Effect of Fe-N Codoping on the Optical Properties of TiO 2 for Use in Photoelectrolysis of Water

Effect of Fe-N Codoping on the Optical Properties of TiO 2 for Use in Photoelectrolysis of Water

TiO nanoparticles were synthesized by green chemistry where organic solvents are replaced by an aqueous extract solution of lemongrass leaves that act as a reducer and growth-stopper agent. The nanoparticles were codoped with N-Fe to modify the absorption range in the electromagnetic spectrum and we...

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Veröffentlicht in:ACS omega 2021-02, Vol.6 (7), p.4932-4938
Hauptverfasser: Realpe Jimenez, Alvaro, Nuñez, Diana, Rojas, Nancy, Ramirez, Yulissa, Acevedo, María
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Nuñez, Diana
Rojas, Nancy
Ramirez, Yulissa
Acevedo, María
description TiO nanoparticles were synthesized by green chemistry where organic solvents are replaced by an aqueous extract solution of lemongrass leaves that act as a reducer and growth-stopper agent. The nanoparticles were codoped with N-Fe to modify the absorption range in the electromagnetic spectrum and were characterized by Fourier-transform infrared (FTIR), scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS), and UV-vis/diffuse reflectance spectroscopy (DRS). The modified samples with Fe and N resulted in smaller nanoparticle size values than pure TiO . Similarly, the band-gap energy for doped nanoparticles decreased to 2.22 eV in relation to the value of 3.09 eV for pure TiO , due to the introduction of new energy levels.
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title Effect of Fe-N Codoping on the Optical Properties of TiO 2 for Use in Photoelectrolysis of Water
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