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Title
Synthses and study inorganic-organic nanohybrides of Mg- Al layered double hydroxides with 1,3,5 benzene tricarboxylate
Type of Research Presentation
Keywords
nanohybrides
Abstract
Layered double hydroxides (LDHs) or hydrotalcite-like compounds are presented by the general formula [M1-xII MIIIx (OH)2 ]x+ [An-]x/n .yH2O. The basic structure of an LDH may be derived by substitution of a fraction of the divalent cations in a brucite lattice with trivalent cations such that the layers acquire a positive charge, which is balanced by intercalation of anions (and, usually, water) between the layers.1,2 In this role they have been used extensively as ion-exchange materials, catalysts, sorbents and halogen absorbers. 1,3,5 benzene tricarboxylate, (BTC3-) , as anionic form, was selected to modify the magnesium / aluminum (Mg/Al) layered double hydroxide (LDH) using the coprecipitation method. Powder X-ray diffraction (XRD) and Fouriar transform infrared (FT-IR) and elemental analyses (CHN) methods were used to identify the incorporaction of BTC3- within the inorganic nanolayers of LDH. Powder x-ray diffraction pattern of BTC-Mg-Al-LDH nanohybrid shows that the interlayer distance has very small change which corresponds to a horizontal orientation of 1,3,5 benzene tricarboxylate anion (fig. 1). The interlayer structure, hydrogen bonding, and subsequent changes of LDH compounds containing trimesic acid anions will be investigated by molecular simulation.
Researchers Nasrin Babaei (First Researcher)، Zolfaghar Rezvani (Second Researcher)