The Intercalation Of Organic Anion With Benzene Rings In The Layered Double Hydroxides Research

Since the phenomenon of aggregation induced emission(AIE) was proposed, its interesting properties has quickly became a hot topic of solid organic fluorescent materials. LDHs used to be a laboratory anion exchanger, and its special layered structure has greatly aroused the interest of researchers.In this thesis, we chose the MgAl-LDHs as host, phenolic and organic fluorescent molecules(CTPVBP、H4ETTC) with the phenomenon of AIE as guest to form the organic-inorganic composite materials. We study the optical properties of CTPVBP-LDHs, H4ETTC-LDHs. What’s more, the phenolic-LDHs was synthesized to prepare the graphene. There are there parts in this thesis:(1) MgAl-LDHs nanosheets have been prepared by MgCl2 · 6H2 O and AlCl3 · 6H2 O as raw materials with the ratio of 3:1, NaOH solution as solvent, via hydrothermal method under the temperature of 100 ℃ for 6 hours.CTPVBP-MgAlLDHs nanosheets have been prepared by the method of ion exchange without water. We studied the influences of different reaction time and different centrifugation times on the UV and PL spectrum of CTPVBP-MgAlLDHs, what’more,compared with the UV and PL spectrum of CTPVBP-MgAl LDHs in the aggregate state, we found difference. By studying the mechanism we firstly proposed the phenomenon which named space confinement induced emission(SCIE). The crystal forms, compositions and morphologies of products are analyzed by XRD and TEM.(2)H4ETTC-MgAl LDHs nanosheets have been prepared to studied the influences of different reaction time and different centrifugation times on its UV and PL spectrum.The reason confirmed the same view about SCIE. The crystal forms, compositions and morphologies of products are analyzed by XRD and TEM.(3)Phenolic-MgAlLDHs nanosheets were prepared in order to obtain the graphene-MgAlLDHs by carbonization under the temperature of 500 ℃.Under the protect of CTAB surfactant, the hydrochloric acid was added into the graphene-MgAlLDHs toobtain graphene nanosheet. We compared with UV spectrum of the phenolic oligomer-LDHs, phenolic polymers-LDHs, phenolic oligomer. Graphene were characterized by the XRD,Raman spectrum,SEM,TEM and so on.