Photocatalytic H2 production from glycerol aqueous solutions over fluorinated Pt-TiO2 with high {001} facet exposure

Photocatalytic hydrogen evolution by co-catalyst-free TiO2/C bulk heterostructures synthesized under mild conditions

“…At higher concentration the lack of improvement can be explained assuming that the excess of photocatalyst does not participate in the reaction probably due to both an increased turbidity of the suspension and to the scattering effects of catalyst particles. 75 The recyclability is one of the most important aspects to be considered in the formulation of a new photocatalytic material. 76 To check the recyclability of N3 sample, the H 2 production tests were repeated up to 5 cycles (Fig.…”

Photocatalytic Hydrogen Production from Glycerol Aqueous Solution Using Cu-Doped ZnO under Visible Light Irradiation

“…The worsening of the photocatalytic activity beyond the optimal value of the initial glycerol concentration can be attributed to the blockage of the adsorption of H 3 O+ on the active site's surface [32]. Moreover, the existence of a maximum value for hydrogen production as a function of initial glycerol concentration could be also attributed to the action of glycerol as a quenching agent for ions and radicals generated during the irradiation [18].…”

“…For this purpose, different organic compounds such as methanol [13], ethanol [14], sugar [13], glycerol [15], and lactic acid [16] have been used. In particular, the use of glycerol as a sacrificial agent for H 2 production via the photoreforming process has aroused great interest [17,18]. The reason for this is the huge production of glycerol, the content of which in by-product streams from the biodiesel industry is about 10 wt %, while glycerol itself still has limited demand in the market [19].…”

“…The reason for this is the huge production of glycerol, the content of which in by-product streams from the biodiesel industry is about 10 wt %, while glycerol itself still has limited demand in the market [19]. In the literature, there are several papers on the efficiency of photocatalysis for hydrogen production starting from a glycerol aqueous solution [18,20,21]. In particular, different photocatalysts have been tested and the most investigated ones were TiO 2 -based materials [12,22].…”

Compositing Two-Dimensional Materials with TiO2 for Photocatalysis

“…With the massive consumption of fossil energy and serious environmental pollution problems, there is an urgent need for clean energy and more efficient ways to decompose pollutants. Photocatalysis is an advanced technology that uses photon energy to convert chemical reactions occurring under harsh conditions into reactions under mild conditions by appropriate photocatalyst, and thus emerged as recognizable fields such as hydrogen generation [1][2][3][4], sewage treatment [5][6][7], harmful gas removal [8,9], organic pollutant degradation [10][11][12][13] and carbon dioxide reduction [14][15][16].…”