Photocatalytic Degradation of Sulfonamides over the Short Multi-Walled Carbon Nanotube-TiO2 Hybrid

Ke Dai; Hai Bo Chen; Chang Wei Liu; Hao Chen; Qiao Yun Huang

doi:10.4028/www.scientific.net/AMR.528.259

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 528Photocatalytic Degradation of Sulfonamides over...

Photocatalytic Degradation of Sulfonamides over the Short Multi-Walled Carbon Nanotube-TiO₂ Hybrid

Abstract:

The short multi-walled carbon nanotube-TiO2 (SMWNT-TiO2) hybrid was synthesized via direct growth of TiO2 nanoparticles on the surface of the functionalized SMWNTs by the hydrothermal treatment and utilized as the photocatalyst in the sulfonamides degradation under UV light irradiation. The photodegradation efficiency of sulfonamides was examined by HPLC technique, which demonstrates that sulfonamides can be readily degraded under UV light irradiation. However, the four sulfonamides have different degradation rates, which is in the order of sulfadimidine > sulfanilamide > sulfamethoxazole > sulfathiazole. These experimental results can be attributed to the point charge of the atoms in the sulfonamide molecule and its adsorption on the surface of the SMWNT-TiO2 hybrid.

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Periodical:

Advanced Materials Research (Volume 528)

Pages:

259-262

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.528.259

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Online since:

June 2012

Authors:

Ke Dai, Hai Bo Chen, Chang Wei Liu, Hao Chen, Qiao Yun Huang

Keywords:

Multi-Walled Carbon Nanotube (MWCNT), Photocatalytic Degradation, Sulfonamide, TiO₂

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