Role of Carbon Quantum Dots on Nickel Titanate to Promote Water Oxidation Reaction under Visible Light Illumination

Author(s):  
Long Wang ◽  
Pingru Cai ◽  
Zuozhen Liu ◽  
Zailai Xie ◽  
Yuanxing Fang
2020 ◽  
Vol 7 (14) ◽  
pp. 2629-2636
Author(s):  
Guoan Lin ◽  
Ran Wang ◽  
Tongcheng Cao ◽  
Liangxi Yuan ◽  
Xiaoxiang Xu

Zr modification induces porous microstructures, inhibits defect formation and ameliorates the surface hydrophilicity of SrNbO2N, resulting in good photocatalytic activity.


Author(s):  
Ran Wang ◽  
Qi Wang ◽  
Jun Qian ◽  
Xiaoxiang Xu

Solid solutions between LaNbON2 and LaMg2/3Nb1/3O3, i.e. (LaNbON2)1-x(LaMg2/3Nb1/3O3)x (0.0 ≤ x ≤ 1.0) have been investigated as photocatalysts for water oxidation into oxygen under visible light illumination (λ ≥ 420...


2019 ◽  
Vol 6 (8) ◽  
pp. 2096-2103 ◽  
Author(s):  
Erbing Hua ◽  
Shu Jin ◽  
Shuang Ni ◽  
Xiaoxiang Xu

Sr2CuWO6 and Ba2CuWO6 are novel p-type semiconductors that work well for photocatalytic water oxidation under visible light illumination.


2020 ◽  
Vol 11 (1) ◽  
pp. 8171-8178 ◽  

Graphene Quantum Dots (GQDs) are considered to be a new class of materials with distinctive photoluminescence and low toxic level properties. Herein, we have reported the preparation of GQDs at different pH (pH 5, 8, 10, and 14) from pyrocatechol. UV-Visible absorption and normalized fluorescence spectra were applied to analyze the optical properties of GQDs at different pH. DLS and AFM had been performed to study the mean particle size and the morphology of the GQDs. Further, the photocatalytic behavior of the synthesized GQDs obtained at pH 10 was used in the degradation of dyes viz. Methylene Blue and Methyl Orange under visible-light irradiation. The influence of certain parameters such as pH of the GQD, contact time, a dosage of GQDs, and the kinetic model was demonstrated. The plausible mechanism of degradation of the toxic dyes based on GQDs under visible light illumination was discussed, too.


2020 ◽  
Vol 390 ◽  
pp. 57-66
Author(s):  
Ran Wang ◽  
Yawei Wang ◽  
Shufang Chang ◽  
Shu Jin ◽  
Yinlin Shao ◽  
...  

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