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《Acta Materiae Compositae Sinica》 2018-06
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Preparation of g-C_3N_4/illite composite and its visible-light-driven photocatalytic activity

SUN Zhiming;LI Xue;MA Jianning;LI Chunquan;ZHENG Shuilin;School of Chemical & Environmental Engineering,China University of Mining & Technology(Beijing);  
Using illite as carrier and dicyandiamide(C_2H_4N_4)as g-C_3N_4 precursor,a novel visible light responding g-C_3N_4/illite photocatalytic composite was prepared through chemical impregnation combined with thermal polymerization technique.The microstructure,interface and optical properties of the obtained photo-catalytic composites were characterized by XRD、FESEM、AFM、UV-Vis、BET and PL.In addition,using ciprofloxacin(CIP)as the target pollutant,the photo-catalytic activity of photo-catalytic composite was evaluated under visible light.The results indicate that the as-synthesized g-C_3N_4/illite sample exhibits significantly enhanced photocatalytic activity under visible-light irradiation,whose reaction constant rate is almost 11.26 times that of the pure g-C_3N_4.The g-C_3N_4 nanosheets are firmly attached on the surface of illite,which could effectively inhibit the recombination of photogenerated carriers and then further improve the adsorption capacity and photoactivity of g-C_3N_4 photocatalyst.
【Fund】: 国家自然科学基金(51504263);; 中央高校基本科研业务费(2015QH01)
【CateGory Index】: O643.36;TB332
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