Preparation of vertically aligned WO3 nanoplate array films based on peroxotungstate reduction reaction and their excellent photoelectrocatalytic performance

Efficient Degradation of Refractory Organics Using Sulfate Radicals Generated Directly from WO3 Photoelectrode and the Catalytic Reaction of Sulfate

“…The cross-sectional SEM images in Figure 1a show that the WO 3 films were perpendicular to the substrate and tightly adhered to the FTO substrate and the thickness of the WO 3 films remained almost the same at ∼850 nm. Those results are in agreement with the reported [41]. Figure 1b shows the X-ray diffractometry (XRD) patterns of WO 3 nanoplate array films, where (020), (002), and (200) peaks were observed.…”

“…The WO 3 photoanodes used in this work were prepared using a method reported elsewhere [41]. In a typical process, the SnO 2 :F-coated glass slides (FTO) of 3 × 3 cm was pretreated by washing it under ultrasonication with acetone and deionized water for 30 min.…”

Photoelectrochemical Performance for Water Oxidation Improved by Molecular Nickel Porphyrin‐Integrated WO3/TiO2 Photoanode

“…[3] WO 3 ,akind of n-type semiconductor with ab and-gap energy of 2.6-2.8 eV,h as been considered as an alternative owing to its capability of capturing approximately 12 %o ft he solar spectrum (visible region up to 500 nm). [4] Sincet he first reported WO 3 -based photoanode, ag reat deal of effort has been devoted to photo-assistedw ater electrolysis by nano-structured WO 3 thin films. [4] Sincet he first reported WO 3 -based photoanode, ag reat deal of effort has been devoted to photo-assistedw ater electrolysis by nano-structured WO 3 thin films.…”

“…[3] Under light excitation, electron-hole pairs are generatedi nW O 3 ,w hose valence band edge provides the approriate potentialf or water oxidation. [3][4][5] However,t he band gap of WO 3 still prevents its absorption of as ignificant fraction of the solars pectrum, and poor charge-separation efficiency resultsi nl imits for the performance of WO 3 -based PECs for water splitting. [3][4][5] However,t he band gap of WO 3 still prevents its absorption of as ignificant fraction of the solars pectrum, and poor charge-separation efficiency resultsi nl imits for the performance of WO 3 -based PECs for water splitting.…”

“…[3] Under light excitation, electron-hole pairs are generatedi nW O 3 ,w hose valence band edge provides the approriate potentialf or water oxidation. [4] Sincet he first reported WO 3 -based photoanode, ag reat deal of effort has been devoted to photo-assistedw ater electrolysis by nano-structured WO 3 thin films. [3][4][5] However,t he band gap of WO 3 still prevents its absorption of as ignificant fraction of the solars pectrum, and poor charge-separation efficiency resultsi nl imits for the performance of WO 3 -based PECs for water splitting.…”