Novel Au/TiO2 photocatalysts for hydrogen production in alcohol–water mixtures based on hydrogen titanate nanotube precursors

Construction of direct Z‐scheme g‐C3N4/TiO2 nanorod composites for promoting photocatalytic activity

“…Furthermore, as observed in Figure , for pure TiO 2 and g‐C 3 N 4 /TiO 2 composite samples, the diffraction peaks appearing at 25.2°, 37.8°, 48.0°, 53.8°, and 55° can be readily assigned as the (101), (004), (200), (105), and (211) planes of anatase TiO 2. However, there was no typical pattern of g‐C 3 N 4 being observed in g‐C 3 N 4 /TiO 2 composites, which should be due to the low g‐C 3 N 4 content in the samples or high dispersion of C 3 N 4 on TiO 2. …”

Hydrogen evolution in the photocatalytic reaction between methane and water in the presence of CO2 on titanate and titania supported Rh and Au catalysts

“…The photocatalytic water splitting is a promising option to generate hydrogen if the usage of carbon containing materials needs to be avoided. This method had been widely investigated over the past decades, but, unfortunately, the stability or activity of all the semiconductor photocatalysts reported to date for direct water splitting is too low to justify industry uptake [9,10]. Therefore the current hydrogen production method is focused on the steam reforming of methane combined with water-gas shift reaction [11,12].…”

“…The strenuous development of TiO 2 nanomaterials has thriven our knowledge with a new class of titania-based nanostructure, the layered titanate materials [8,10,[32][33][34][35]. They are in the center of interest due to their extremely large ion-exchange capacity [8,32,[34][35][36][37][38][39].…”

“…In addition, it was shown with electron paramagnetic resonance that the water and carbonates have got important roles in the overall photocatalytic reduction of carbon dioxide using TiO 2 [69]. Water plays an also important role in the photocatalytic H 2 production from ethanol-water mixtures over Pt/TiO 2 and Au/TiO 2 photocatalysts [70] and in alcohol-water mixtures on Au doped hydrogen TNT [10].…”

Facile one-pot synthesis of nickel-incorporated titanium dioxide/graphene oxide composites: Enhancement of photodegradation under visible-irradiation

“…Pt loading has also been considered as a promising candidate for the visible-driven photocatalysis of gaseous formaldehyde and benzene decomposition [11,12]. Recently, Dosado et al published a study on incorporated Au on TiO 2 nanorods that increased the photocatalytic activity of hydrogen production reactions in alcohol-water mixtures [13]. Even though noble metal doped TiO 2 showed excellent photocatalytic activity, there was a barrier to commercialize them on large scale due to their high cost and scarcity.…”