10.1186/2228-5326-2-10

Synthesis, characterization, and photocatalytic activity of MCM-41 and MCM-48 impregnated with CeO2 nanoparticles

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  • Hamid Reza Pouretedal*1,
  • Mina Ahmadi2,
  1. Faculty of Applied Chemistry, Malek-Ashtar University of Technology, Shahin-Shahr, 83145-115, IR
  2. Department of Chemistry, Islamic Azad University, Shahreza, IR
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Published in Issue 2012-06-22

How to Cite

Pouretedal, H. R., & Ahmadi, M. (2012). Synthesis, characterization, and photocatalytic activity of MCM-41 and MCM-48 impregnated with CeO2 nanoparticles. International Nano Letters, 2(1 (December 2012). https://doi.org/10.1186/2228-5326-2-10
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Abstract

Abstract MCM-41/CeO 2 and MCM-48/CeO 2 were synthesized by direct and indirect methods in solvent media and by grinding method in a solvent-free media. The materials prepared by grinding method are characterized by X-ray diffraction, infrared spectrum analysis, and N 2 adsorption and desorption. Surface areas and pore size of MCM-48/CeO 2 were obtained with values of 680.9 m 2 ·g −1 and 1.64 nm, respectively, by BET method. The results showed that CeO 2 nanoparticles were introduced into MCM-41 and MCM-48, and there was formation of CeO 2 crystallites as secondary phase in the extra framework of MCM-41 and MCM-48. MCM-41/CeO 2 and MCM-48/CeO 2 materials are used as photocatalysts in degradation of Congo red as a dye pollutant. The MCM-41/CeO 2 and MCM-48/CeO 2 prepared by grinding method showed the higher photoreactivity with 97.6 % and 93.1 %, respectively, of degradation of Congo red. The higher photoreactivity is due to the complete incorporation of cerium ions in mesoporous material of MCMs in a solvent-free media.

Keywords

  • Photocatalytic,
  • MCM-41,
  • MCM-48,
  • CeO2,
  • Congo red
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