分子科学学报
分子科學學報
분자과학학보
JOURNAL OF MOLECULAR SCIENCE
2009年
6期
385-389
,共5页
脂肪醇聚氧乙烯醚%改性%W-MSU-x介孔分子筛%Al-MSU-x介孔分子筛
脂肪醇聚氧乙烯醚%改性%W-MSU-x介孔分子篩%Al-MSU-x介孔分子篩
지방순취양을희미%개성%W-MSU-x개공분자사%Al-MSU-x개공분자사
fatty alcohol polyoxyethylene ether%modification%W-MSU-x molecular mesoporous sieve%Al-MSU-x molecular mesoporous sieve
以脂肪醇聚氧乙烯醚为模板剂,正硅酸乙酯为Si源,分别以偏钨酸铵,硫酸铝作为W源和Al源进行改性,合成出W-MSU-x以及Al-MSU-x介孔分子筛.并且通过X射线扫描、N_2吸附-脱附、原位红外表征考察W和Al的加入对介孔分子筛的影响.结果得到,W的加入提高了分子筛的有序度,Al的加入使介孔分子筛的孔径减小,比表面积增大.
以脂肪醇聚氧乙烯醚為模闆劑,正硅痠乙酯為Si源,分彆以偏鎢痠銨,硫痠鋁作為W源和Al源進行改性,閤成齣W-MSU-x以及Al-MSU-x介孔分子篩.併且通過X射線掃描、N_2吸附-脫附、原位紅外錶徵攷察W和Al的加入對介孔分子篩的影響.結果得到,W的加入提高瞭分子篩的有序度,Al的加入使介孔分子篩的孔徑減小,比錶麵積增大.
이지방순취양을희미위모판제,정규산을지위Si원,분별이편오산안,류산려작위W원화Al원진행개성,합성출W-MSU-x이급Al-MSU-x개공분자사.병차통과X사선소묘、N_2흡부-탈부、원위홍외표정고찰W화Al적가입대개공분자사적영향.결과득도,W적가입제고료분자사적유서도,Al적가입사개공분자사적공경감소,비표면적증대.
This study emphasize on the modification of MSU-x molecular mesoporous sieve with tungstate ammonia and sulfate aluminum as W,Al source.In netural conditions,fatty alcohol polyoxyethylene ether is used as template,tetraethyl orthosilicate as silica source,the modified molecular mesoporous sieves W-MSU-x,Al-MSU-x were prepared.The characterizations of molecular mesoporous sieves modified by,W,Al are investigated by the technics of X Ray Diffraction,N_2 adsorption-desorption isotherms,FT-IR spectra.The results show that,W,Al do not destroy the framework of molecular mesoporous sieves,rather,the order degree is improved by W loaded; Al atom change the pore performance of molecular mesoporous sieves,pore diameter is minimized,surface area is increased as well.
