10.7508/ijnd.2013.01.008

Synthesis and characterization of nanocrystalline CoAPO-5: Structural and morphological analysis by alteration on hydrothermal parameters

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  • A. Hassanvand1,
  • M. Asghari2,
  • H. Halakoei3,
  • B. Rajaei2,
  1. Separation Processes Research Group (SPRG), Department of Engineering, University of Kashan, Kashan, Iran.
  2. Energy Research Institute, University of Kashan, Ghotb-e-Ravandi Ave., Kashan, Iran.
  3. Energy Research Institute, University of Kashan, Kashan, Iran.

Published in Issue 2024-02-29

How to Cite

Hassanvand, A., Asghari, M., Halakoei, H., & Rajaei, B. (2024). Synthesis and characterization of nanocrystalline CoAPO-5: Structural and morphological analysis by alteration on hydrothermal parameters. International Journal of Nano Dimension, 4(1). https://doi.org/10.7508/ijnd.2013.01.008
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Abstract

Nano-zeolite CoAPO-5 as a member of AFI family, was synthesized via a hydrothermal treatment, and structurally characterized using X-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive X-ray analysis (EDAX). The effects of crystallization temperature and time on the structure of these powder products were studied. XRD patterns of the synthesized powders revealed a high-crystallinity and pure phase of AFI. SEM images and Scherrer equation showed the nano-size of the obtained CoAPO-5. Also, SEM images showed nano-wires as small as 30-50 nm in CoAPO-5 structures. According to EDAX analysis, P/Al ratio of the prepared CoAPO-5 powder was about 1.5. Crystal sizes and the crystallinity of CoAPO-5 reduced at higher temperatures of hydrothermal treatment. On the other hand, the larger crystals grew by increasing the crystallization time from 24 to 48 h.

Keywords

  • Characterization,
  • CoAPO-5,
  • Nano-Zeolite,
  • structure,
  • Synthesis,
  • Temperature
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