期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 19, 期 5, 页码 3688-3693出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cp06864b
关键词
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资金
- Advanced Low Carbon Technology Research and Development Program (ALCA)
- Core Research for Evolutional Science and Technology (CREST) program of the Japan Science and Technology Agency (JST)
Photo-assisted phosphorylation of an anatase TiO2 catalyst was examined to improve its catalytic performance for the direct production of 5-(hydroxymethyl) furfural (HMF), a versatile chemical platform, from glucose. In phosphorylation based on simple esterification between phosphoric acid and surface OH groups on anatase TiO2 with water-tolerant Lewis acid sites, the density of phosphates immobilized on TiO2 is limited to 2 phosphates nm(-2), which limits selective HMF production. Phosphorylation of the TiO2 surface under fluorescent light irradiation increases the surface phosphate density to 50%, which is higher than the conventional limit, thus preventing the adsorption of hydrophilic glucose molecules on TiO2 and resulting in a more selective HMF production over photoassist-phosphorylated TiO2.
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