Pranav Sankarana, Kannan Kandasamya,*, Aravindh Rajagopalanb and Boopathy Raja Chenniappanc
aDepartment of Chemical Engineering, Kongu Engineering College, Erode
bDepartment of Chemical and Material Sciences, Amirta Viswa Vidyapeetham, Coimbatore
cSolid State Electronics(SEES), Zacatanco, CInvestav, Mexico City
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Kaolin clay mineral is transformed into cage-type catalysts with acid sites through a hydrothermal process at three different temperatures namely 100, 125, and 150 °C using N-propyl amine at three different time durations between 24 to 48 hours. The catalysts were supported with silicon dioxide. Supported and unsupported catalysts were characterized by SEM, TEM, FTIR, BET Surface area Analysis, and TGA. The catalysts synthesized indicated the presence of nearly uniform-shaped particles with good surface area and thermal stability. The acid site concentration in the catalysts is improving upon synthesis at low temperature and limited time duration. The catalysts were found to be effective in improving the selectivity for the cyclization of citronellal to isopulegol
Keywords: Kaolin, Mesoporous catalysts, Hydrothermal synthesis, Organic amines, Sustainability
2022; 23(5): 666-671
Published on Oct 31, 2022
Department of Chemical Engineering, Kongu Engineering College, Erode
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