Fabrication of photocatalytic composite of multi-walled carbon nanotubes/TiO2 and its application for desulfurization of diesel
| Autor: | Manh Hung Do, Thanh Binh Nguyen, Dinh Lam Nguyen, Thu Ha Thi Vu, Jun Seo Park, Hang Thi Au, Phuong Nguyen, Thu Trang Thi Nguyen |
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| Rok vydání: | 2012 |
| Předmět: |
Materials science
Scanning electron microscope Mechanical Engineering Composite number Oxide chemistry.chemical_element Nanotechnology Carbon nanotube Condensed Matter Physics Microstructure law.invention chemistry.chemical_compound chemistry Chemical engineering Mechanics of Materials law Dibenzothiophene Photocatalysis General Materials Science Titanium |
| Zdroj: | Materials Research Bulletin. 47:308-314 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/j.materresbull.2011.11.016 |
| Popis: | Highlights: Black-Right-Pointing-Pointer MWNTs and TiO{sub 2} were mixed well, forming uniform microstructure in MWNTs/TiO{sub 2} composites. Black-Right-Pointing-Pointer The combination of MWNTs and TiO{sub 2} contribute to improving photocatalytic activity of TiO{sub 2}. Black-Right-Pointing-Pointer MWNTs/TiO{sub 2} composite is an effective photo-catalyst for the removal of sulfur from commercial diesel. -- Abstract: Composite of multi-walled carbon nanotubes (MWNTs) and titanium (IV) oxide (TiO{sub 2}) were prepared by a heterogeneous gelation method. The activities of the MWNTs/TiO{sub 2} composites were evaluated by photocatalytic oxidative desulfurization using dibenzothiophene (DBT), 4,6-dimethyl dibenzothiophene (4,6-DMDBT), n-tetradecane, and commercial diesel under irradiation using a high-pressure Hg lamp. The microstructures of MWNTs/TiO{sub 2} composites were characterized by N{sub 2} adsorption, scanning electron microscopy, transmission electron microscope, and X-ray diffraction. It was found that more than 98% of sulfur compounds in commercial diesel were oxidized and removed by the use of the MWNTs/TiO{sub 2} composite as a photocatalyst. |
| Databáze: | OpenAIRE |
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