02551nas a2200253   4500008004100000022001400041245017900055210006900234260000800303300001100311490000800322520161300330653001801943653001301961653001901974653002201993653002802015100002102043700002902064700001502093700002802108700003002136856013102166       2024                        eng d  a0021-951700aOxidative and selective C-C cleavage of glycerol to glycolaldehyde with atom-like Cu on Cu-TiO2: photocatalytic water reduction with concurrent glycerol oxidation in sunlight0 aOxidative and selective CC cleavage of glycerol to glycolaldehyd  cSEP  a1156440 v4373 a<p>
	Concurrent consumption of electrons and holes for the conversion of a biomass component to value added products represents a highly efficient and sustainable approach towards utilizing renewable energy, but difficult to achieve. The integration of hydrogen production with glycerol oxidation presents a novel and sustainable approach towards achieving a circular economy. In the current study, integration of atom-like Cu-clusters onto TiO2 substrate has been achieved using a facile photo-deposition technique (TC-PDO). Also, novel synthetic approaches have been employed to augment the surface coverage of Cu on TiO2 with atom-like clusters of Cu, either by borohydride treatment on TiO2 followed by Cu-deposition (TC-200) or oxygen-vacancy creation by UV illumination followed by Cu-deposition (TC-PDO). Increased dispersion and enhanced electronic integration of Cu with TiO2 lead to a corresponding increase in the efficiency of photocatalytic hydrogen evolution (13.8 mmol/h.g for TC-PDO at pH 9). Several atom-like Cu integrated with each TiO2 particle acts as photocatalytic reactor, and the same enhances electron-hole separation as well as activity. Sustainable aspect was also studied for TC-PDO up to 25 h at pH 9. Concurrently, glycerol oxidation displays the highest selectivity to C2 product (glycolaldehyde with 70 %) with a C-C cleavage. The investigation of this process holds significant potential for the extensive and simultaneous exploitation of electrons and holes in order to achieve water splitting and glycerol oxidation towards selective value-added products formation.</p>
10aC -C Cleavage10aGlycerol10ananotechnology10aPhoto -deposition10asolar energy conversion1 aBajpai, Himanshu1 aNivedhitha, Thazhath, R.1 aDais, Elsa1 aKanungo, Subhashree, S.1 aGopinath, Chinnakonda, S.  uhttps://library.ncl.res.in/content/oxidative-and-selective-c-c-cleavage-glycerol-glycolaldehyde-atom-cu-cu-tio2-photocatalytic