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

ABSTRACT: 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 dic

SUBMITTER: Assayehegn E 

PROVIDER: S-EPMC11469765 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature