C/TiO{sub 2} nanohybrids co-doped by N and their enhanced photocatalytic ability

Journal Article · Wed Aug 15 00:00:00 EDT 2012 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/J.JSSC.2012.04.033· OSTI ID:22131136

Hai, Ming; Hui, Huang; Keming, Pan; Haitao, Li ^[1]

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1. Institute of Functional Nano and Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123 (China)

N-doping carbon-TiO{sub 2} nanohybrids (NCTs, nitrogen not only in situ doped carbon film but also doped TiO{sub 2} nanocrystals, and 5-10 nm TiO{sub 2} nanocrystals evenly dispersed on N-doping carbon film) have been successfully prepared by a mild, one-step approach. N-O-Ti chemical bonds between N-Carbon film and N-TiO{sub 2} nanoparticles were formed, and here, N-Carbon can not only sensitize and modify TiO{sub 2} nanocrystals surface, but also N can dope in the TiO{sub 2} nanocrystals. The as-prepared NCTs were investigated by X-ray photoelectron spectroscopy, TEM, FT-IR, electrochemistry method. It was demonstrated that the as-obtained NCTs have a large BET specific surface area of 279.43 m{sup 2}/g. The NCTs show excellent photocatalytic abilities towards organic (Rhodamine B) and inorganic pollutant (K{sub 2}Cr{sub 2}O{sub 7}) degradation under visible light irradiation. This work provided a new approach for the high performance catalyst design towards new energy sources and environmental issues. - Graphical abstract: C/TiO{sub 2} nanohybrids co-doped by N with excellent photocatalytic performance were prepared. Highlights: Black-Right-Pointing-Pointer C/TiO{sub 2} nanohybrids (NCTs) co-doped by nitrogen (N) were prepared. Black-Right-Pointing-Pointer N was not only in situ doped in carbon film but also doped in TiO{sub 2} nanoparticles. Black-Right-Pointing-Pointer N-O-Ti chemical bonds were formed between C film and TiO{sub 2} nanoparticles. Black-Right-Pointing-Pointer NCTs exhibited excellent visible-light photocatalytic performance.

• OSTI ID: 22131136
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Vol. 192; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
77 NANOSCIENCE AND NANOTECHNOLOGY
CARBON
CHEMICAL BONDS
DOPED MATERIALS
ELECTROCHEMISTRY
FILMS
FOURIER TRANSFORMATION
INFRARED SPECTRA
IRRADIATION
NANOSTRUCTURES
NITROGEN
PARTICLES
PHOTOCATALYSIS
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY PHOTOELECTRON SPECTROSCOPY