Band-Gap Engineering and Enhanced Photocatalytic Activity of Sm and Mn Doped BiFeO3Nanoparticles

2016 ◽  
Vol 100 (1) ◽  
pp. 31-40 ◽  
Author(s):  
Syed Irfan ◽  
Yang Shen ◽  
Syed Rizwan ◽  
Huan-Chun Wang ◽  
Sadaf B. Khan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Band Gap ◽  
Band Gap Engineering ◽  
Mn Doped

Enhanced visible-active photocatalytic behaviors observed in Mn-doped BiFeO3

2018 ◽  
Vol 32 (17) ◽  
pp. 1850185 ◽  
Author(s):  
Yun-Hui Si ◽  
Yu Xia ◽  
Ya-Yun Li ◽  
Shao-Ke Shang ◽  
Xin-Bo Xiong ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Diffuse Reflectance Spectroscopy ◽  
X Ray Diffraction ◽  
Electron Hole ◽  
X Ray ◽  
Mn Doped ◽  
Hole Recombination ◽  
Narrow Band Gap Semiconductors

A series of BiFeO3 and BiFe[Formula: see text]Mn[Formula: see text]O3 (x = 0, 0.02, 0.04, 0.06, 0.08, 0.10) were synthesized by a hydrothermal method. The samples were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy (EDS) and UV–Vis diffuse reflectance spectroscopy, and their photocatalytic activity was studied by photocatalytic degradation of methylene blue in aqueous solution under visible light irradiation. The band gap of BiFeO3 was significantly decreased from 2.26 eV to 1.90 eV with the doping of Mn. Furthermore, the 6% Mn-doped BiFeO3 photocatalyst exhibited the best activity with a degradation rate of 94% after irradiation for 100 min. The enhanced photocatalytic activity with Mn doping could be attributed to the enhanced optical absorption, increment of surface reactive sites and reduction of electron–hole recombination. Our results may be conducive to design more efficient photocatalysts responsive to visible light among narrow band gap semiconductors.

Efficient Strategy to Enhance the Photocatalytic Activity of Ir-doped SrTiO3 : A Hybrid DFT Approach

2022 ◽  
Author(s):  
Brindaban Modak
Keyword(s):  
Photocatalytic Activity ◽  
Band Gap ◽  
Water Splitting ◽  
Band Gap Engineering ◽  
Photocatalytic Water Splitting ◽  
Efficient Strategy

Photocatalytic water splitting using sunlight is one of the most promising approaches to produce hydrogen, for which an increasing focus has been directed towards band gap engineering of the existing...

scholarly journals Group-IVA element-doped SrIn2O4 as potential materials for hydrogen production from water splitting with solar energy

RSC Advances ◽  
2018 ◽  
Vol 8 (56) ◽  
pp. 32317-32324
Author(s):  
Hai-Cai Huang ◽  
Chuan-Lu Yang ◽  
Mei-Shan Wang ◽  
Xiao-Guang Ma ◽  
You-Gen Yi
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Solar Energy ◽  
Band Gap ◽  
Water Splitting ◽  
Hydrogen Generation ◽  
Band Gap Engineering ◽  
Group Iva

Band gap engineering can efficiently improve the photocatalytic activity of semiconductors for hydrogen generation from water splitting.

Synthesis and Mn doped band gap engineering in SnS nanoparticles

2020 ◽  
Vol 272 ◽  
pp. 127842
Author(s):  
B.K. Pandey ◽  
Ram Gopal
Keyword(s):  
Band Gap ◽  
Band Gap Engineering ◽  
Mn Doped

Improved photovoltaic effects in Mn-doped BiFeO 3 ferroelectric thin films through band gap engineering

2017 ◽  
Vol 26 (6) ◽  
pp. 067702 ◽  
Author(s):  
Tang-Liu Yan ◽  
Bin Chen ◽  
Gang Liu ◽  
Rui-Peng Niu ◽  
Jie Shang ◽  
...  
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Ferroelectric Thin Films ◽  
Band Gap Engineering ◽  
Photovoltaic Effects ◽  
Mn Doped

Band gap engineering design for construction of energy-levels well-matched semiconductor heterojunction with enhanced visible-light-driven photocatalytic activity

RSC Advances ◽  
2014 ◽  
Vol 4 (78) ◽  
pp. 41219-41227 ◽  
Author(s):  
Hongwei Huang ◽  
Shuobo Wang ◽  
Yihe Zhang ◽  
Paul K. Chu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Engineering Design ◽  
Energy Levels ◽  
Band Gap Engineering ◽  
Photocurrent Generation ◽  
Visible Light Driven

Energy-levels well-matched Mg1−xCuxWO4/Bi2WO6 heterojunction was constructed based on band gap engineering. It exhibits high visible-light photoactivity for RhB degradation and photocurrent generation.

g-C3N4/Bi4O5I2 2D–2D heterojunctional nanosheets with enhanced visible-light photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 10895-10903 ◽  
Author(s):  
Na Tian ◽  
Yihe Zhang ◽  
Chengyin Liu ◽  
Shixin Yu ◽  
Min Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Engineering Design ◽  
Band Gap Engineering ◽  
No Removal ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Driven ◽  
Visible Light Photocatalytic

The 2D–2D heterojunctional g-C3N4/Bi4O5I2 nanosheets were successfully constructed based on band gap engineering design. It exhibits high visible-light-driven photocatalytic activity for degradation of RhB and NO removal.

Highly efficient visible-light-driven reduction of Cr(vi) from water by porphyrin-based metal–organic frameworks: effect of band gap engineering on the photocatalytic activity

2020 ◽  
Vol 10 (22) ◽  
pp. 7724-7733 ◽  
Author(s):  
Nayuesh Sharma ◽  
Arnab Kumar Dey ◽  
Rohit Y. Sathe ◽  
Ajay Kumar ◽  
Venkata Krishnan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Aqueous Phase ◽  
Metal Organic Frameworks ◽  
Photocatalytic Reduction ◽  
Band Gap Engineering ◽  
Highly Efficient ◽  
Visible Light Driven ◽  
Metal Organic

Highly efficient visible-light-assisted photocatalytic reduction of Cr(vi) to Cr(iii) from aqueous phase using Zr(iv)-porphyrin MOFs, Zr6(μ3-OH)8(OH)8(MTCPP)2, (PCN-222(M)) (M = H2, ZnII, CuII, NiII, CoII, FeIIICl, and MnIIICl) is presented.

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