Functionalization of anatase nanoparticles with Glutaric acid and their photochemical and photocatalytic properties under visible light

Tetracycline Removal through the Synergy of Catalysis and Photocatalysis by Novel NaYF4:Yb,Tm@TiO2-Acetylacetone Hybrid Core-Shell Structures

“…However, even more intense absorption within the visible spectrum of NaYF4:Yb,Tm@TiO2-Acac 300 can be additionally attributed to the extrinsic oxygen vacancies generated in the anatase shell layer through oxidation decomposition of Acac [18,19]. The same feature was recently reported for another charge transfer complex, namely, TiO2-glutaric acid, after calcination at 270 °C [20]. The characteristic absorption feature of the neat NaYF4:Yb,Tm is preserved in core-shell structures, since a small peak at ∼690 nm, attributed to 3 H6→ 3 F2,3 Tm 3+ transitions, is still visible.…”

“…It Is relevant to note that tetracycline is one of the most widely used antibiotics in humans and in domestic animals, so developing effective sunlight-driven photocatalysts for its removal from wastewater represents a great challenge. To address this issue, besides TiO 2 -Acac and TiO 2 -glutaric acid charge transfer complexes [18][19][20], Co-TiO 2 mesoporous structures [21], CdS/TiO 2 , Cu 2 O/TiO 2 , and MoS 2 /TiO 2 composites [22][23][24], magnetic graphene oxide loaded TiO 2 :Ce [25], and TiO 2 /Fe 2 O 3 heterojunction [26] were tested up to now, but there is no report about photocatalytic performance of the UC@TiO 2 -based core-shell structures.…”