太原理工大学学报2017，Vol.48Issue(6)：924-928,5.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.06.008
响应面法优化硫酸根自由基降解对氯苯酚
Optimization of 4-Chlorophenol Degradation by Sulfate Radicals Using Response Surface Methodology
摘要
Abstract
The degradation of 4-chlorophenol by SO-4· generated from persulfate activated by in situ S-doped carbon was studied by using response surface methodology (RSM).Box-Behnken design (BBD)was applied to establish a quadratic model describing pseudo-first-order degradation rate constant of 4-chlorophenol (Y )obtained at different levels of critical parameters,namely ini-tial pH of solution,reaction temperature and persulfate/4-chlorophenol molar ratio.The influ-ence of the parameters and their interaction on Y was discussed.Model results reveal that reac-tion temperature showed the most remarkable effect onY and the optimum conditions were as fol-lows:initial solution pH of 4.51,reaction temperature of 55 ℃ and persulfate/4-chlorophenol molar ratio of 25.64.Under the optimum operating condition,the observed value of Y was 0.19294 min-1 ,which showed a deviation of 0.00326 min-1 from the predicted value,indicating the good applicability and feasibility of RSM for optimizing reaction conditions for 4-chlorophenol degradation.关键词
硫酸根自由基/对氯苯酚/降解条件/响应面法/Box-Behnken设计Key words
SO-4·/4-chlorophenol/degradation conditions/response surface methodology/Box-Behnken design分类
资源环境引用本文复制引用
郭耀萍,曾泽泉,李昱琳,黄张根,崔燕..响应面法优化硫酸根自由基降解对氯苯酚[J].太原理工大学学报,2017,48(6):924-928,5.基金项目
山西省基础研究计划青年科技研究基金资助项目(2014021016-3) （2014021016-3）
国家自然科学基金青年基金资助项目(21507140) （21507140）
中国科学院战略性先导科技专项基金资助项目(XDA07030300) （XDA07030300）
