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

Solar Hydrogen Generation from Lignocellulose

“…[11a] Other cocatalysts (Rh, [13] Ru, [13b,14] Pd, [15] Au) [13b,15b,16] showed enhanced activity,with AuPd/TiO 2 reaching 8.8 mmol H 2 g cat À1 h À1 and 17.5 %EQE. [17] Non-precious co-catalysts (Ni, [15b,18] Fe, [19] Cu) [13a] improved activity [15a] and allowed quantitative H 2 yield.…”

Photocatalytic Solar Light H2 Production by Aqueous Glucose Reforming

“…Biomass conversion is less energy demanding than water splitting. The use of glucose, glycerol, lignin, etc., as sacrificial agents, can reduce the electron/hole recombination rate and favour selectively the synthesis of high value‐added products , . There are still only a relative small number of materials that can efficiently photoreform biomass, and works dedicated to improving the efficiency of photocatalysts, especially under natural solar light irradiation, are useful.…”

Photocatalytic conversion of glucose in aqueous suspensions of heteropolyacid–TiO2 composites

“…This nding indicate that PW 12 was able to explicate its acid function (see the higher formation of fructose) reducing the oxidizing ability of TiO 2 (see the disappearance of arabinose and erythrose and the formation of gluconic acid). Indeed, when TiO 2 was used alone, according to Chong et al 24 the most favoured reactions were due to the a scission (C 1 -C 2 cleavage) giving rise to the formation of arabinose, erythrose and glyceraldehyde (this last observed only in traces). On the other hand, the oxidation of Table 2 Photoreactivity assessment of bare TiO 2 powders: glucose conversion, X, selectivity to the identified reaction products, S, and carbon mass balance, B, after 360 minutes of irradiation glucose to gluconic acid (as rst step) and to glucaric acid (as second step) were observed only during the runs carried out by using PW 12 containing composite photocatalysts.…”