Preparation and characterization of zeolite type 4A using Kaolin from Ajebo Nigeria


Citation

Ovri Henry, . and Ekpe Ikenna Christopher, . and Chaudhary Anna-Lisa, . and Mgbemere Henry Ekene, . and Lawal Ganiyu, . Preparation and characterization of zeolite type 4A using Kaolin from Ajebo Nigeria. pp. 2427-2438. ISSN 2231-8526

Abstract

This work investigates the hydrothermal synthesis and characterization of zeolite-4A from kaolin found in Ajebo Nigeria calcined at 700 and 900C respectively. The synthesized zeolite-4A was further characterised using X-ray Fluorescence (XRF) Fourier Transform Infrared spectrometer (FTIR) Scanning Electron Microscopy (SEM) X-Ray diffraction (XRD) Brunauer-Emmet-Teller (BET) surface area analysis as well as Differential Thermal Analysis/Thermo-gravimetric (TG). Water adsorption capacity tests were also carried out on the synthesized zeolite-4A. The results from the XRF measurements indicated that the amount of Al‚‚O· and SiO‚‚ in the studied kaolin was similar to the standard kaolin composition making it a perfect candidate for zeolite-4A synthesis. FTIR showed the characteristic zeolite peaks while XRD confirmed the crystalline nature of the synthesized zeolite-4A. TG studies showed that the zeolite-4A samples were stable up to temperatures of 700C. This stability as well as the surface area and pore size of 7 makes it potentially suitable for use in water treatment applications. The SEM showed cubic crystals which were typical of the morphology of zeolite-4A with water adsorption capacity of approximately 29. These results indicate that zeolite4A can be synthesized from kaolin found in Ajebo as an inexpensive alternative to traditionally sourced materials and also is suitable for use as adsorption agent.


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Abstract

This work investigates the hydrothermal synthesis and characterization of zeolite-4A from kaolin found in Ajebo Nigeria calcined at 700 and 900C respectively. The synthesized zeolite-4A was further characterised using X-ray Fluorescence (XRF) Fourier Transform Infrared spectrometer (FTIR) Scanning Electron Microscopy (SEM) X-Ray diffraction (XRD) Brunauer-Emmet-Teller (BET) surface area analysis as well as Differential Thermal Analysis/Thermo-gravimetric (TG). Water adsorption capacity tests were also carried out on the synthesized zeolite-4A. The results from the XRF measurements indicated that the amount of Al‚‚O· and SiO‚‚ in the studied kaolin was similar to the standard kaolin composition making it a perfect candidate for zeolite-4A synthesis. FTIR showed the characteristic zeolite peaks while XRD confirmed the crystalline nature of the synthesized zeolite-4A. TG studies showed that the zeolite-4A samples were stable up to temperatures of 700C. This stability as well as the surface area and pore size of 7 makes it potentially suitable for use in water treatment applications. The SEM showed cubic crystals which were typical of the morphology of zeolite-4A with water adsorption capacity of approximately 29. These results indicate that zeolite4A can be synthesized from kaolin found in Ajebo as an inexpensive alternative to traditionally sourced materials and also is suitable for use as adsorption agent.

Additional Metadata

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Item Type: Article
AGROVOC Term: Zeolites
AGROVOC Term: Adsorption
AGROVOC Term: Chemical composition
AGROVOC Term: Measurement
AGROVOC Term: Scanning microscopy
AGROVOC Term: Surface area
AGROVOC Term: Temperature
AGROVOC Term: Stability
AGROVOC Term: Crystallization
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:55
URI: http://webagris.upm.edu.my/id/eprint/9505

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