压缩集结碳纳米管电极对活性艳红染料的电催化降解研究  

Research on Electrocatalytic Degradation of Active Red Dye by Compressed Nanotube Electrodes

作　　者：温轶[1] 施利毅[1] 方建慧[1] 曹为民[1] 

机构地区：[1]上海大学理学院化学系,上海200444

出　　处：《化学学报》2006年第5期439-443,共5页Acta Chimica Sinica

基　　金：上海市科委纳米科技专项基金(No.0452nm027)资助项目.

摘　　要：采用浓硝酸回流、高温焙烧、高温焙烧结合高速球磨的方法对碳纳米管进行前处理.通过低温氮吸附法测定碳纳米管的比表面积;透射电子显微镜观察碳纳米管处理前后的形貌结构;红外光谱分析碳纳米管处理前后的官能团变化;拉曼光谱分析处理前后的碳纳米管中无定形碳和石墨碳含量的变化;将处理前后的碳纳米管制成电极,作为电催化阳极来处理模拟染料废水活性艳红X-3B溶液.实验结果表明:经处理后制成的碳纳米管电极,其稳定性及对染料溶液的电催化降解效率都有显著提高,高温焙烧结合高速球磨为最佳的前处理方法.Carbon nanotubes were processed by circumfluence with concentrated nitric acid, high-temperature calcination and milling with high speed after calcination, respectively. The specific surface area was tested by the low-temperature nitrogen adsorption method. The morphologies of such carbon nanotubes before and after treatment were characterized by transmission electron microscopy while infrared spectra were used to analyze the change of surface functional group. The content of amorphous carbon and graphite carbon was determined by Raman spectrum. The carbon nanotubes before and after treatment were made into electrocatalytic anode to degrade active red X-3B simulated wastewater. The experimental results indicated that the stability and electrocatalytic degradation efficiency of the electrodes made of carbon nanotubes after treatment were obviously improved. The process of milling with high speed after calcination was considered the best pre-treatment.

关 键 词：碳纳米管 电催化 染料 

分 类 号：X703.1[环境科学与工程—环境工程]