Journal
APPLIED NANOSCIENCE
Volume 7, Issue 8, Pages 577-588Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13204-017-0595-6
Keywords
Aminoclay-Ni catalyst; Synthesis and characterization; Schiff base; H-1-NMR spectroscopy; Catalytic reduction
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A novel Ni complexed aminoclay (AC) catalyst was prepared by complexation method followed by reduction reaction. Various analytical techniques such as FTIR spectroscopy, UV-visible spectroscopy, DSC, TGA, SEM, HRTEM, EDX, XPS and WCA measurement are used to characterize the synthesized material. The AC-Ni catalyst system exhibited improved thermal stability and fiber-like morphology. The XPS results declared the formation of Ni nanoparticles. Thus, synthesized catalyst was tested towards the Schiff base formation reaction between various bio-medical polymers and aniline under air atmosphere at 85 degrees C for 24 h. The catalytic activity of the catalyst was studied by varying the % weight loading of the AC-Ni system towards the Schiff base formation. The Schiff base formation was quantitatively calculated by the H-1-NMR spectroscopy. While increasing the % weight loading of the AC-Ni catalyst, the % yield of Schiff base was also increased. The kapp and Ti values were determined for the reduction of indole and alpha-terpineol in the presence of AC-Ni catalyst system. The experimental results were compared with the literature report.
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