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Publication No: IN202411055558 [India] Application No: IN202411055558
Title: Method for controlled synthesis of Mn3O4 nanomaterials and their nitrogen-rich G-C3N4 composites for CO2 adsorption
Publication Date: 30-01-2026 File Date: 19-07-2024
Inventor(s): Mysore Sridhar Santosh; Afaq Ahmad Khan
IPC Classification: B01J27/24, B01J35/00, B22F9/24, B82Y30/00, H01C7/112
Abstract: The present invention relates to a procedure for the design and controlled synthesis of Mn3O4 nanomaterials using precipitation and solvothermal methods. More  particularly, this invention encompasses the synthesis of 2D Mn3O4 nanomaterials and 3D Mn3O4 by the self-assembly of 2D Mn3O4 by controlling the reaction time.  The deep-eutectic-solvent is used as a reaction solvent as well as a nanomaterial structure-controlling agent. The nitrogen-rich g-C3N4 is synthesized using ammonium  chloride as a nitrogen source and used to prepare nitrogen-rich g-C3N4/ Mn3O4 composites. The synthesized nanomaterials are characterized using various analytic  methods. The morphology of Mn3O4 was found as 2D flakes using the precipitation method. The Mn3O4 nanomaterials synthesized using the solvothermal method  were obtained as more 2D flakes at 3 hours of synthesis reaction time and formed 3D peanut-shaped particles (2D-flakes self-assembly) at 12 hours of synthesis  reaction time. The synthesized nanomaterials and composites are used for CO2 adsorption and conversion to value-added chemicals. The obtained results indicate that  synthesized materials'' morphology significantly impacted CO2 adsorption and its conversion.
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