Mar 6, 2020 · In this review, we describe several recent developments in non-metal-doped/codoped TiO 2 and TiO 2-based hybrid photocatalysts and their physicochemical properties, band gap features, factors to improve catalytic efficiency, photocatalytic mechanism, and catalytic applications.

Oct 30, 2020 · Metal-doped TiO 2 for photocatalytic hydrogen production has been systematically discussed in this review. There is a specific metal that contributes to efficient hydrogen production.

Jun 5, 2024 · Ho-TiO 2 achieved the highest photocatalytic activity under visible-light irradiation. Sub-bandgap states from the 4 f levels of the doped metal caused bandgap narrowing. Modification with rare-earth (RE) metals has emerged as an important approach for enhancing the properties of titanium dioxide.

Jul 1, 2013 · Here, we show that a molten-salt flux scheme can be used to synthesize large quantities of high-quality, single-crystalline TiO 2 nanowires with controllable dimensions. Furthermore, in situ dopant incorporation of various transition metals allows for the tuning of optical, electrical, and catalytic properties.

Jan 17, 2014 · This paper reviews preparation methods of doped-TiO2 with metallic and nonmetallic species, including various types of dopants and doping methods currently available.

Nov 1, 2008 · In this study, we synthesized Ag-doped TiO 2 nanoparticles through a solution combustion method and subjected them to various characterization techniques, including X-ray diffraction,...

Jan 22, 2021 · Various research works mainly based on its doping with different metallic and non-metallic elements confirmed the photocatalytic activity of TiO 2. TiO 2 exhibits relatively high reactivity and chemical stability under ultraviolet light (λ < 387 nm).

Doping of TiO 2 with various elements increases its photocatalytic activity due to the formation of new energy levels near the conduction band. Photocatalysis involving titanium dioxide is a heterogeneous process in which the surface of the catalyst plays an important role.

Dec 22, 2009 · Pt- and Cr-doped TiO 2, which had relatively high percentages of rutile in the particle phase, showed significantly enhanced visible-light photocatalytic activity for all three reaction classes.

Sep 10, 2019 · We introduced a facile, low-cost, and scalable doping method of TM ions (Cr, Co, Cu, Fe, Mn, etc.) into TiO 2 nanotubes (NTs), while maintaining their high-ordered tubular structures (with ∼120 nm outside diameter).