Design and preparation of nanoarchitectonics of LDH/polymer composite with particular morphology as catalyst for green synthesis of imidazole derivatives

Abstract

This paper was designed and prepared a new nanoarchitectonics of LDH/polymer composite with specific morphology. For this purpose, CTAB surfactant was used to control the morphology of layered double hydroxide (LDH) and to prepare LDH/polymer nanocomposites (LDH–APS–PEI–DTPA). The polymer was synthesized using diethylenetriaminepentaacetic acid (DTPA), polyethylenimine and used with LDH to form a nanocomposite with high thermal stability. Subsequently, the prepared nanocomposite was identified using FTIR, EDX, TGA, XRD, FESEM, and BET techniques. In addition, the prepared LDH–APS–PEI–DTPA nanocomposite was used as a heterogeneous and recyclable catalyst for the synthesis of imidazole derivatives under green conditions. The results showed that the LDH–APS–PEI–DTPA nanocomposite benefit from suitable morphology, simple preparation, high catalytic activity, and high surface area. Also, the proposed LDH–APS–PEI–DTPA heterogeneous catalyst showed high stability and reusability for five consecutive runs which was consistent with the principles of green chemistry.

Synthesis and characterization of new biocatalyst based on LDH functionalized with l-asparagine amino acid for the synthesis of tri-substituted derivatives of 2, 4, 5-(H1)-imidazoles

“…In the FT-IR spectrum of MgAl CO 3 -LDH ( Fig. 1 a), The broad absorption band is observed in the region of 3448 cm −1 , which is allocated to the stretching vibrations of the O–H group caused by interlayer water molecules and the hydroxyl groups in brucite-like layers [ 28 , 29 ]. The characteristic peak at 1672 cm −1 is related to the bending vibrations of the interlayer water molecule (HOH).…”

Materials Nanoarchitectonics for Advanced Physics Research

“…Many studies advocating nanoarchitectonics are related to the chemistry and bio-chemical fields. For example, in the areas of material creation, [90,91] structural control, [92,93] catalysis, [94,95] sensors, [96,97] basic bio-chemistry, [98,99] biomedical, [100,101] energy, [102,103] and environment. [104,105] However, since nanoarchitectonics is a method of architecting functional structures with a high degree of generality, it should have contributions that are independent of chemistry, physics, and biology.…”

Green Synthesis of Aromatic Nitrogen-Containing Heterocycles by Catalytic and Non-Traditional Activation Methods

“…The polymer portion of the catalysts was prepared from diethylenetriaminepentaacetic acid (DTPA), polyethylenimine and used LDH to form a nanocomposite with high thermal stability. The product nanocomposite is an active and recyclable (five times) heterogeneous catalyst for the synthesis of imidazoles ( Scheme 3 d) [ 52 ].…”