Synthesis of three-dimensional WO₃ octahedra: characterization, optical and efficient photocatalytic properties

Abstract

First time synthesized novel WO3 octahedra exhibited photocatalytic performance of about 5.33 times than that of bulk which may be attributed to large surface area and highly reactive facet {120}.

A novel Z-scheme WO3/CdWO4 photocatalyst with enhanced visible-light photocatalytic activity for the degradation of organic pollutants

“…The optical band gaps, E g , of all the three samples were calculated by the well-known equation used in ref. 24. The band gaps of CdWO 4 , WO 3 and WO 3 /CdWO 4 photocatalyst were estimated as 3.30, 2.77 and 2.97 eV respectively as can be seen from Fig.…”

Preparation of Orthorhombic WO3 Thin Films and Their Crystal Quality-Dependent Dye Photodegradation Ability

“…The e − can participate in organic pollutant degradation reactions. The possible formations of the superoxide anion, hydroperoxyl, and hydrogen peroxide (H 2 O 2 ) species in the organic dye solution are advantageous for further degrading the MB dyes [21]. However, it has been shown that the position of the conduction band of WO 3 (+0.50 V vs. NHE) was below the standard redox potential for the formation of superoxide anion (−0.33 V vs. NHE) and hydroperoxyl (−0.046 V vs. NHE) [22].…”

Boosting the performance of visible light‐driven WO 3 /g‐C 3 N 4 anchored with BiVO 4 nanoparticles for photocatalytic hydrogen evolution

“…Such variation may arise because of expansion of new doping levels in catalyst's lattice that could facilitate the efficient migration and transfer of an electron from VB to CB. The extended range of visible light absorption of prepared nanocomposite results in the formation of more charge carriers and hence enhanced photocatalytic activity for hydrogen production . The formation of the charge carriers on photocatalyst's surface because of variation of E g value has advantageous to enhanced photocatalytic performance.…”