Anatase-rutile-brookite: Structural and photocatalytic properties of TiO2 modified with different boron concentrations

Moreira, Ailton.J.; de Araújo, Kelvin C.; Marques, Gleison N.; Nobrega, Eryka T.D.; Santos, Hugo L.S.; Mascaro, Lucia H.; Onofre, Yina J.; Galeti, Helder V.A.; Gobato, Yara Galvão; Mastelaro, Valmor R.; Freschi, Gian P.G.; Godoy, Marcio P.F.; Pereira, Ernesto C.

doi:10.1016/j.materresbull.2024.112973

Materials Research Bulletin

2024

DOI: 10.1016/j.materresbull.2024.112973

|View full text |Cite

Anatase-rutile-brookite: Structural and photocatalytic properties of TiO2 modified with different boron concentrations

Ailton.J. Moreira,

Kelvin C. de Araújo,

Gleison N. Marques

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO₂ Nanocrystals as Sustainable Visible‐Light Catalysts

Assayehegn,

Solaiappan,

Gidey

et al. 2024

Global Challenges

View full text Add to dashboard Cite

Visible‐light active anatase/brookite/rutile (A/B/R) ternary N‐doped titania (N/TiO2) crystals are successfully prepared by a facile sol‐gel method using titanium butoxide and benign N‐dopant source, guanidinium chloride. Systematically varying the aging time (1, 4, 8, and 12 d), its influence on physicochemical properties of as‐obtained spherical heterojunction nanomaterials is studied. Detailed characterizations confirm that a substantial amount of anatase (88% to 50%) is transformed to rutile (2% to 38%) via intermediate brookite phase (9% to 25%) as the function of aging time; not only the A/B/R phase content of the samples is tuned by sol‐gel aging time of the precursors solution but also their optical‐response and methylene blue photocatalytic properties are profoundly dictated. Notably under visible‐light irradiation, the photostable rutile rich mesoporous A/B/R triphasic N/TiO2 (50% A, 12% B, 38% R) aged for 12 d demonstrates higher degradation activity (97%) with a faster degradation rate (0.033 min−1) than both lesser aged N/TiO2 and undoped titania. This enhancement is attributed to the synergistic effect of interstitial‐N‐doping and optimal A/B/R interfacial charge transfer that leads to higher light absorption, lower bandgap energy and well‐separated charge carriers. The current work provides a new perspective for designing highly active visible‐light heterostructure nanomaterials with controllable phase composition.

show abstract

In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO₂ Nanocrystals as Sustainable Visible‐Light Catalysts

Assayehegn,

Solaiappan,

Gidey

et al. 2024

Global Challenges

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Anatase-rutile-brookite: Structural and photocatalytic properties of TiO2 modified with different boron concentrations

Cited by 1 publication

References 33 publications

In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO₂ Nanocrystals as Sustainable Visible‐Light Catalysts

In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO₂ Nanocrystals as Sustainable Visible‐Light Catalysts

Contact Info

Product

Resources

About

Anatase-rutile-brookite: Structural and photocatalytic properties of TiO2 modified with different boron concentrations

Cited by 1 publication

References 33 publications

In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO2 Nanocrystals as Sustainable Visible‐Light Catalysts

In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO2 Nanocrystals as Sustainable Visible‐Light Catalysts

Contact Info

Product

Resources

About

In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO₂ Nanocrystals as Sustainable Visible‐Light Catalysts

In Situ Driven Formation of Anatase/Brookite/Rutile Heterojunction N/TiO₂ Nanocrystals as Sustainable Visible‐Light Catalysts