Title: Synthesis, characterisation of nanoporous AlSiO₄-5 and AlSiO₄-12 catalysts, and its green catalytic application of CO₂ decomposition

Authors: M.A. Mary Thangam; Chellapandian Kannan

Addresses: Department of Chemistry, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli-12, Tamil Nadu, India; Department of Chemistry, Einstein College of Arts and Science, Tirunelveli, Tamil Nadu, India ' Department of Chemistry, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli-12, Tamil Nadu, India

Abstract: Global warming is a trendy term among researchers due to the increase of global temperature which causes severe environmental changes. By melting ice, causing weather extremes like flooding, water shortage and intense storm damage and disrupting the delicate balance of the oceans with increasing of CO₂ level in the atmosphere. In this paper, biodegradable surfactants (SDS and SDBS) are used as a template for the synthesis of solid acid catalysts. The influence of templates in the structural changes is studied by various spectroscopic techniques. The synthesised material is packed in a new U-type catalytic reactor and used for carbon dioxide decomposition reaction. AlSiO₄-5 and AlSiO₄-12 decomposed the CO₂ molecules into carbon monoxide, oxygen and carbon. AlSiO₄-12 decomposed nearly 73% of carbon dioxide at 100°C and AlSiO₄-5 decomposed 25% of CO₂ at 70°C. Complete decomposition also maximum in AlSiO₄-12 (31%).

Keywords: solid acid catalyst; nanoporous; template molecule; surfactant; biodegradable; AlSiO₄-5; AlSiO₄-12; CO₂ decomposition; catalytic activity.

DOI: 10.1504/IJNT.2021.116180

International Journal of Nanotechnology, 2021 Vol.18 No.5/6/7/8, pp.649 - 668

Published online: 12 Jul 2021 *

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