煤渣制备NaP型沸石的响应面法优化工艺研究  

Optimization of response surface methodology for the synthesisNaP type zeolite from cinder

作　　者：滕柳梅[1] 张强 吴杰 马健坤 卜亦凡 TENG Liumei;ZHANG Qiang;WU Jie;MA Jiankun;BU Yifan(School of Materials Science and Engineering,Chongqing University of Arts and Sciences,Chongqing 402160,China;LB Sichuan Titanium Industry Co.,Ltd.,Deyang 618209,China;Chongqing Academy of Metrology and Quality Inspection,Chongqing 401120,China)

机构地区：[1]重庆文理学院材料科学与工程学院,重庆永川402160 [2]龙佰四川钛业有限公司,四川德阳6182093 [3]重庆市计量质量检测研究院,重庆渝北401120

出　　处：《功能材料》2022年第8期8214-8220,共7页Journal of Functional Materials

基　　金：重庆文理学院塔尖项目(P2019CL12)。

摘　　要：以燃煤电厂固体废物-煤渣作为原料,一步水热法合成了NaP型沸石。采用响应面法中的Box-Behnken Design优化实验设计,分别考察了水热反应时间、碱溶液浓度和反应温度3个因素对合成沸石的影响,建立了响应值与影响因素间的回归方程,探究各因素的交互影响并确定了最优条件。结果表明,在选取的3个因素当中,对合成沸石的影响显著因素顺序为反应温度>反应时间>碱溶液浓度。采用XRD、SEM等分析方法对在反应温度130℃,碱溶液浓度1.5 mol/L、不同时间条件下合成的沸石进行了表征。结果表明合成的NaP型沸石具有多孔结构及较大的比表面积,可用于催化剂载体、吸附等领域。In this paper,NaP type zeolite was synthesized by hydrothermal method with solid waste-cinder of coal-fired power plant as raw material.Using the Box-Behnken Design optimization experimental design,the influence of hydrothermal reaction time,alkali solution concentration and reaction temperature on the synthetic zeolites was investigated.The regression equation between response value and influencing factors was established.The interaction influence of various factors was explored and the optimal conditions were determined.The results showed that the order of significant influence on synthetic zeolite was as following:reaction temperature>reaction time>alkali solution concentration.Zeolites synthesized at 130℃,C_(NaOH)=1.5 mol/L and different reaction times were characterized by XRD,SEM and BET.It was found that the synthesized NaP zeolite had porous structure and large specific surface area,which can be used as catalyst supporter and adsorption fields.

关 键 词：煤渣 响应面法 沸石 水热反应 制备工艺 

分 类 号：X7[环境科学与工程—环境工程]