NDLI: Synthesis and characterization of carbon-doped titania as a visible-light-sensitive photocatalyst

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Synthesis and characterization of carbon-doped titania as a visible-light-sensitive photocatalyst

Content Provider	Semantic Scholar
Author	Lee, Suseung Yun, Chang Yeon Hahn, M. Yi, Jongheop
Copyright Year	2008
Abstract	−The synthesis and use of carbon-doped TiO2 particles in photocatalysis under visible light are demonstrated. The carbon-doped titania with its mesoporous structure was prepared by chemical modification and characterized by several techniques including X-ray diffraction, transmission electron spectroscopy (TEM), X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance spectra (EPR), and diffuse reflectance UV-Vis. absorption spectra, with emphasis on the effect of carbon as a doping compound to the titania. Based on EPR data, the photocatalytic activity by visible light can be ascribed to the trapping of electrons at interior sites of the carbon-doped titania between the valence and conduction bands in the titania band structure, and is able to activated by visible light of a wavelength of up to 550 nm. The photocatalytic activity of the carbon-doped TiO2 nanoparticles was evaluated by examining the decomposition of phenol by irradiation with artificial solar light (>420 nm) and the results were compared with those using Degussa P25, a commercially available titania nanomaterial.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://www.cheric.org/PDF/KJChE/KC25/KC25-4-0892.pdf
Language	English
Access Restriction	Open
Subject Keyword	Bands Diagnostic radiologic examination Doping (semiconductor) Doping in Sports EPR paradox Electron Spin Resonance Spectroscopy Electronic band structure Electrons Less Than Light, Visible Nanostructured Materials P25 ISSI Phenols Photoelectric effect Project 25 Structural Modifier Synthetic data Titania Trap (computing) X-Ray Photoelectron Spectroscopy phenol wavelength
Content Type	Text
Resource Type	Article

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