Visible light photodegradation of phenol on MWNT-TiO2 composite catalysts prepared by a modified sol-gel method

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Wang, WD (Author) Other; Serp, P (Author) Other; Kalck, P (Author) Other; Faria, JL (Author) FEUP

Journal

Title: Journal of Molecular Catalysis A: Chemical

Vol. 235

Pages: 194-199

ISSN: 1381-1169

Publisher: Elsevier B.V.

Indexing

ISI Web of Knowledge - 401 Citations

Scopus - 461 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-000-2N1

DOI: 10.1016/j.molcata.2005.02.027

Abstract (EN): Multi-walled carbon nanotubes (MWNT) and TiO2 composite catalysts were prepared by a modified sol-gel method. The nanoscaled composite materials were extensively characterized by TG, N-2 adsorption-desorption isotherm, XRD, SEM, EDX, TEM and UV-vis spectra. The photocatalytic degradation of phenol was performed under visible light irradiation on these catalysts, An optimum of synergetic effect on photocatalytic activity was observed for a weight ratio MWNT/TiO2 equal to 20% with an increase in the first-order rate constant by a factor of 4.1. The synergetic effect, induced by a strong interphase interaction between MWNT and TiO2, was discussed in terms of different roles played by MWNT in the composite catalysts.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6