Effects of electrolyte NaCl on photocatalytic hydrogen evolution in the presence of electron donors over Pt/TiO2

Photocatalytic hydrogen generation in the presence of ethanolamines over Pt/ZnIn2S4 under visible light irradiation

“…Under stronger acidic condition (at pH 2.5), due to the presence of a large amount of Cl − (added by adjusting pH) and high stability for InCl n 3−n [29,31], preferential surface adsorption of Cl − would take place, leading to a negative zeta potential. The phenomenon is similar to the case of oxalate adsorption on TiO 2 under acidic condition [21]. Under neutral and basic conditions, the S H and M OH species would transform into M O − and S − species, respectively.…”

“…It is of more interest to combine photocatalytic hydrogen generation with destruction of organic pollutants. In previous works, we found that photocatalytic hydrogen production increased with simultaneous degradation of various pollutants (electron donors) [17][18][19][20][21]. Other groups have also investigated * Corresponding author.…”

“…Attenuated total reflectance infrared spectroscopy (ATR-IR) is an effective tool to investigate solid/liquid interfacial adsorption phenomena, and many related literatures have been published recently [18,21]. In order to understand the adsorption performance and reactivity of the pollutants on ZnIn 2 S 4 , ATR-IR technique has been used in this work.…”

CHAPTER 8. Hydrogen Production from Biomass Derivatives over Heterogeneous Photocatalysts

“…69,70 The influence of the electrolyte NaCl was also examined for hydrogen production from aqueous ethanol over Pt/TiO 2 , since producing hydrogen from natural seawater would be desirable from the viewpoint of practical application. 73 When the concentration of NaCl was lower than 0.1 mol L À1 , the hydrogen production rate increased with an increase in NaCl concentration. This is because Na 1 adsorbed on TiO 2 promoted the adsorption of ethanol.…”

Hydrogen production from water-glucose solution over NiO/La-NaTaO3 photocatalyst

“…Methanol and glucose are known as a potential donor in decreasing the level of recombination for having Gibbs energy lower than water splitting (G  = 228.64 kJ.mol -1 ). The success for glucose as a sacrificial reagent for rapidly increasing the rate for hole photo induction has been reported [12]. NiOx has been found a more effective cocatalyst and it is necessary to provide an active site in photocatalytic of hydrogen production [13].…”