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Title: Synthesis of visible light-activated TiO{sub 2} photocatalyst via surface organic modification

Abstract

A visible light-activated TiO{sub 2} photocatalyst was successfully synthesized by the surface organic modification to sol-gel-hydrothermal synthesized TiO{sub 2}. The surface hydroxyls of TiO{sub 2} nanoparticles reacted with the active -NCO groups of tolylene diisocyanate (TDI) to form a surface complex that was confirmed by the FT-IR and XPS spectra. Due to the existence of surface complex, the absorption edge of as-prepared TDI-modified TiO{sub 2} nanomaterial extended well into visible region. Compared with unmodified TiO{sub 2} and Degussa P25, the TDI-modified TiO{sub 2} photocatalysts showed higher activity for the photocatalytic degradation of methylene blue under visible light irradiation. - Graphical abstract: A visible light-activated TiO{sub 2} photocatalyst was successfully synthesized by the surface organic modification to TiO{sub 2}. The surface hydroxyls of TiO{sub 2} nanoparticles reacted with the active -NCO groups of tolylene diisocyanate (TDI) to form a surface complex. The TDI-modified TiO{sub 2} photocatalysts showed higher activity for the photocatalytic degradation of methylene blue under visible light irradiation.

Authors:
 [1];  [2];  [3];  [4];  [1];  [5]
  1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 (China)
  2. (China), E-mail: jdred@sxicc.ac.cn
  3. Key Laboratory of Carbon Material, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 (China), E-mail: xuyao@sxicc.ac.cn
  4. Key Laboratory of Carbon Material, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 (China)
  5. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 (China), E-mail: yhsun@sxicc.ac.cn
Publication Date:
OSTI Identifier:
21015838
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 180; Journal Issue: 5; Other Information: DOI: 10.1016/j.jssc.2007.03.010; PII: S0022-4596(07)00107-7; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; FOURIER TRANSFORMATION; INFRARED SPECTRA; IRRADIATION; METHYLENE BLUE; NANOSTRUCTURES; PARTICLES; PHOTOCATALYSIS; SOL-GEL PROCESS; SURFACES; SYNTHESIS; TITANIUM OXIDES; VISIBLE RADIATION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Jiang Dong, Graduate School of Chinese Academy of Sciences, Beijing 100039, Xu Yao, Hou Bo, Wu Dong, and Sun Yuhan. Synthesis of visible light-activated TiO{sub 2} photocatalyst via surface organic modification. United States: N. p., 2007. Web. doi:10.1016/j.jssc.2007.03.010.
Jiang Dong, Graduate School of Chinese Academy of Sciences, Beijing 100039, Xu Yao, Hou Bo, Wu Dong, & Sun Yuhan. Synthesis of visible light-activated TiO{sub 2} photocatalyst via surface organic modification. United States. doi:10.1016/j.jssc.2007.03.010.
Jiang Dong, Graduate School of Chinese Academy of Sciences, Beijing 100039, Xu Yao, Hou Bo, Wu Dong, and Sun Yuhan. Tue . "Synthesis of visible light-activated TiO{sub 2} photocatalyst via surface organic modification". United States. doi:10.1016/j.jssc.2007.03.010.
@article{osti_21015838,
title = {Synthesis of visible light-activated TiO{sub 2} photocatalyst via surface organic modification},
author = {Jiang Dong and Graduate School of Chinese Academy of Sciences, Beijing 100039 and Xu Yao and Hou Bo and Wu Dong and Sun Yuhan},
abstractNote = {A visible light-activated TiO{sub 2} photocatalyst was successfully synthesized by the surface organic modification to sol-gel-hydrothermal synthesized TiO{sub 2}. The surface hydroxyls of TiO{sub 2} nanoparticles reacted with the active -NCO groups of tolylene diisocyanate (TDI) to form a surface complex that was confirmed by the FT-IR and XPS spectra. Due to the existence of surface complex, the absorption edge of as-prepared TDI-modified TiO{sub 2} nanomaterial extended well into visible region. Compared with unmodified TiO{sub 2} and Degussa P25, the TDI-modified TiO{sub 2} photocatalysts showed higher activity for the photocatalytic degradation of methylene blue under visible light irradiation. - Graphical abstract: A visible light-activated TiO{sub 2} photocatalyst was successfully synthesized by the surface organic modification to TiO{sub 2}. The surface hydroxyls of TiO{sub 2} nanoparticles reacted with the active -NCO groups of tolylene diisocyanate (TDI) to form a surface complex. The TDI-modified TiO{sub 2} photocatalysts showed higher activity for the photocatalytic degradation of methylene blue under visible light irradiation.},
doi = {10.1016/j.jssc.2007.03.010},
journal = {Journal of Solid State Chemistry},
number = 5,
volume = 180,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}