化学通报（印刷版）
化學通報（印刷版）
화학통보（인쇄판）
CHEMISTRY
2009年
11期
1003-1007
,共5页
吴健松%肖应凯%罗肖丽%祝桂莲%丁玲弟%陈浪英
吳健鬆%肖應凱%囉肖麗%祝桂蓮%丁玲弟%陳浪英
오건송%초응개%라초려%축계련%정령제%진랑영
乙二醇%水热法%镁铝水滑石%组装
乙二醇%水熱法%鎂鋁水滑石%組裝
을이순%수열법%미려수활석%조장
Glycol%Hydrothermal%Mg-AI hydrotalcite%Assemblage
以MgCl_2·6H_2O、AlCl_3·6H_2O、Na_2CO_3为原料,采用乙二醇-水热法组装了超分子结构镁铝水滑石,考察了乙二醇-水热法对水滑石晶形、结构、分散性、规整性的影响.样品用XRD、SEM、TEM、IR、TG-DTA、N_2吸附-解吸进行了表征.结果表明,在水热反应体系中加入15(vol)%的乙二醇,于T-180℃反应16h可获得晶形好、板层结构显著、规整性好、分散性好的优质镁铝水滑石,谢乐公式估算粒子粒径为36nm左右.
以MgCl_2·6H_2O、AlCl_3·6H_2O、Na_2CO_3為原料,採用乙二醇-水熱法組裝瞭超分子結構鎂鋁水滑石,攷察瞭乙二醇-水熱法對水滑石晶形、結構、分散性、規整性的影響.樣品用XRD、SEM、TEM、IR、TG-DTA、N_2吸附-解吸進行瞭錶徵.結果錶明,在水熱反應體繫中加入15(vol)%的乙二醇,于T-180℃反應16h可穫得晶形好、闆層結構顯著、規整性好、分散性好的優質鎂鋁水滑石,謝樂公式估算粒子粒徑為36nm左右.
이MgCl_2·6H_2O、AlCl_3·6H_2O、Na_2CO_3위원료,채용을이순-수열법조장료초분자결구미려수활석,고찰료을이순-수열법대수활석정형、결구、분산성、규정성적영향.양품용XRD、SEM、TEM、IR、TG-DTA、N_2흡부-해흡진행료표정.결과표명,재수열반응체계중가입15(vol)%적을이순,우T-180℃반응16h가획득정형호、판층결구현저、규정성호、분산성호적우질미려수활석,사악공식고산입자립경위36nm좌우.
A regular nanocrystalline supramolecular Mg-Al hydrotalcite was assembled via glycol hydrothermal using MgCl_2·6H_2O、AlCl_3·6H_2O、Na_2CO_3 as starting materials and sodium hydroxide as precipitator. Hydrotalcite samples were characterized by XRD, SEM, TEM, IR, TG-DTA and BET-N_2 surface area measurements and the influence of glycol-hydrothermal on characters of the sample was investigated. The Mg-Al hydrotalcite with well-defined shape, obvious intercalated structure, well regular quality and well-dispersing capability can be obtained under the conditions at glycol volume ratio 15% ,bydrothermal temperature 180℃ and reaction time 16h. The hydrotalcite obtained was well crystallized and had morphology of a homogeneous and hexagonal sheet, the thickness measured of each hexagon in the hydrotalcite was about 36 nm which was consistent with the value estimated by Scberrer equation.
