导电聚合物电极的电沉积及其对甲基橙的降解性能  

The Electrodeposition of Conducting Polymers and Its Degradation Property of Methyl Orange

作　　者：杜海燕[1] 许玉玉[1] 刘晓晓 杨慧敏[1] DU Hai-yan;XU Yu-yu;LIU Xiao-xiao;YANG Hui-min(College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学化学化工学院,山西太原030024

出　　处：《合成化学》2018年第11期809-815,共7页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(21304065)

摘　　要：采用单极脉冲法制备聚3,4-乙烯二氧噻吩/碳纸(PEDOT/CP)和聚苯胺/碳纸(PANI/CP)电极,其结构和表面形貌经傅里叶红外光谱仪(FT-IR)和扫描电子显微镜(SEM)表征。以甲基橙(MO)溶液模拟有机废水,利用紫外可见光谱研究了聚合物对MO的降解。结果表明:PEDOT/CP均匀包覆在碳纤维表面,表面呈现梭型纳米颗粒,而PANI呈纳米团簇状分布在碳纤维多孔结构内; PEDOT/CP的结构利于电子传输,对MO的催化活性较高,降解电位为1.5 V时,MO初始浓度为3 mg·L^(-1),KCl浓度为0.1 mol·L^(-1),降解30 min,降解效果最优。Poly（3,4-ethylenedioxythiophene）/carbon paper（PEDOT/CP） electrodes and polyaniline/carbon paper（PANI/CP） electrodes were prepared by unipolar pulse method. The structural and surface morphologies of PEDOT/CP and PANI/CP electrodes were characterized by fourier transform infrared spectroscopy（FT-IR） and scanning electron microscopy（SEM）. The degradation of methyl orange（MO） simulated wastewater was studied by UV-visible spectroscopy. The results showed that PEDOT/CP was uniformly coated on the surface of carbon fiber, and the surface presented shuttle-type nanoparticles. However, PANI was a nanocluster distributed in the porous structure of carbon fiber. Therefore, the structure of PEDOT/CP was helpful for electron transport and exhibited high catalytic activity for MO. The degradation effect was optimum at the potential of 1.5 V, the initial concentration of MO of 3 mg·L -1 , KCl concentration of 0.1 mol·L -1 , and the degradation was 30 min.

关 键 词：聚3  4-乙烯二氧噻吩 聚苯胺 碳纸 制备 电化学氧化降解 甲基橙 

分 类 号：O631[理学—高分子化学]