Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (9): 1040-1047.DOI: 10.11944/j.issn.1000-0518.2015.09.150075

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Preparation and Visible Light Denitrification Performance of Copper Oxide/Zinc Oxide/3A Molecular Sieve Photocatalyst

CHEN Fengae,HUANG Yingyingb,YAN Guiyangacde*(),FAN Haimeiace,HUANG Renkunace   

  1. aDepartment of Chemistry,Ningde Normal University,Ningde,Fujian 352100,China
    bCollege of Chemistry and Chemical Engineering,Fujian Normal University,Fuzhou 350007,China
    cResearch Institute of Photocatalysis,State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou 350002,China
    dFujian Key Laboratory of Polymer Materials,Fuzhou 350007,China
    eDepartment of Chemistry,Fujian Province University Key Laboratory of Green Energy and Environment Catalysis,Ningde Normal University,Ningde,Fujian 352100,China
  • Received:2015-03-02 Accepted:2015-07-10 Published:2015-08-31 Online:2015-08-31
  • Contact: YAN Guiyang
  • Supported by:
    Supported by the NSFC(No.21473096), the Ningde Normal University Projects on Serving the Western Coast to the TW Strait (No.2010H103), the Project of Fujian Province Communications Department(No.201323), the Project of Ningde Normal University(No.2014Y001)


Copper oxide/zinc oxide/3A molecular sieve(CuO/ZnO/3A) photocatalyst was prepared by impregnation method and calcined in 450 ℃, and the structure of CuO/ZnO/3A was characterized by X-ray diffraction(XRD), UV-Vis diffuse reflectance spectroscopy(UV-Vis DRS), and X-ray photoelectron spectroscopy(XPS). Its photocatalytic denitrification behavior was studied by pyridine-n-octane system for simulated oil source of nitrogen under visible light irradiation. The influences of the preparation conditions of the photocatalyst, the amount of photocatalyst and the time of light irradiation on the photocatalytic denitrification performance were investigated. With the increase of the amount of metal oxide, photocatalytic activity of the complex increased at first and then decreased. The CuO/ZnO/3A composite photocatalyst calcined at 400 ℃ for 5 h with 9.8% mass fraction of zinc and 28.6% of copper enabled 74.78% denitrification of the simulated oil system, after a reaction under visible light of 50 mL solution containing 100 μg/g of pyridine for 150 min.

Key words: copper oxide/zinc oxide/3A molecular sieve, loaded amount, photocatalysis, denitrification, light absorption