按L9(34)设计试验制备纳米ZnO粉体,以反应温度x1、煅烧温度x2和煅烧时间x3为变量,ZnO对甲基橙溶液的光催化降解脱色率DC为目标响应值,采用PSO-二次回归方法建模,经非线性规划基于该模型寻优,获得试验设计范围内最优化的ZnO制备条件.该条件下制备的ZnO粉体光催化性能明显优于按直观分析法分析得出的优化条件下制备的ZnO,也明显优于市售的KY-ZnO-02产品.借助大大缩短试验次数的试验设计建模是实现制备工艺优化的一条有效途径.
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