C-, N-, S-, and Fe-Doped TiO2and SrTiO3Nanotubes for Visible-Light-Driven Photocatalytic Water Splitting: Prediction from First Principles

2015 ◽  
Vol 119 (32) ◽  
pp. 18686-18696 ◽  
Author(s):  
Sergei Piskunov ◽  
Oleg Lisovski ◽  
Jevgenijs Begens ◽  
Dmitry Bocharov ◽  
Yuri F. Zhukovskii ◽  
...  
RSC Advances ◽  
2021 ◽  
Vol 11 (15) ◽  
pp. 8751-8758
Author(s):  
Xiaonong Wang ◽  
Xiaoxia Li ◽  
Jingxiang Low

Photocatalytic water splitting provides an effective way to prepare hydrogen and oxygen.


2018 ◽  
Vol 226 ◽  
pp. 295-302 ◽  
Author(s):  
Yijun Fu ◽  
Cheng Zhu ◽  
Changan Liu ◽  
Mengling Zhang ◽  
Huibo Wang ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4739
Author(s):  
Shaoying Guo ◽  
Hao Lin ◽  
Jiapeng Hu ◽  
Zhongliang Su ◽  
Yinggan Zhang

Seeking candidate photocatalysts for photocatalytic water splitting, via visible light, is of great interest and importance. In this study, we have comprehensively explored the crystal structures, electronic properties, and optical absorbance of two-dimensional (2D) Sc2CT2 (T = F, Cl, Br) MXenes and their corresponding photocatalytic water splitting, under the visible-light region, by first-principles calculations. Herein, we have proposed that 2D Sc2CT2 MXenes can be fabricated from their layered bulk compounds, alternatively to the traditional chemical etching method. Creatively, we proposed Sc2CT2 (T = F, Br) as new materials; the band edge alignments of Sc2CF2 can be tuned to meet the water redox potentials at pH = 8.0. It is highlighted that Sc2CF2 shows outstanding optical spectra harvested under visible-light wavelength regions, and efficient separation of photo-induced electrons and holes in different zones. These present results provide eloquent evidence and open a new door on the photocatalysis applications of such novel semiconducting MXenes.


2020 ◽  
Vol 22 (27) ◽  
pp. 15649-15657 ◽  
Author(s):  
Lei Hu ◽  
Wencai Yi ◽  
Tongde Rao ◽  
Jianting Tang ◽  
Chuanbo Hu ◽  
...  

The g-C3N4/SiP-α, -β and -γ heterojunctions are all visible-light-driven water splitting photocatalysts with a type-II band alignment.


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