Synthesis of Polypyrrole Nanoparticles by Microemulsion Polymerization for Photocatalysis  

作　　者：程杨 ZHAO Junhua WANG Guanghui 

机构地区：[1]College of Chemical Engineering and Technology, Wuhan University of Science and Technology [2]Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2013年第4期787-792,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Research Fund of Hubei provincial Department of Education,China(Q20121102);the Open Research Program of Research Center of Green manufacturing,Energy-saving and Emission-reduction,Wuhan University of Science and Technology(B1201)

摘　　要：The photocatalytic properties of polypyrrole nanoparticles prepared by W/O microemulsion method were reported. During the photodegradation of Orange II and Methyl Orange as organic dyes in UV/ H202 and UV irradiation systems using polypyrrole nanoparticles as photocatalyst, the latter performances special photocatalytic activity towards to above dyes in both UV and UV/H202 system. In detail, its photocatalytic activity is 5.17 and 4.82 times higher than normal polypyrrole composites in UV/Orange II and UV/MO system relatively. The size of polypyrrole nanoparticles characterized by TEM is 200-400 nm with good dispersity. The further measurement by accelerated surface area and porosimetry system shows such nanoparticles have a specific surface area of 1.47 m2/g compared to normal polypyrrole of 0.22 m2/g. This conjugated polymer characterized by FTIR spectroscopies before and after photocatalytic reactions shows reliable chemical stability. In addition, it holds excellent recovery ability and keeps up their catalytic activity within distinctive drop after six repeated utilization.The photocatalytic properties of polypyrrole nanoparticles prepared by W/O microemulsion method were reported. During the photodegradation of Orange II and Methyl Orange as organic dyes in UV/ H202 and UV irradiation systems using polypyrrole nanoparticles as photocatalyst, the latter performances special photocatalytic activity towards to above dyes in both UV and UV/H202 system. In detail, its photocatalytic activity is 5.17 and 4.82 times higher than normal polypyrrole composites in UV/Orange II and UV/MO system relatively. The size of polypyrrole nanoparticles characterized by TEM is 200-400 nm with good dispersity. The further measurement by accelerated surface area and porosimetry system shows such nanoparticles have a specific surface area of 1.47 m2/g compared to normal polypyrrole of 0.22 m2/g. This conjugated polymer characterized by FTIR spectroscopies before and after photocatalytic reactions shows reliable chemical stability. In addition, it holds excellent recovery ability and keeps up their catalytic activity within distinctive drop after six repeated utilization.

关 键 词：POLYPYRROLE conjugated polymer MICROEMULSION PHOTOCATALYST 

分 类 号：O633.5[理学—高分子化学] TB383[理学—化学]