Efficient SiO2/WO3–TiO2@rGO nanocomposite photocatalyst for visible-light degradation of colored pollutant in water

Keshavarz, Iman; Ashjari, Mohsen

doi:10.1007/s10854-021-06523-z

Cited by 4 publications

(2 citation statements)

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“…20,112−114 Graphene oxide-based SiO 2 /WO 3 −TiO 2 /r-GO and BiOBr/ Bi 2 S 3 /TiO 2 /GO nanocomposites produce synergistic effects between semiconductors and graphene in visible light active degradation of colored pollutants in water. 115,116 Introduction of C 60 particles in Pt/TiO 2 catalyst was also reported to increase electron transfer by creating a bridge and as a result, reduce charge accumulation at the interface. 117 In another case, photocatalytic activity in coupled semiconductors can be improved by a suitable combination of semiconductor materials.…”

Section: Tio 2 Composite Materials Catalystsmentioning

confidence: 99%

“…This additional heat will enhance the migration of the electron–hole in the composite and thus increase the separation of the charge, exhibiting greater photocatalytic CO 2 reduction activity than only a-TiO 2 . Graphene oxide (GO) and reduced graphene oxide (r-GO) composite materials with TiO 2 create a charge transfer channel toward GO and r-GO, which reduces surface recombination. ,− Graphene oxide-based SiO 2 /WO 3 –TiO 2 /r-GO and BiOBr/Bi 2 S 3 /TiO 2 /GO nanocomposites produce synergistic effects between semiconductors and graphene in visible light active degradation of colored pollutants in water. , Introduction of C 60 particles in Pt/TiO 2 catalyst was also reported to increase electron transfer by creating a bridge and as a result, reduce charge accumulation at the interface …”

Section: Tio2 Composite Materials Catalystsmentioning

confidence: 99%

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Mechanistic Understanding in Manipulating Energetics of TiO₂ for Photocatalysis

2023

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Titanium dioxide (TiO2) is a wide bandgap semiconductor that has a wide range of applications including wastewater treatment, photocatalysis, solar cells, and sensors owing to its excellent electronic and optical properties. However, the wide bandgap of TiO2 (∼3.2 eV) along with the recombination processes of the photoexcited charge carriers reduce its interfacial charge transport properties and respective activities. Energetics, optical response, and corresponding photophysics of excited charge carriers can be altered through doping and codoping of TiO2 and composite formulation. Therefore, it is very crucial to understand the structure–property and property-application relationships of doped, co-doped, and composite TiO2 to maximize the efficiency and extend the fundamental understanding for their applications in different fields. In this Perspective, we summarize the ongoing research on the advancement of undoped, doped, co-doped, and composite TiO2 including their structure and morphology, energetics, and corresponding photophysics relative to their applications in photocatalysis, wastewater treatment, and water-splitting reactions. We then propose our perspectives on the future potential of energetic manipulation of photocatalytic TiO2 to develop advanced and highly efficacious catalytic materials.

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Section: Tio 2 Composite Materials Catalystsmentioning

confidence: 99%