目录
摘要Ⅱ
关键词Ⅱ
AbstractⅢ
引言
引言1
1实验材料与方法3
1.1试剂与仪器3
1.2实验装置与流程3
1.3试验设计4
1.4分析方法与计算4
2结果与讨论5
2.1利用响应曲面法对各操作参数的优化5
2.1.1利用中心复合设计对金橙II染料降解工艺的优化5
2.1.2利用Doehlert设计对金橙II染料降解工艺的优化7
2.1.3 CCDs模型与DM模型主效应与交叉效应对比8
2.2各操作参数对电化学氧化效果的影响9
2.2.1电解质种类和浓度的影响9
2.2.2电流密度的影响9
2.2.3流速的影响9
2.2.4响应曲面图分析10
2.3金橙II降解机理研究11
3结论与展望13
致谢14
参考文献15
响应曲面法在掺硼金刚石电化学氧化金橙Ⅱ染料废水中的应用
摘 要
染料废水具有排放量大、浓度高和降解难等特点，由于严重污染环境而引起广泛关注，其高效降解工艺的开发是当前的研究热点。传统染料废水处理工艺效果不理想且成本较高，而电化学高级氧化工艺则具有高效清洁、易与其他工艺结合和不产生二次污染物等特点，呈现巨大的应用前景。但这一工艺对于阳极材料的电催化性能和物理化学性能提出了很高的要求。掺硼金刚石（Borondoped diamond，BDD）电极是近年来兴起的阳极材料，凭借其优异的综合性能已经被成功的用于降解多种有机物。本文主要结合响应曲面法（Response surface method，RSM）分别采用中心复合设计（Central composite design，CCDs）和Doehlert（DM）设计来优化BDD工艺降解染料废水。本实验以金橙Ⅱ染料为模拟污染物，利用统计学方法考察支持电解质的种类、浓度、流速和电流密度这四个因素，并以对金橙Ⅱ染料的脱色率作为响应指标来评估各因素的统计学显著性。实验结果表明这两种模型得到了非常相似的优化条件。在掺硼金刚石电 *51今日免费论文网|www.51jrft.com +Q: ^351916072* 
极电解金橙Ⅱ染料60分钟后，中心复合设计模型的最大脱色率为99.57%，DM模型的最大脱色率为99.23%。同时，实验还利用计算化学计算金橙Ⅱ的电荷密度图，推算了金橙Ⅱ在掺硼金刚石电化学氧化过程的降解途径和机理，以验证液质联用分析的准确性。
APPLICATION OF RESPONSE SURFACE METHOD IN ELECTROCHEMICAL OXIDATION OF ORANGE Ⅱ DYE WASTEWATER WITH BORONDOPED DIAMOND
ABSTRACT
Dye wastewater has the characteristics of large discharge, high concentration, and difficult degradation. It has attracted widespread attention due to serious environmental pollution. The development of its efficient degradation process is a current research hotspot. The traditional dye wastewater treatment process is not ideal and the cost is high, while the electrochemical advanced oxidation process has the characteristics of high efficiency cleaning, easy to be combined with other processes, and no secondary pollutants, which presents huge application prospects. However, this process places high requirements on the electrocatalytic performance and physical and chemical properties of anode materials. Borondoped diamond (BDD) electrode is an anode material that has emerged in recent years. With its excellent comprehensive performance, it has been successfully used to degrade various organic substances. This paper mainly uses Response Surface Method (RSM) to adopt Central Composite Design (CCDs) and Doehlert (DM) design to optimize the degradation of dye wastewater by BDD process. In this experiment, Orange Ⅱ dye was used as a simulated pollutant, and the four factors of supporting electrolyte type, concentration, flow rate and current density were investigated by statistical methods, and the decolorization rate of Orange Ⅱ dye was used as the response index to evaluate each factor Statistical significance. The experimental results show that these two models get very similar optimization conditions. After 60 minutes of electrolysis of Orange Ⅱ dye with borondoped diamond electrode, the maximum decolorization rate of the central composite design model was 99.57%, and the maximum decolorization rate of the DM model was 99.23%. At the same time, the experiment also used computational chemistry to calculate the charge density map of Orange Ⅱ, and deduced the degradation pathway and mechanism of Orange Ⅱ during the electrochemical oxidation of borondoped diamond to verify the accuracy of the LCMS analysis.

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