纳米孔活化贝壳粉的制备工艺优化研究  

Study on optimization of preparation process of nanopore activated shell powder

作　　者：柳滢春[1] 黄勇[1] 张娜[1] 陈冬泳 曾能 LIU Ying-chun;HUANG Yong;ZHANG Na;CHEN Dong-yong;ZENG Neng(Department of Biomedicine,Zhongshan Torch Polytechnic,Zhongshan 528436,China;Zhongshan Kailei Nursing Products Co.,Ltd.,Zhongshan 528437,China)

机构地区：[1]中山火炬职业技术学院健康产业学院,广东中山528436 [2]中山市凯蕾护理用品有限公司,广东中山528436

出　　处：《化学工程师》2020年第7期10-12,共3页Chemical Engineer

基　　金：中山市科技计划社会公益重大专项(No.2017B1024);广东省教育厅项目(GDJG2019478)。

摘　　要：为制备纳米孔贝壳粉并获得最优工艺条件,在单因素实验的基础上,采用三因素三水平正交设计法,研究贝壳粉煅烧活化的煅烧温度、煅烧前贝壳粉粒径、煅烧时间3个因素对贝壳粉的比表面积的影响。研究结果表明:3个因素对贝壳粉比表面积的影响大小次序为:煅烧前贝壳粉粒径、煅烧温度、煅烧时间。通过正交试验获得最优方案并进行了验证试验,确定制备纳米孔贝壳粉的优化工艺条件为:颗粒粒径600目、煅烧温度900℃,煅烧时间1.5h,在此条件下制备的纳米贝壳粉平均孔径分布在0.4~1.5nm,比表面积为10.92860m2·g-1,可应用于果蔬的农药残留、重金属吸附。In order to prepare nanoporous shell powder and obtain the optimal process conditions,based on single-factor experiments,a three-factor three-level orthogonal design method was used to study the influence of the calcination temperature,shell particle size,and calcination time of shell powder before calcination on the specific surface area of shell powder.The research results show that the order of influence of the three factors on the specific surface area of shell powder is the particle size of the shell powder before calcination,the calcination temperature,and the calcination time.The optimal solution was obtained through orthogonal experiments and a verification test was performed.The optimal process conditions for preparing nanoporous shell powder were determined as follows:the particle diameter of 600 mesh,the calcination temperature of 900℃,and the calcination time of 1.5h.Prepared under these conditions,the average pore size distribution of the powder is 0.4~1.5nm,and the specific surface area is 10.92860m2·g-1.It can be used for pesticide residues and heavy metal adsorption in fruits and vegetables.

关 键 词：纳米孔 煅烧活化 贝壳粉 工艺优化 

分 类 号：TQ914[化学工程]