摘要
制备了Ti/SnO2+Sb2O3,Ti/PbO2,Ti/Fe-PbO2和Ti/SnO2+Sb2O3/Fe-PbO2四种形稳阳极材料,对其表面形貌进行了表征,同时测试了其在H2SO4溶液中的极化曲线.以苯酚为目标污染物,用其进行了电催化降解实验.结果表明,Ti/SnO2+Sb2O3/Fe-PbO2电极催化活性最好,苯酚降解率可达95%.添加锡锑中间层后,Ti/SnO2+Sb2O3/Fe-PbO2电极寿命显著提高,可达16h.苯酚在4种阳极上的电催化降解反应遵循一级反应动力学规律.
Four different dimensionally stable anodes （DSAs） Ti/SnO2＋Sb2O3, Ti/PbO2, Ti/Fe-PbO2 and Ti/SnO2＋Sb2O3/Fe-PbO2 were prepared. Their surface morphology was characterized by SEM and polarization curves were investigated in H2SO4 solution. In order to explore their electro-catalytic activity, electro-catalytic degradation experiment was carried out with phenol as model organic compound. The research results indicated that Ti/SnO2＋Sb2O3/Fe-PbO2 anode had the highest catalytic activity among the four anodes. The phenol removal rate reaches 95%. The accelerated lifetime of the electrodes with interlayer was improved obviously, reaching 16 h. In addition, the electro-catalytic degradation reaction of phenol on the four anodes followed first-order reaction kinetic law.
出处
《过程工程学报》
CAS
CSCD
北大核心
2012年第2期345-348,共4页
The Chinese Journal of Process Engineering
基金
国家自然科学基金资助项目(编号:51178283)
江苏省环境科学与工程重点实验室开放课题基金资助项目(编号:Zd091204)
江苏省"六大人才高峰"基金资助项目
江苏高校优势学科建设工程基金资助项目
关键词
电催化氧化
形稳阳极
苯酚
electro-catalytic oxidation
dimensionally stable anode
phenol
