摘要
本文通过对粉煤灰进行酸处理与不同浓度的NaOH和KOH混碱改性,采用水热晶化法合成了单一的NaP1型沸石。利用X射线衍射(XRD)、扫描电子显微镜(SEM)和X射线荧光光谱仪(XRF)进行测试表征,结果表明:在硅铝比和晶化时间一定的情况下,单一NaP1型沸石的合成主要取决于混碱浓度和晶化温度;在硅铝摩尔比为1.5,晶化时间为8 h的条件下,制备单一NaP1型沸石的最佳混碱浓度和晶化温度分别是10 mol/L、120℃。
In this paper,the raw materials modified by acid solution and mixed alkali solution(NaOH and KOH) with different concentrations were selected for synthesis of single-phase zeolite NaP1.The experimental products were characterized by means of X-ray diffraction(XRD),scanning electron microscope(SEM),and X-ray fluorescence(XRF).The results indicated that the concentration of mixed alkali solution and crystallization temperature are the main determinants for synthesis of single-phase zeolite NaP1 with fixed crystallization time and ratio of Si and Al.With Si/Al of 1.5,crystallization time of 8 h,crystallization temperature of 120 ℃ and mixed alkali solution of 10 mol/L,single-phase zeolite NaP1 was well prepared.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2013年第5期819-823,共5页
Bulletin of the Chinese Ceramic Society
基金
中央高校基本科研业务费(2013JBM087)
北京市大学生科学研究与创业行动计划项目