可见光下改性的纳米孔二氧化硅(LUS-1)光催化苯直接羟基化合成苯酚(英文)  

Photocatalytic Synthesis of Phenol by Direct Hydroxylation of Benzene by a Modified Nanoporous Silica(LUS-1) under Sunlight

作　　者：Ghasem SHIRAVAND Alireza BADIEI Ghodsi Mohammadi ZIARANI Morteza JAFARABADI Majid HAMZEHLOO 

机构地区：[1]School of Chemistry, College of Science, University of Tehran, Tehran, Iran [2]Department of Chemistry, Faculty of Science, Alzahra University, Tehran, Iran

出　　处：《催化学报》2012年第8期1347-1353,共7页

基　　金：supported by University of Tehran

摘　　要：Fe-g-C3N4-LUS-1 was prepared by the thermal decomposition of dicyandiamide inside the pores of LUS-1 under an inert atmosphere.It was used as a photocatalyst for the hydroxylation of benzene to phenol in sunlight.The catalysts were characterized by Fourier transform infrared spectroscopy,N2 adsorption-desorption,X-ray diffraction,and scanning electron microscopy.In Fe-g-C3N4-LUS-1,a single layer of graphitic carbon nitride(g-C3N4) was formed on the surface of LUS-1.The photocatalytic activity of the iron containing g-C3N4 based catalysts was investigated,and the catalytic activity was remarkably enhanced when the reaction condition was changed from dark to sunlight.The best result was obtained with 20%Fe-g-C3N4-LUS-1 in sunlight.Fe-g-C3N4-LUS-1 was prepared by the thermal decomposition of dicyandiamide inside the pores of LUS-1 under an inert atmosphere.It was used as a photocatalyst for the hydroxylation of benzene to phenol in sunlight.The catalysts were characterized by Fourier transform infrared spectroscopy,N2 adsorption-desorption,X-ray diffraction,and scanning electron microscopy.In Fe-g-C3N4-LUS-1,a single layer of graphitic carbon nitride（g-C3N4） was formed on the surface of LUS-1.The photocatalytic activity of the iron containing g-C3N4 based catalysts was investigated,and the catalytic activity was remarkably enhanced when the reaction condition was changed from dark to sunlight.The best result was obtained with 20%Fe-g-C3N4-LUS-1 in sunlight.

关 键 词：mesoporous SILICA photocatalyst phenol BENZENE HYDROXYLATION SUNLIGHT NANOPOROUS SILICA carbon nitride 

分 类 号：TQ243.12[化学工程—有机化工]