WU Ping-xiao, LI Hai-ling

(College of Environmental Science and Engineering, South China University of Technology, Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, China)

Abstract: Ce doped hydroxyl iron intercalated montmorillonite was synthesized with ion exchange method, and it’s catalyst chrematistics were analyzed by using powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectra, X-ray photoelectron spectroscopy analysis (XPS), and BET surface analysis techniques. The photo Fenton catalytic activity of the catalyst was tested under different reaction condition using reactive brilliant blue (KN-R) as model pollutant under UV light. The result indicates that Ce doing is able to enhance the photocatalytic activity of hydroxyl iron intercalated montmorillonite. Under reaction conditon with KN-R initial concentraton of 75 mg/L, pH=3.0, and [H2O2]0=4.9 mmol/L, 99.5% of KN-R can be degradated at t=100 min. The improvement of photocatalyctic performance by Ce doing was also exploited by the experiment and analysis results.

Key words: hydroxyl iron; Ce; photocatalysis; intercalated montmorillonite; photo Fenton

 E-mail: qiuhn@gig.ac.cn

ACTA MINERALOGICA SINICA Vol. 32, No. 4, 2012, Page 461-467