纳米复合型AC负载Cu/Nd催化剂的制备及性能  

Preparation and property investigation of nano-composite AC supported Cu/Nd catalyst

作　　者：周庶[1] 肖松[1] 邬杰[1] 曹志勇[1] 屈钧娥[1] 何云斌[1] 王海人[1] 

机构地区：[1]湖北大学材料科学与工程学院,湖北武汉430062

出　　处：《中国环境科学》2017年第3期915-924,共10页China Environmental Science

基　　金：国家自然科学基金资助项目(51202062;61274010;51572073);湖北省自然科学基金(2015CFA038)

摘　　要：本文采用溶胶-凝胶法,以Cu(NO_3)_2﹑Nd(NO_3)_3为活性组分,制备了Cu/Nd-AC负载催化剂.将内部填充了Cu/Nd-AC负载催化剂的不锈钢丝篮作阳极,空气扩散电极作阴极,应用电催化氧化方法来处理模拟含酚废水,考察了不同条件下负载催化剂的催化性能,以含酚废水的COD去除率和苯酚去除率为负载催化剂性能评价对象.结果表明,504mg/L含酚废水最佳处理条件为反应时间1h,Cu/Nd-AC负载催化剂投加量5g/L,废水pH=3,电解电流密度400m A/dm^2,此时含酚废水COD去除率和苯酚去除率分别可达到98.32%和99.59%.Nano composite AC（active carbon） supported Cu/Nd catalyst was prepared by sol-gel method using Cu（NO3）2and Nd（NO3）3 as active components. Electro-catalytic oxidation of phenolic wastewater was performed by using a stainless steel wire basket filled with Cu/Nd-AC catalyst as anode, and air diffusion electrode as cathode（ADE）. The catalytic activity of the prepared catalyst was evaluated by of COD（chemical oxygen demand） and phenol removal rates of the wastewater. The optimum parameters were found to be as follows： Cu/Nd-AC catalyst dosage = 5g/L, solution pH = 3, and electrolysis current density = 400 m A/dm2. In this case, the COD and phenol removal rates could reach 98.32% and 99.59%, respectively, after 1h degradation for a phenol solution of 504mg/L concentration.

关 键 词：溶胶-凝胶法 负载催化剂 电催化氧化 含酚废水 空气扩散电极 

分 类 号：X703[环境科学与工程—环境工程]