Synthesis of visible light-activated TiO2 photocatalyst via surface organic modification
Creators
- 1. Graduate School of Chinese Academy of Sciences, Beijing 100039 (China)
- 2. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 (China)
- 3. Key Laboratory of Carbon Material, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001 (China)
Description
A visible light-activated TiO2 photocatalyst was successfully synthesized by the surface organic modification to sol-gel-hydrothermal synthesized TiO2. The surface hydroxyls of TiO2 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 TiO2 nanomaterial extended well into visible region. Compared with unmodified TiO2 and Degussa P25, the TDI-modified TiO2 photocatalysts showed higher activity for the photocatalytic degradation of methylene blue under visible light irradiation. - Graphical abstract: A visible light-activated TiO2 photocatalyst was successfully synthesized by the surface organic modification to TiO2. The surface hydroxyls of TiO2 nanoparticles reacted with the active -NCO groups of tolylene diisocyanate (TDI) to form a surface complex. The TDI-modified TiO2 photocatalysts showed higher activity for the photocatalytic degradation of methylene blue under visible light irradiation
Additional details
Identifiers
- DOI
- 10.1016/j.jssc.2007.03.010;
- PII
- S0022-4596(07)00107-7;
Publishing Information
- Journal Title
- Journal of Solid State Chemistry
- Journal Volume
- 180
- Journal Issue
- 5
- Journal Page Range
- p. 1787-1791
- ISSN
- 0022-4596
- CODEN
- JSSCBI
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39038053
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ABSORPTION; FOURIER TRANSFORMATION; INFRARED SPECTRA; IRRADIATION; METHYLENE BLUE; NANOSTRUCTURES; PARTICLES; PHOTOCATALYSIS; SOL-GEL PROCESS; SURFACES; SYNTHESIS; TITANIUM OXIDES; VISIBLE RADIATION; X-RAY PHOTOELECTRON SPECTROSCOPY
- Descriptors DEC
- AMINES; ANTI-INFECTIVE AGENTS; ANTIMICROBIAL AGENTS; AZINES; CATALYSIS; CHALCOGENIDES; CHLORIDES; CHLORINE COMPOUNDS; DRUGS; ELECTROMAGNETIC RADIATION; ELECTRON SPECTROSCOPY; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; INTEGRAL TRANSFORMATIONS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHENOTHIAZINES; PHOTOELECTRON SPECTROSCOPY; RADIATIONS; SORPTION; SPECTRA; SPECTROSCOPY; TITANIUM COMPOUNDS; TRANSFORMATIONS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.