材料导报
材料導報
재료도보
MATERIALS REVIEW
2012年
14期
111-114
,共4页
Al-SBA-15%磷酸%形貌
Al-SBA-15%燐痠%形貌
Al-SBA-15%린산%형모
Al-SBA-15%phosphoric acid%morphology
以正硅酸乙酯为硅源,非离子表面活性剂P123为模板剂,异丙醇铝为铝源,在磷酸介质中合成出了Al-SBA-15介孔分子筛.采用XRD、TEM、SEM、N2 -BET、TG-DTA等表征手段,考察了所得材料的物化性能.分析了初始溶液中硅铝比对介观结构的影响.所得材料在XRD谱图中(100)、(110)和(200)处出现较强衍射峰,氮气吸-脱附曲线为典型的Ⅳ型且有H1滞后环,结合TEM分析表明产物具有二维六方排列的介孔结构(空间群为p6mm),SEM结果表明相对纯硅SBA-15,Al-SBA-15介孔分子筛长程有序性没有受到限制.
以正硅痠乙酯為硅源,非離子錶麵活性劑P123為模闆劑,異丙醇鋁為鋁源,在燐痠介質中閤成齣瞭Al-SBA-15介孔分子篩.採用XRD、TEM、SEM、N2 -BET、TG-DTA等錶徵手段,攷察瞭所得材料的物化性能.分析瞭初始溶液中硅鋁比對介觀結構的影響.所得材料在XRD譜圖中(100)、(110)和(200)處齣現較彊衍射峰,氮氣吸-脫附麯線為典型的Ⅳ型且有H1滯後環,結閤TEM分析錶明產物具有二維六方排列的介孔結構(空間群為p6mm),SEM結果錶明相對純硅SBA-15,Al-SBA-15介孔分子篩長程有序性沒有受到限製.
이정규산을지위규원,비리자표면활성제P123위모판제,이병순려위려원,재린산개질중합성출료Al-SBA-15개공분자사.채용XRD、TEM、SEM、N2 -BET、TG-DTA등표정수단,고찰료소득재료적물화성능.분석료초시용액중규려비대개관결구적영향.소득재료재XRD보도중(100)、(110)화(200)처출현교강연사봉,담기흡-탈부곡선위전형적Ⅳ형차유H1체후배,결합TEM분석표명산물구유이유륙방배렬적개공결구(공간군위p6mm),SEM결과표명상대순규SBA-15,Al-SBA-15개공분자사장정유서성몰유수도한제.
Using tetraethyl orthosilicate as silica source,non-ionic surfactant P123 as template and aluminum isopropoxide as aluminum source,Al-SBA-15 mesoporous molecular sieves were obtained in the presence of phosphoric acid.By means of XRD,TEM,SEM,N2-BET,TG-DTA techniques,the properties of the samples were characterized.The effect of the molar ratio of Si/Al in the starting reactant solution on the mesoporous structure was investigated.The materials exhibited strong reflection peaks at (100),(110) and (200) reflection lines.N2 adsorption-desorption isotherms were typical Ⅳ type with a H1 hysteresis loop.XRD and TEM results showed that the samples possessed 2D hexagonal symmetry (p6mm) mesostructure.SEM images revealed that Al-SBA-15 hold the long range ordering mesoporous structure compared with pure silica SBA-15.
