Selective conversion of aqueous glucose to value-added sugar aldose on TiO2-based photocatalysts

We describe here a photocatalytic process for direct conversion of glucose to value-added chemicals and H2 in water under mild reaction conditions without additional acid or base

Ruifeng Chong; Jun Li; Yi Ma; Bao Zhang; Hongxian Han; Can Li

2014

Scholarcy highlights

  • Glucose is one of the main products of photosynthesis found in plants
  • We describe here a photocatalytic process for direct conversion of glucose to value-added chemicals and H2 in water under mild reaction conditions without additional acid or base
  • We have succeeded in photocatalytic conversion of aqueous glucose to value-added chemicals arabinose and erythrose with H2 as by-product using a TiO2-based photocatalyst under mild conditions
  • The total selectivity of arabinose and erythrose was more than 91% at 65% conversion of glucose on TiO2-R
  • Water plays the roles of oxidant precursor and solvent, and the reactive oxygen species derived from water determines the selectivity of products
  • We report glucose photoreforming for coproduction of H2 and arabinose with improved selectivity under neutral condition using carbon quantum dots modified TiO2 composites
  • The photocatalytic hydrogen generations from aqueous glucose solution with in-situ Au and Pd deposited TiO2 were about 203 and 362 times larger compared with those observed with pure TiO2

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