Visible light photocatalytic activity enhancement for water purification in Cu(II)-grafted WO3 thin films grown by photoreaction of nanoparticles

Rapid formation of black titania photoanodes: pulsed laser-induced oxygen release and enhanced solar water splitting efficiency

“…Larger laser-induced crystallites should grow nearer to the surface than the interface, as reported for typical laserirradiated oxide thin lms. 18,20,28 The reduction of the peak intensity indicates that there was no sufficiently coherent periodic structure for stoichiometric TiO 2 near the irradiated surface. The rutile TiO 2 peaks also appeared due to the laser irradiation in both air and under vacuum.…”

Fabrication and Characterization of Highly Efficient As-Synthesized WO3/Graphitic-C3N4 Nanocomposite for Photocatalytic Degradation of Organic Compounds

“…A polymer photocatalyst bandgap is about 2.7 eV, allowing visible light to absorb up to 460 nm. Nevertheless, g-C 3 N 4 can absorb visible light effectively since graphitic C 3 N 4 has an adequate conduction band under illumination conditions that is able to be more harmful than protons formed by hydrogen [ 12 , 13 ]. Tungsten oxide (WO 3 ) is considered a promising material [ 13 , 14 ].…”

“…Nevertheless, g-C 3 N 4 can absorb visible light effectively since graphitic C 3 N 4 has an adequate conduction band under illumination conditions that is able to be more harmful than protons formed by hydrogen [ 12 , 13 ]. Tungsten oxide (WO 3 ) is considered a promising material [ 13 , 14 ]. It has been reported that synthesis of WO 3 /g-C 3 N 4 composite organic compounds shapes a heterostructural composite photocatalyst [ 15 , 16 ],provided that the electron donor is an aqueous solution for triethanolamine.…”

WO3 nanosponge photoanodes with high applied bias photon-to-current efficiency for solar hydrogen and peroxydisulfate production

“…Solar hydrogen production has great potential as a sustainable green energy source. [1][2][3][4][5][6] In particular, the use of semiconductor photoelectrodes for solar water splitting has been studied extensively, [7][8][9][10][11] because photoelectrochemical (PEC) systems have the following major advantages for water splitting: (1) easing the energy level restrictions in semiconductor photoelectrodes by using an external bias voltage; and (2) allowing charge separation and straightforward product collection at separate reaction sites for oxidation (anode) and reduction (cathode). There have been numerous reports on water splitting in PEC systems, [12][13][14][15][16][17][18][19] and TiO 2 and WO 3 photoelectrodes have been widely used because of their high chemical stability.…”