Enhanced solar absorption of gold plasmon assisted TiO2-based water splitting composite

Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties

“…3,[7][8][9][10][11][12] Over the years, metal oxides such as TiO 2 , ZnO, SnO 2 , Fe 2 O 3 , CoO, V 2 O 5 , WO 3 , etc., have been studied as the photoanodes for solar-driven PEC water splitting due to their high photoactivity and photostability. 4,8,[13][14][15][16][17][18][19] Noble metal nanocomposites, especially Ag-based, 20 as well as metal chalcogenides such as CuSe, CdS, MoS 2 , Ag 2 S, etc., have also been studied as promising visible light photocatalysts and electrocatalysts due to their suitable band gap (<2.5 eV) and excellent absorption of visible light. [21][22][23] Newly developed sophisticated materials such as: metal-organic frameworks (MOFs), covalentorganic frameworks (COFs), zeolite-imidazole frameworks (ZIFs), porous coordination polymers (PCPs) have shown high photocatalytic or electrocatalytic activity.…”

Recent Advances in the Design of Plasmonic Au/TiO2 Nanostructures for Enhanced Photocatalytic Water Splitting

“… Fabrication steps to produce dTiO sample and Au-dTiO sample: F1, a 6-inch Si water; F2, 200 nm of SiO 2 was deposited on Si; F3, 30 nm alumina was deposited on SiO 2 /Si; F4, TiO 2 deposited sample (dTiO); F5, 40-nm Au deposited on dTiO; F6, annealed sample (Au-dTiO). Reproduced from [ 71 ] with permission from Elsevier, 2018. …”

“… ( a ) SEM top view image of Au annealed for 2 h at 450 °C (the inset shows surface area ratio of Au (yellow) to TiO 2 (blue)); and ( c ) Au-dTiO annealed at 450 °C for 6 h. Reproduced from [ 71 ] with permission from Elsevier, 2018. …”

“… TEM cross sectional images of Au-dTiO annealed sample (annealed at 450 °C for 6 h): ( a ) continuous and uniform gold film; ( b ) thickness variation at specific locations; ( c ) discontinuity in the gold film; and ( d ) HRTEM image of the TiO 2 /Au interface. Reproduced from [ 71 ]. with permission from Elsevier, 2018.…”

“… ( a ) Optical absorption spectrum of dTiO and Au-dTiO samples; and ( b ) optical absorption spectrum of TiO-Sapp and Au-TiO-Sapp samples. Reproduced from [ 71 ]. with permission from Elsevier, 2018.…”