Radical detection and mechanism of WO3/CeO2 nanocomposite as a visible active photocatalyst

Fukumura, Takuya; Akane, Sachiko; Ekambaram, S.

doi:10.1007/s11144-017-1182-2

Cited by 5 publications

(3 citation statements)

References 38 publications

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“…. Since then, wide attention have received photocatalysts based on ZnO and other inorganic semiconductors either in pristine form (TiO 2 ,,, Sb 2 O 3, WO 3 , CdS, CdTe) or as heterojunctions (WO 3 /CeO 2 , PdO x /WO 3 , N‐ and S‐doped TiO 2 , Au/BiVO 4 , Au‐supported WO 3 /BiVO 4 , and Au/TiO 2 ,). Close to these systems are photocatalysts based on carbon materials, like graphitic carbon nitrides (g‐C 3 N 4 ),, CdS/graphene oxide or Cd 3 (C 3 N 3 S 3 ) 2 coordination polymer/graphene oxide rGO .…”

Section: Methodsmentioning

confidence: 99%

“…[17,18] First attempts to apply this phenomenon in directed photochemical synthesis of H 2 O 2 can be traced back till as far as 1953 (T. R. Rubin et al). [19] Since then, wide attention have received photocatalysts based on ZnO [20] and other inorganic semiconductors either in pristine form (TiO 2 , [18,21,22] Sb 2 O 3,[23] WO 3 , [24] CdS, [25] CdTe [20] ) or as heterojunctions (WO 3 / CeO 2 , [24] PdO x /WO 3 , [26] N-and S-doped TiO 2 , [27] Au/BiVO 4 , [28] Ausupported WO 3 /BiVO 4 , [29] and Au/TiO 2 [30,31] ). Close to these systems are photocatalysts based on carbon materials, like graphitic carbon nitrides (g-C 3 N 4 ), [32,33] CdS/graphene oxide [25] or Cd 3 (C 3 N 3 S 3 ) 2 coordination polymer/graphene oxide rGO.…”

mentioning

confidence: 99%

“…[23] WO 3 , [24] CdS, [25] CdTe [20] ) or as heterojunctions (WO 3 / CeO 2 , [24] PdO x /WO 3 , [26] N-and S-doped TiO 2 , [27] Au/BiVO 4 , [28] Ausupported WO 3 /BiVO 4 , [29] and Au/TiO 2 [30,31] ). Close to these systems are photocatalysts based on carbon materials, like graphitic carbon nitrides (g-C 3 N 4 ), [32,33] CdS/graphene oxide [25] or Cd 3 (C 3 N 3 S 3 ) 2 coordination polymer/graphene oxide rGO.…”

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confidence: 99%

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Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

et al. 2018

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Electroactive and conductive polymers based on transition metal complexes with salen‐type ligands are of interest as potential materials for energy storage and solar energy conversion. The easily tunable structure of monomers allows to modify polymer properties by changing either the central metal atom or the ligand substituents. Herein we report the photoelectrocatalytic activity of [MII(L)]n complexes, where M is Ni, Cu or Pd, and L is a tetradentate N,N,O,O salen‐type ligand, in the reduction of molecular oxygen to hydrogen peroxide in water solutions on polymer‐coated ITO electrodes. The photocathodic current at 0 V vs. Ag/AgCl is pH‐dependent, reaching maximum at pH 1 and dropping almost to zero at pH 12. Hydrogen peroxide production is almost quantitative (97 % efficiency measured in 1‐compartment cell). Maximal photocurrent and H2O2 concentrations achieved comprise 23 μA/cm2 and 1.3×10−3 M respectively.

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Section: Methodsmentioning

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confidence: 99%

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Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

et al. 2018

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Photocatalysts for Reduction of Molecular Oxygen to Hydrogen Peroxide

Lukyanov

Konev

2021

Springer Series in Chemical Physics

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Hydrothermal fabrication and characterization of novel CeO2/PbWO4 nanocomposite for enhanced visible-light photocatalytic performance

Selvi¹,

Rajendran

Jayamani³

2021

Appl Water Sci

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In this revision, a series of novel visible-light-driven (VLD) CeO2/PbWO4 nanocomposites (NCs) were effectively fabricated by facile hydrothermal preparation way. The UV–Vis absorption spectra exposed that CeO2 NPs prolonged the adsorption edge of the CeO2/PbWO4 composite to the extensive visible region, which allied to decreases of the bandgap. As-prepared CeO2/PbWO4 NCs revealed superior photocatalytic action under visible-light and could degrade the Methylene Blue (MB) dye solution in 140 min. The photodegradation efficacy of CeO2/PbWO4 NCs was improved catalytic activity, which is around 1.45 and 2.7 times that of CeO2 and PbWO4 nanoparticles (NPs) individually. Besides, the CeO2/PbWO4 catalysts display notable stability and reusability performance in four succeeding cycles. The development in the photocatalytic enactment of combined CeO2/PbWO4 nanocomposite could be recognized not only to the sturdy visible-light absorption responses and separating the photoexcited electron–hole pairs. Also, the plausibly systematic illumination of charge transference and exploitation of reactive species for superior photocatalytic action in visible-light have been discussed. It is projected that the CeO2/PbWO4 NCs could be used as effective photocatalysts for promising applications for environmental wastewater refinement.

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Radical detection and mechanism of WO3/CeO2 nanocomposite as a visible active photocatalyst

Cited by 5 publications

References 38 publications

Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

Polymeric Metal Salen‐Type Complexes as Catalysts for Photoelectrocatalytic Hydrogen Peroxide Production

Photocatalysts for Reduction of Molecular Oxygen to Hydrogen Peroxide

Hydrothermal fabrication and characterization of novel CeO2/PbWO4 nanocomposite for enhanced visible-light photocatalytic performance

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