A new method for fast intercalation of bulk crown ether guest into LDH.
作者： Shulan Ma , Juan Wang , Li Du , Yahong Sun , Qingyang Gu
DOI: 10.1016/J.JCIS.2012.10.015
关键词:
摘要: Abstract Fast intercalation of macrocyclic tetraazacrown ether carboxylic acid derivative (TECA) into the interlayer Mg/Al-layered double hydroxide (Mg/Al-LDH) via a “one-step” reaction in formamide was carried out. Compared with swelling/restoration and ion-exchange reactions, this method can markedly decrease time (even shorter than 10 min), thus give high yield products well-retain hexagonal morphology starting LDH. The investigation process demonstrated that preceding combination TECA accelerated swelling LDH, quasi-homogeneous colloidal system promoted facile incorporation LDH sheets to cause their quick restoration. obtained staging structure may originate from flexibility crown guest host layer, structural transformation homogeneous second-staging suggests Daumas–Herold model rarely observed system. simple fast one-step conveniently fabricate new multifunctional hybrid materials combined advantages organic/inorganic intercalates plus those host.
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