Fabrication of photocatalytic composite of multi-walled carbon nanotubes/TiO{sub 2} and its application for desulfurization of diesel

Journal Article · Wed Feb 15 00:00:00 EST 2012 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2011.11.016· OSTI ID:22212416

Nguyen, Thu Trang Thi; Nguyen, Phuong Hoa Thi; Do, Manh Hung; Au, Hang Thi ^[1]; Nguyen, Thanh Binh ^[2]; Nguyen, Dinh Lam ^[3]; Park, Jun Seo ^[4]

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1. Vietnam Institute of Industrial Chemistry, Hanoi (Viet Nam)
2. Faculty of Chemistry, Hanoi University of Science, Vietnam National University, Hanoi (Viet Nam)
3. Faculty of Chemical Engineering, Danang University of Technology, University of Danang (Viet Nam)
4. Division of Chemical Engineering, Hankyong National University, Ansung 456-749 (Korea, Republic of)

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.

• OSTI ID: 22212416
• Journal Information: Materials Research Bulletin, Vol. 47, Issue 2; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ADSORPTION
CARBON NANOTUBES
DESULFURIZATION
FABRICATION
IRRADIATION
MICROSTRUCTURE
PHOTOCATALYSIS
SCANNING ELECTRON MICROSCOPY
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION