Plasmonic Active “Hot Spots”‐Confined Photocatalytic CO₂ Reduction with High Selectivity for CH₄ Production (Adv. Mater. 14/2022)

Recent Trends in Plasmon‐Assisted Photocatalytic CO2 Reduction

“…Here, the high conversion rate is attributed mostly to the formation of a Z‐scheme mechanism, SPR effect and extended adsorption in the visible light region caused by the Ag nanoparticles as well as to the enhanced CO 2 ‐nanocomposite interaction associated with the presence of CeO 2 and Ag plasmons. Once again, the good reactants adsorption was depicted as a very important factor, as suggested also by Jiang et al [135] . The conversion rates towards CO and CH 4 reached a maximum of 75.5 μmol $${{{\rm { g}}}_{{\rm { cat}}}^{{\rm { -}}{\rm { 1}}}}$$ h −1 and 4 μmol $${{{\rm { g}}}_{{\rm { cat}}}^{{\rm { -}}{\rm { 1}}}}$$ h −1 respectively, in the presence 3 % Ag−CeO 2 −ZnO under simulated sunlight irradiation.…”

“…A distinct approach was followed by Jiang et al. which led to the development of Au/TiO 2 /W 18 O 49 sandwich‐like structures [135] . The reasoning for the remarkable photocatalytic reduction of CO 2 towards mostly CH 4 (selectivity 93.3 %) was correlated not only to the good light harvest and implicit the formation of “hot electrons” with extended lifetime, but also due to the Au−O−Ti and W−O−Ti active sites.…”

Progress and perspectives on 1D nanostructured catalysts applied in photo(electro)catalytic reduction of CO2

“…Jiang et al assembled W 18 O 49 NWs on Au/TiO 2 . 181 The Au NPs could not only induce LSPR to generate high-energy hot electrons, but also adsorb CO 2 , protons and intermediates to promote the conversion of CO 2 to CH 4 with a product yield of 35.55 µmol g −1 h −1 ; the product selectivity was 93.3%.…”

P25-induced polydopamine conformal assembly on Cu2O polyhedra for hydrophilic and stable photoelectrochemical performance

“…10,11 A TiO 2 coating is an excellent candidate, which allows photogenerated electrons to transfer through owing to its appropriate conduction band position. 12, 13 An atomic layer deposited TiO 2 coating can efficiently improve the stability of the p-n Cu 2 O photocathode in aqueous conditions reported by Gong et al 14 Furthermore, lowering the diffusion energy barrier of photogenerated carriers can be achieved by constructing a semiconductor heterojunction. The formed type-II or direct Z heterojunction by TiO 2 /Cu 2 O provides a strong driving force for charge separation.…”