CeO2 nanoparticles dispersed on CoAl-LDH hexagonal nanosheets as 0D/2D binary composite for enhanced photocatalytic hydrogen evolution

Light-to-Hydrogen Improvement Based on Three-Factored Au@CeO2/Gr Hierarchical Photocatalysts

“…Mostly, no hydrogen gas is photocatalytically generated over the free-standing Gr sample, while the CeO 2 /Gr nanocomposites exhibit a much higher HER achievement with respect to their counterparts. The superiority of three-factored Au@CeO 2 /Gr 2.0 HNSs is comparable to the currently available CeO 2 -based, Gr-based, and Au-based HER photocatalysts (Figure c). ,− Our findings indicate the success of these advanced photocatalysts under visible-light irradiation. The effect of the incident wavelengths over the catalytic performance of the best ternary Au@CeO 2 /Gr 2.0 HNSs entity is also considered through the AQY efficiency, calculated from the relative HER activity.…”

Recent developments in layered double hydroxide structures with their role in promoting photocatalytic hydrogen production: A comprehensive review

“…On the other hand, for the first time, ceria (CeO 2 ) was coupled with CoAl LDH by Guo et al via the self-assembly method. 173 maximize the solar absorption capability, thereby boosting their photocatalytic hydrogen performance rate up to 6157 μmol g À1 h À1 .…”

“…In view of the charge separation and recombination, coupling two or more semiconductors was denoted as the most effective way to maximize the charge separation and hinder the recombination of the photocarriers. 83,249 Previous and current literature has elucidated on the photocatalytic enhancement of the LDH-based photocatalyst in driving the hydrogen production after hybridizing with other semiconductors and forming a heterojunction of type I, 250 type II, 50,54,172,173,185,251 Z-Scheme, 134,252,253 S-Scheme, 114,254 and p-n junction. 77,112,115 Extensive research has been conducted on the construction of LDH-based type II heterojunction compared to other heterojunction types.…”

Self-assembled transition metal chalcogenides@CoAl-LDH 2D/2D heterostructures with enhanced photoactivity for hydrogen evolution

“…18–20 LDH nanosheets have been widely studied due to their tunable band gap, low cost, relative ease of scale-up, and suitable band structures for driving water splitting. 21–24 Among that, CoAl-LDH with a skeleton composed of uniformly distributed Co 2+ and Al 3+ is a promising photocatalyst due to its abundant Co active sites, which has been proven to be effective for a broad spectrum of applications, such as photodegradation, 25 H 2 production, 26,27 and CO 2 reduction. 28…”