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Enhanced Oxidative Desulfurization of Dibenzothiophene by Functional Mo‐Containing Mesoporous Silica
Author(s) -
Zhang Ming,
Zhu Wenshuai,
Xun Suhang,
Xiong Jun,
Ding Wenjing,
Li Meng,
Wang Qian,
Li Huaming
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400023
Subject(s) - dibenzothiophene , flue gas desulfurization , mesoporous material , catalysis , sulfur , molybdenum , diffuse reflectance infrared fourier transform , raman spectroscopy , hydrodesulfurization , chemistry , dispersion (optics) , catalytic oxidation , mesoporous silica , materials science , chemical engineering , inorganic chemistry , nuclear chemistry , organic chemistry , photocatalysis , physics , optics , engineering
Functional mesoporous Mo–SiO 2 materials were synthesized by a one‐pot and facile room‐temperature procedure, and characterized by X‐ray diffraction, TEM, Raman spectroscopy, FT‐IR, diffuse reflectance spectra, and BET analysis. The experimental results demonstrated that the mesoporous materials presented a high dispersion of molybdenum species and excellent catalytic activity for the removal of dibenzothiophene (DBT) without organic solvents as extractants. The catalytic performance on different sulfur‐containing compounds was also investigated in detail. After recycling for eight times, the removal of the oxidation desulfurization system could still reach high values. GC‐MS analysis detected the oxidation product of DBT. A mechanism was proposed for the absorptive oxidation process of sulfur compounds.