Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability
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),...
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MDPI AG
2015-04-01
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| Online Access: | http://www.mdpi.com/1996-1944/8/4/1752 |
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| author | Wang Qian Haiqing Wang Jin Chen Yan Kong |
| author_facet | Wang Qian Haiqing Wang Jin Chen Yan Kong |
| author_sort | Wang Qian |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-12T23:48:37Z |
| format | Article |
| id | doaj.art-f1f53f9e9ffc4d68a21c96a736a98265 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-12T23:48:37Z |
| publishDate | 2015-04-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-f1f53f9e9ffc4d68a21c96a736a982652022-12-22T03:11:46ZengMDPI AGMaterials1996-19442015-04-01841752176510.3390/ma8041752ma8041752Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal StabilityWang Qian0Haiqing Wang1Jin Chen2Yan Kong3State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, ChinaSpherical 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.http://www.mdpi.com/1996-1944/8/4/1752mesoporous sieveMCM-48co-dopingmorphologyhydrothermal stability |
| spellingShingle | Wang Qian Haiqing Wang Jin Chen Yan Kong Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability Materials mesoporous sieve MCM-48 co-doping morphology hydrothermal stability |
| title | Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability |
| title_full | Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability |
| title_fullStr | Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability |
| title_full_unstemmed | Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability |
| title_short | Spherical V-Fe-MCM-48: The Synthesis, Characterization and Hydrothermal Stability |
| title_sort | spherical v fe mcm 48 the synthesis characterization and hydrothermal stability |
| topic | mesoporous sieve MCM-48 co-doping morphology hydrothermal stability |
| url | http://www.mdpi.com/1996-1944/8/4/1752 |
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