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Titanium-Pillared Clay: Preparation Optimization, Characterization, and Artificial Neural Network Modeling.

Seyed Heydar Mosavi Mirak1, Seyedmehdi Sharifian1, Fatemeh Esmaeili Khalil Saraei1

  • 1Fouman Faculty of Engineering, College of Engineering, University of Tehran, Fouman 43516-66456, Iran.

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Summary

Titanium-pillared clay (Ti-PILC) was optimized for enhanced surface area, crucial for adsorption and catalysis. Clay suspension concentration and H+/Ti ratio significantly impact Ti-PILC properties.

Keywords:
artificial neural networkcharacterizationintercalationpillared claytitanium

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Environmental Chemistry

Background:

  • Porous materials like titanium-pillared clay (Ti-PILC) are vital as adsorbents and photocatalysts.
  • Optimizing Ti-PILC synthesis is key to maximizing its surface area and performance.

Purpose of the Study:

  • To optimize the production of titanium-pillared clay (Ti-PILC) using Iranian clay.
  • To investigate the impact of key synthesis parameters on Ti-PILC's specific surface area.

Main Methods:

  • Preparation of Ti-PILC from local clay and titanium isopropoxide.
  • Optimization of clay suspension concentration, H+/Ti ratio, and calcination temperature.
  • Characterization using FTIR, SEM, and BET surface area analysis.

Main Results:

  • The highest specific surface area achieved was 164 m²/g with 0.5% clay suspension and H+/Ti ratio of 6.
  • Clay suspension concentration (56%) and H+/Ti ratio (37%) were the dominant factors influencing surface area.
  • Calcination temperature had a minimal effect (7%) on the porous texture.

Conclusions:

  • Optimized Ti-PILC synthesis significantly enhances surface area compared to raw clay.
  • The study identified optimal parameters for producing high-surface-area Ti-PILC for adsorption and catalytic applications.
  • Rutile and anatase phases of TiO2 were detected, indicating successful pillaring.