·3H2O at 120℃ for 6 h; second, porous undoped and doped ZnO nanorods were obtained by thermal decomposition of the precursors in air at 500℃ for 2 h, respectively. The porous ZnO nanorods were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible (UV-Vis) spectroscopy. The photocatalytic degradation of rhodamine B (RhB) aqueous solution shows that the porous Cu-doped ZnO nanorods have the highest photodegradation performance with visible light and acetaldehyde (CH3CHO) gas degradation. These results are because of the special interface structures of the catalysts and fast separation of its photogenerated charge carriers. These favorable photocatalytic properties of the doped microstructures demonstrate their potential for degradation of wastewater and aldehydes.

Key words: Semiconductor, Cu-doped ZnO, Nanorod, Photocatalysis

MSC2000: 

  • O643