摘要
采用KOH法制备了吸附性能良好的板栗壳活性炭,探索了综合利用其制备价廉、质优活性炭的可能性.通过Plackett-Burman实验设计、Box-Behnken Design中心组合试验设计对KOH法制备板栗壳活性炭工艺进行优化.在前期运用单因素试验优化的基础上,利用Plackett-Burman试验设计筛选出活性炭制备中影响吸附的3个显著性因素:KOH浓度、浸渍比和渍时间.以Box-Behnken Design响应面法建立数学回归模型,确定了最佳活性炭制备工艺为:KOH浓度为4 mol·m^-3,浸渍比为1.5:1,浸渍时间为14 h.实测值与预测值吻合良好,由此可见该模型可较好地预测活性炭的吸附效果.
The experiment adopted KOH method to prepare the absorbent shell activated carbon,and explored the possibility of using it to make the cheap and high-quality activated carbon.Plackett-Burman design(PBD),and Box-Behnken design(BBD)were used to optimize the process of this experiment.Based on the optimization of single-factor test in the early stage,we used the Plackett-Burman design to screen out three key factors that affect adsorption in the preparation of activated carbon:KOH concentration,impregnation ratio and impregnation time.Based on the Box-Behnken Design response surface method,the mathematical regression model was established,and the optimum activated carbon preparation technology was activator concentration of KOH is 4mol.m-3,impregnation ratio is 1.5:1and impregnation time is 14 h.And predicted values coincide well with the measured values,thus the model can well predict the adsorption effect of active carbon.
作者
李素琼
吴方棣
龚新怀
LI Su-qiong;WU Fang-di;GONG Xin-huai(School of Life Sciences,Jiaying University,Meizhou 514015,China;Ecology and Resources Engineering College,Wuyi University,Wuyishan 354300,China)
出处
《嘉应学院学报》
2019年第6期58-64,共7页
Journal of Jiaying University
基金
福建省自然科学基金项目（2017J01592）
关键词
KOH
响应面法
活性炭
板栗壳
KOH
response surface methodology
carbon
Chestnut Shell
