中心组合设计法优化CuCl_2为活化剂的茶梗活性炭制备工艺  

A Central Composite Design Was Used to Optimize the CuCl_2 as the Activating Agent Tea Stalk Activated Carbon Preparation

作　　者：李素琼[1] 王焕涵[1] 

机构地区：[1]武夷学院生态与资源工程学院,福建武夷山354300

出　　处：《科技资讯》2013年第27期55-59,共5页Science & Technology Information

基　　金：国家大学生创新创业训练计划项目(2012107002)

摘　　要：本研究以茶梗为原料,以氯化铜为活化剂,化学法制备载铜茶梗活性炭,采用响应面法优化所制备活性炭的吸附性能。在单因素实验的基础上选取浸渍比、氯化铜浓度、活化温度、活化时间为影响因子,利用Box-Behnken中心组合试验(简称BBD)进行4因素3水平的试验设计,以活性炭得率和碘吸附值作为响应值,进行响应面分析。结果表明,制备活性炭的最佳条件为:氯化铜浓度为25%、浸渍比为4、活化温度为600℃、活化时间为5 h,在此条件下,制得的活性炭的碘吸附值为453 mg/g、得率为47.09%。在优化条件下,制得的活性炭的碘吸附值和得率与预测值基本符合,所以据响应面法原理,对相关影响因素进行试验优化设计可行。The optimum process parameters of activated carbon from tea stems with CuCI2 were optimized in this paper. The influencing factors of activation concentration, impregnation ratio, activation temperature, activation time on iodine adsorption value and yield of activated carbon were optimized by Box--Behnken central composite test and response surface analysis, with iodine adsorption value and yield of activated carbon as evaluation index. These were carried on the basis of single factor experiment and the iodine adsorption value and yield of activated carbon was 453 mg/g and 47.09% respectively under the optimum condition by the cupric chloride concentration of 25%, impregnation ratio of 4, the activation temperature is 600℃ and the activation time for 5 h.lt was more rational when it referred to economic compared with single factor experiment. The following conclusion could be drawn：iodine adsorption value and yield of active carbon agreed with the predictive value. The optimization of related influencing factors was feasible according to response surface analysis.

关 键 词：茶梗 活性炭 响应面 氯化铜 

分 类 号：O6[理学—化学]