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首页> 外文期刊>International Journal of Basic and Applied Sciences >Photo-degradation of the methyl blue: Optimization through response surface methodology using rotatable center composite design
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Photo-degradation of the methyl blue: Optimization through response surface methodology using rotatable center composite design

机译：甲基蓝的光降解：使用可旋转中心复合材料设计的响应面方法进行优化

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Advanced oxidation processes (AOPs) generate in situ active hydroxyl radicals, allowing for the destruction of polluting agents through mineralization. The suitable experimental design allows adjustment of factor levels to obtain an optimal response in experimental analysis. Rotatable Center Composite design and multivariate analysis are used for the optimization of the removal of methyl blue from aqueous solution, using UV (254 nm) radiation source and hydrogen peroxide as an oxidant. A factorial design (2 n ) with repeated central and axial points was used to obtain the best experimental condition to efficiently remove the dye from aqueous solution. Initial concentration, 50- 150 ppm and hydrogen peroxide 0.05- 5.95 % was used as experimental variables and obtained 96.5% dye removal, with a rate constant of 0.33 min -1 . Dye degradation followed the first order kinetics and Dissolved Oxygen (DO) and pH of the solution was found strongly correlated with degradation.
机译：先进的氧化过程（AOP）会原位产生活性羟基自由基，从而通过矿化作用破坏污染剂。合适的实验设计允许调整因子水平，以在实验分析中获得最佳响应。使用UV（254 nm）辐射源和过氧化氢作为氧化剂，可旋转中心复合材料设计和多变量分析用于优化从水溶液中去除甲基蓝的操作。使用具有重复中心点和轴向点的阶乘设计（2 n），以获得最佳实验条件，以有效地从水溶液中去除染料。使用初始浓度50-150 ppm和过氧化氢0.05- 5.95％作为实验变量，并以0.33 min -1的速率常数获得96.5％的染料去除率。染料的降解遵循一级动力学，溶液的溶解氧（DO）和pH与降解密切相关。

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