响应面法分析Ti/TiO_2电极光电催化富里酸的过程  

Response surface methodology analyzing fulvic acid degradation process by Ti/TiO_2 photoelectrocatalytic oxidation.

作　　者：傅剑锋[1] 李湘中[2] 季民[3] 

机构地区：[1]东南大学能源与环境学院,江苏南京210096 [2]香港理工大学土木与结构系 [3]天津大学环境科学与工程学院,天津300072

出　　处：《中国环境科学》2006年第6期718-722,共5页China Environmental Science

基　　金：教育部天南大合作基金(2002-2005)

摘　　要：利用响应面分析法对影响Ti/TiO2电极光电催化降解富里酸的主要因素进行了探讨.通过Design-Expert5软件可得到1个二次响应曲面模型.结果表明,最佳的pH值、K2S2O8投加量和偏电压分别为3.8、88.40mg/L、0.88V,此时富里酸的去除率达到最大(57.06%).方差分析表明,模型具有较高的回归率(R2=97.54%),与实验结果吻合程度较高.Response surface methodology （RSM） was utilized to explore the main factors influencing Ti/TiO2 photoelectrocatalytic degradation of fulvic acid. Through Design-Expert 5 software, a quadratic curved surface model was obtained. The best pH value, K2S2O8 input amount and bias potential were 3.8, 88.40mg/L, 0.88V respectively; at this time, the removal rate of fulvic acid reached the greatest （57.06%）. The regression analysis showed that the model possessed higher regression rate （R^2=97.54%）, having higher coincide degree with the experimental results.

关 键 词：光电催化氧化 Ti/TiO2电极 富里酸 响应面法 

分 类 号：X131.2[环境科学与工程—环境科学]