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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 11
BKCSDE 30(11)
November 20, 2009

Title	Preparation of MWCNT/TiO2 Composites by Using MWCNTs and Titanium(IV) Alkoxide Precursors in Benzene and their Photocatalytic Effect and Bactericidal Activity
Author	Won Chun Oh*, Feng Jun Zhang, Ming Liang Chen
Keywords	MWCNTs, Titanium alkoxide, TEM, Photocatalytic decomposition, Bactericidal activity
Abstract	In this present paper, we prepared MWCNT/TiO₂ composites by using pre-oxidized multi-walled carbon nanotubes (MWCNTs) with different titanium alkoxide precursors in benzene solvent. The composites were comprehensively characterized by BET surface area, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX) and UV-Vis absorption spectroscopy. The photoactivity of the prepared materials, under UV irradiation, was tested using methylene blue (MB) in aqueous solution. Finally, according to the results of MB removal experiment, it can be considered that the MB degradation infect mainly caused by photocatalytic effect of TiO₂. Furthermore, the bactericidal test of the composites was also determined. It was indicated that MWCNT/TiO₂ composites with sunlight had greater effectiveness for B. cereus, S. aureus and E. coli than any other experimental conditions.
Page	2637 - 2642
Full Text	PDF

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