Visible light active N-doped TiO2 prepared from different precursors: Origin of the visible light absorption and photoactivity

Surface heterojunction between (001) and (101) facets of ultrafine anatase TiO2 nanocrystals for highly efficient photoreduction CO2 to CH4

“…NTA is thermally unstable and transformed to a novel anatase TiO 2 with large BET surface areas and high concentration of single-electrontrapped oxygen vacancies (V o . ) during calcining, accompanied by collapse of tubular morphology [45][46][47]. F − is easily adsorbed in and outside surface of the nanotube, which help the (001) facets of TiO 2 exposed during structure reorganization.…”

Endowing single-electron-trapped oxygen vacancy self-modified titanium dioxide with visible-light photocatalytic activity by grafting Fe(III) nanocluster

“…Previously we prepared anatase TiO 2 with a large amount of intrinsic defects: single-electron-trapped oxygen vacancy (abridged as SETOV and denoted as V 0 • ) by heat-treating nanotubular titanic acid (H 2 Ti 2 O 4 (OH) 2 ; denoted as NTA) at elevated temperature [34][35][36][37][38][39][40][41]. As-obtained V 0 • self-modified TiO 2 (denoted as V 0 • -TiO 2 ) exhibits a certain degree of visible-light absorption, due to the formation of a sub-band of the SETOV within the band gap of TiO 2 [39,40] An impregnation method reported elsewhere was applied to graft Fe(III) ion onto the surface of V 0…”

“…As-obtained V 0 • self-modified TiO 2 (denoted as V 0 • -TiO 2 ) exhibits a certain degree of visible-light absorption, due to the formation of a sub-band of the SETOV within the band gap of TiO 2 [39,40] An impregnation method reported elsewhere was applied to graft Fe(III) ion onto the surface of V 0…”

Metal recovery based magnetite near-infrared photocatalyst with broadband spectrum utilization property

“…It is attributed to the effects resulted from the higher amount of oxygen vacancies (Fig. 5d) [39], as well as the added Er 3+ , Tm 3+ , and Yb 3+ ions, and the formed CaF 2 in ETY-FCZ. The photogenerated electrons can be trapped by the tervalent lanthanides (Er 3+ , Tm 3+ , and Yb 3+ ) to form divalent lanthanides [40][41][42].…”