Highly Promoted Photocatalytic Hydrogen Generation by Multiple Electron Transfer Pathways

Shearing bridge bonds in carbon nitride vesicles with enhanced hot carrier utilization for photocatalytic hydrogen production

“…5a, as expected, CN-2 shows a higher photocurrent density than CN-0, resulting from its abundant carrier transfer channels. 46 As shown in Fig. 5b, in contrast to CN-0, the decreased slope of the EIS plot of CN-2 demonstrates lower electrical resistance.…”

Morphology-Governed Performance of Multi-Dimensional Photocatalysts for Hydrogen Generation

“…Moreover, it has been concluded that one platinum deposit on the surface of large aggregates of titania (aggregation caused by thermal treatment) is enough to cause efficient hydrogen evolution under UV irradiation (CH3OH as a hole scavenger), thanks to interparticle electron transfer (IPCT) between even the same kinds of titania NPs (anataseanatase or rutile-rutile) in one aggregate, as shown in Figure 1. The importance of platinum localization on different parts of a two semiconductor photocatalyst has also been investigated for polypyrrole (PPy)-titania nanocomposites [45]. It has been found that platinum should be deposited on both semiconductors The importance of platinum localization on different parts of a two semiconductor photocatalyst has also been investigated for polypyrrole (PPy)-titania nanocomposites [45].…”

“…The importance of platinum localization on different parts of a two semiconductor photocatalyst has also been investigated for polypyrrole (PPy)-titania nanocomposites [45]. It has been found that platinum should be deposited on both semiconductors The importance of platinum localization on different parts of a two semiconductor photocatalyst has also been investigated for polypyrrole (PPy)-titania nanocomposites [45]. It has been found that platinum should be deposited on both semiconductors simultaneously, resulting in high hydrogen evolution rate (CH 3 OH as a hole scavenger) (i.e., 125.1 and 3.2 mmol g −1 h −1 under UV and vis (>420 nm) irradiation, respectively), which is much higher than that when platinum is only deposited on one component (ca.…”

Superior photocatalytic activity of polypyrrole nanostructures prepared by radiolysis in water and dichloromethane

“…Among organic photocatalysts, polypyrrole (PPy) which is considered as one of the most promising conjugated polymers in the field of photocatalysis, can be synthesized by chemical route (Cui et al, 2014), by the way of water radiolysis (Bahry et al, 2021b;Cui et al, 2014) and by using templates such as hexagonal mesophases (Yuan et al, 2019). Note that among the latter, PPy nanostructures synthesized in hexagonal mesophases displayed interesting photocatalytic activity for water treatment under visible light and for hydrogen generation (Yuan et al, 2021(Yuan et al, , 2020. These previous studies highlighted the fact that PPy nanostructures present different photocatalytic activities depending not only on the synthetic route but also on the solvent used during synthesis.…”