热液循环
材料科学
沸石
化学工程
偏高岭土
比表面积
溶剂热合成
扫描电子显微镜
水热合成
核化学
吸附
八角石
矿物学
复合材料
粉煤灰
有机化学
化学
催化作用
工程类
作者
Naruemon Setthaya,Prinya Chindaprasirt,Kedsarin Pimraksa
出处
期刊:Materials Science Forum
日期:2016-09-01
卷期号:872: 242-247
被引量:9
标识
DOI:10.4028/www.scientific.net/msf.872.242
摘要
Synthesis of zeolite nanocrystals from rice husk ash and metakaolin was studied. Hydrothermal and solvothermal methods at 120 °C for 6 h were used as comparative study. Starting mixes were prepared with SiO 2 /Al 2 O 3 molar ratio of 4. Two factors; stirring time before hydrothermal and solvothermal treatments and solvent types were studied. The synthesized products were characterized in terms of mineralogy using X-ray diffraction, specific surface area using N 2 adsorption and desorption isotherm, morphology and composition using scanning electron microscopy and electron dispersion X-ray analysis. The results showed that faujasite and zeolite P1 were obtained from both of hydrothermal and solvothermal methods. However, crystals sizes of the synthesized zeolites from solvothermal method were smaller than that of hydrothermal method in that 100-300 nm and 100-1500 nm for solvothermal and hydrothermal methods, respectively. Specific surface area of the zeolites obtained from hydrothermal and solvothermal methods were 418 and 487 m 2 /g, respectively.
科研通智能强力驱动
Strongly Powered by AbleSci AI