Boosting electron population in δ-Bi2O3 through iron doping for improved photocatalytic activity

2019 ◽  
Vol 30 (5) ◽  
pp. 983-991 ◽  
Author(s):  
Hanggara Sudrajat ◽  
Sri Hartuti
Keyword(s):  
Photocatalytic Activity ◽  
Iron Doping ◽  
Electron Population

Mechanistic understanding of the increased photoactivity of TiO2 nanosheets upon tantalum doping

2022 ◽  
Author(s):  
Hanggara Sudrajat ◽  
Sri Hartuti ◽  
Sandhya Babel
Keyword(s):  
Photocatalytic Activity ◽  
Recombination Rate ◽  
Electron Lifetime ◽  
Electron Population ◽  
Electron Traps ◽  
Tio2 Nanosheets ◽  
Mechanistic Understanding

Doping of Ta5+ into TiO2 replaces Ti4+ to decrease the recombination rate and elongate the electron lifetime due to the formation of shallow electron traps from Ti3+ defects. The elongated electron lifetime increases electron population and photocatalytic activity.

scholarly journals Facile Synthesis of Fe-Doped Titanate Nanotubes with Enhanced Photocatalytic Activity for Castor Oil Oxidation

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Guozhu Fu ◽  
Gang Wei ◽  
Yanqiu Yang ◽  
WeiCheng Xiang ◽  
Ning Qiao
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Method ◽  
Castor Oil ◽  
Titanate Nanotubes ◽  
Iron Doping ◽  
Oil Oxidation ◽  
Facile Synthesis ◽  
Iron Doped

Iron-doped titanate nanotubes were synthesized by hydrothermal method, and the photocatalytic activity was greatly enhanced by iron doping.

The effect of iron doping on the photocatalytic activity of a Bi2WO6–BiVO4composite

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54060-54068 ◽  
Author(s):  
Saranyoo Chaiwichian ◽  
Khatcharin Wetchakun ◽  
Sukon Phanichphant ◽  
Wiyong Kangwansupamonkon ◽  
Natda Wetchakun
Keyword(s):  
Photocatalytic Activity ◽  
Separation Efficiency ◽  
Photogenerated Electron ◽  
Iron Doping ◽  
Electron Hole

The formation of Fe-doped Bi2WO6–BiVO4composites could improve the separation efficiency of photogenerated electron–hole pairs, then increasing its photocatalytic activity.

scholarly journals Photocatalytic Activity of Iron Doping TiO2 Prepared by Several Methods

2001 ◽  
Vol 17 (03) ◽  
pp. 282-285 ◽  
Author(s):  
Shui Miao ◽  
◽  
Yue Lin-Hai ◽  
Xu Zhe-De
Keyword(s):  
Photocatalytic Activity ◽  
Iron Doping

scholarly journals Effect of temperature, pressure and power in obtaining TiO2 and TiO2-Fe via microwaves and evaluation of photocatalytic activity with synthesis time

2019 ◽  
Vol 29 ◽  
pp. 1-13
Author(s):  
Ulises Zurita Luna ◽  
Juan Zárate Medina ◽  
Anayeli Yazmin Gallegos Hernández ◽  
Rafael Romero Toledo ◽  
José Apolinar Cortés
Keyword(s):  
Photocatalytic Activity ◽  
Diffuse Reflectance Spectroscopy ◽  
Uv Light ◽  
Effect Of Temperature ◽  
Blue Dye ◽  
Iron Doping ◽  
X Ray Diffraction ◽  
Synthesis Time ◽  
Power Change ◽  
Acid Blue

Photocatalysts of titanium dioxide (TiO2) doped with different percentages of iron were synthesized via microwave at 180 °C, with two different times, 2 min and 10 min. Temperature, pressure, and power change were analyzed. Important changes were mainly observed in the pressure conditions. The synthesized photocatalysts were characterized using: Scanning electron microscopy (SEM), X-ray diffraction (XRD), specific surface area (BET), and UV-vis diffuse reflectance spectroscopy. The presence of nanoparticles was observed; furthermore, anatase crystalline phase of TiO2 was the only found. A study of the photocatalytic activity for discoloration acid blue dye 9 (AB9) with UV light was performed, and it was compared with the commercial photocatalyst Degussa P-25, being the best result a total discoloration of dye at 45 min of reaction using the TiO2 photocatalyst undoped synthesized at 2 min. The iron doping did not show an improvement in the photocatalytic activity, and it was also observed that the time of synthesis considerably influences in the photocatalytic activity, with best efficiencies at minor synthesis time.

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