作　　者： ; ; ; ;

机构地区： 哈尔滨师范大学化学化工学院

出　　处： 《化学工程师》 2009年第4期10-14,共5页

摘　　要： 根据中心组合实验设计原理,在单因素试验的基础上,采用三因素三水平的响应曲面分析法,建立了FST复合型光催化剂降解普施安染料的二次多项数学模型,并以普施安染料脱色率为响应值作响应面和等高线,考察了pH值、催化剂投加量和光照时间对普施安染料降解的影响。结果表明,光催化剂降解普施安染料的优化工艺条件为:pH值1.3、催化剂投加量0.57g·L-1、光照时间49.9min。在此工艺条件下,理想普施安染料脱色率达到99.47%以上。 On the basis of one factor tests and the central composite design experimental design principle, the method of response surface analysis with three factors and three levels was adopted. A second order quadratic equation for photocatalysis of Procion Red MX-5B was built. Response surface and contour were graphed with the decoloration rate of Procion Red MX-5B as the response value. Based on the analysis of the response surface plots and their corresponding contour plots, effects of pH, irradiation time and catalyst loading were explored. By using this new method, the optimum decoloration condition was obtained as follows： pH, 1.3; irradiation time, 49.9min; catalyst loading, 0.57g.L^-1 Under the optimized condition, the perfect decoloration rate of Procion Red MX-5B was 99.47%.

关 键 词： 复合型光催化剂 响应曲面法 优化工艺条件

领　　域： [化学工程] [化学工程]