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Open AccessArticle

Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability

State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
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Academic Editor: Rafael Luque
Materials 2015, 8(4), 1752-1765; https://doi.org/10.3390/ma8041752
Received: 14 February 2015 / Revised: 30 March 2015 / Accepted: 31 March 2015 / Published: 14 April 2015
(This article belongs to the Special Issue Advances in Mesoporous Material 2015)
Spherical MCM-48 mesoporous sieve co-doped with vanadium and iron was successfully synthesized via one-step hydrothermal method. The material was characterized by X-ray diffraction (XRD), nitrogen adsorption-desorption isotherms, inductively coupled plasma (ICP), scanning electron microscopy (SEM), transmission electron microscopy (TEM), diffuse reflectance UV-vis spectra, and X-ray photoelectron spectra (XPS) techniques. Results indicated that the V-Fe-MCM-48 showed an ordered 3D cubic mesostructure with spherical morphology, narrow pore size distribution and high specific surface area. Most of vanadium and iron atoms existing as tetrahedral V4+ and Fe3+ species were co-doped into the silicate framework. The particle sizes of V-Fe-MCM-48 were smaller and the specific area was much higher than those of of V-MCM-48. Additionally, the synthesized V-Fe-MCM-48 exhibited improved hydrothermal stability compared with the pure MCM-48. View Full-Text
Keywords: mesoporous sieve; MCM-48; co-doping; morphology; hydrothermal stability mesoporous sieve; MCM-48; co-doping; morphology; hydrothermal stability
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Qian, W.; Wang, H.; Chen, J.; Kong, Y. Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability. Materials 2015, 8, 1752-1765.

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