Visible light sensitization effect of polyaminobenzoate adsorbed on TiO2 nanocrystal surface
Source abstract
Abstract
Abstract Poly- o -aminobenzoate (POA) was prepared by oxidizing o -aminobenzoic acid with (NH 4 ) 2 S 2 O 8 in an acidic solution. POA was adsorbed on TiO 2 nanocrystal surface to obtain a POA–TiO 2 nanocomposite. The polymerization reaction, structure, adsorption reaction on TiO 2 surface, and visible light sensitization effect of the polymer adsorbed on TiO 2 surface were studied by FT-IR and UV–visible spectra, cyclic voltammetry, and measurements of visible light photoelectrochemical and photocatalytic activities. Three kinds of POA with different long conjugate structures can be formed. These polymers have large absorbance in wide visible light region. POA molecules can be adsorbed on TiO 2 surface by anchoring their carboxylate groups to the TiO 2 surface with a multi-bridging chelating mode, which causes formation of the POA–TiO 2 nanocomposite with a high stability. POA adsorbed on the TiO 2 nanocrystal showed high visible light sensitization effect in the photocatalytic reaction.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Conducting polymers and applications · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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