Origin of the Visible Light Absorption of Boron/Nitrogen Co-doped Anatase TiO2

2013 ◽  
Vol 117 (50) ◽  
pp. 26454-26459 ◽  
Author(s):  
Chenghua Sun ◽  
Debra J. Searles
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Anatase Tio2 ◽  
Visible Light Absorption ◽  
Co Doped ◽  
Boron Nitrogen

Visible light absorption of (Fe, C/N) co-doped NaTaO${}_{3}$: DFT+ U *

2017 ◽  
Vol 26 (8) ◽  
pp. 087102 ◽  
Author(s):  
Peng-Li Tian ◽  
Zhen-Yi Jiang ◽  
Xiao-Dong Zhang ◽  
Bo Zhou ◽  
Ya-Ru Dong ◽  
...  
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Visible Light Absorption ◽  
Co Doped

The Photocatalytic Properties of Fe3+ and N Co-Doped TiO2 Micro/Nanofiber Film for Dye Waste Water Decomposition

2011 ◽  
Vol 356-360 ◽  
pp. 853-856 ◽  
Author(s):  
Qiao Zhen Yu ◽  
Xiang Jun Jin ◽  
Shao Yang Li ◽  
Lei Wang ◽  
Kun Long Liang
Keyword(s):  
Waste Water ◽  
Visible Light ◽  
Light Absorption ◽  
Oxygen Demand ◽  
Photocatalytic Efficiency ◽  
Energy Dispersion Spectroscopy ◽  
Visible Light Absorption ◽  
X Ray ◽  
Nano Fiber ◽  
Co Doped

To obtain a TiO2photocatalyst with high photocatalytic efficiency under visible irradiation and good reusability, the Fe3+and N co-doped TiO2micro/nano fiber films were fabricated by electrospinning and calcinations. The morphologies and structures of the resulting samples were analyzed by scanning electron microscopy (SEM), x-ray diffraction and x-ray energy dispersion spectroscopy (EDS). The absorbance and chemical oxygen demand (COD) were characterized respectively by UV–visible spectrophotometer and COD Rapid Tester. The results show that the Fe3+and N co-doped TiO2micro/nano fiber had a multi-porous structure with an average diameter of about 45 to 506 nm. The crystalinity degrees, visible light absorption of these films were affected by the dosage of Fe3+and N co-doping (DFN). Moreover, these films exhibited high photocatalytic activity for the degradation of dye waste water under sunlight and it was related to DFN. As DFN was 0.5 %, it has highest crystalinity degree, largest visible light absorption and highest photocatalytic efficiency on dye waste water. The decolor rate of the dye waste water was as high as 67.6 % and its COD decreased from 2800±200 to 236.40 ± 15.61, when the photocatalytic time was only 3 h.

Phosphorus- and fluorine-co-doped carbon nitride: modulated visible light absorption, charge carrier kinetics and boosted photocatalytic hydrogen evolution

2021 ◽  
Author(s):  
Pinnan Li ◽  
Mingya Wang ◽  
Shushu Huang ◽  
Yiguo Su
Keyword(s):  
Charge Carrier ◽  
Visible Light ◽  
Band Gap ◽  
Light Absorption ◽  
Carbon Nitride ◽  
Light Response ◽  
Visible Light Absorption ◽  
Visible Light Response ◽  
Band Gap Structure ◽  
Co Doped

A phosphorus and fluorine co-doped carbon nitride photocatalyst was constructed to modulate the band gap structure and visible light response ability of g-C3N4 as well as the photocatalytic H2 evolution activity.

The Origin of Visible Light Absorption in Chalcogen Element (S, Se, and Te)-Doped Anatase TiO2 Photocatalysts

2010 ◽  
Vol 114 (15) ◽  
pp. 7063-7069 ◽  
Author(s):  
Jian Wei Zheng ◽  
Atreyee Bhattcahrayya ◽  
Ping Wu ◽  
Zhong Chen ◽  
James Highfield ◽  
...  
Keyword(s):  
Visible Light ◽  
Light Absorption ◽  
Anatase Tio2 ◽  
Tio2 Photocatalysts ◽  
Visible Light Absorption

Nanostructured anatase TiO2 densified at high pressure as advanced visible light photocatalysts

2015 ◽  
Vol 14 (9) ◽  
pp. 1685-1693 ◽  
Author(s):  
Giovanni Carini Jr. ◽  
Francesco Parrino ◽  
Giovanni Palmisano ◽  
Gabriele Scandura ◽  
Ilaria Citro ◽  
...  
Keyword(s):  
High Pressure ◽  
Visible Light ◽  
Light Absorption ◽  
Anatase Tio2 ◽  
Structural Defects ◽  
Visible Light Absorption ◽  
Acetaldehyde Production

Uniaxial high pressure up to 2.1 GPa on anatase TiO2 nanopowders induces structural defects, increases visible light absorption and enhances acetaldehyde production.

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