Synthesis and photocatalytic activity of nano-cobalt ferrite catalyst for the photo-degradation various dyes under simulated sunlight irradiation

2019 ◽  
Vol 91 ◽  
pp. 367-376 ◽  
Author(s):  
Meijuan Sun ◽  
Xiulin Han ◽  
Shuguang Chen
Keyword(s):  
Photocatalytic Activity ◽  
Cobalt Ferrite ◽  
Simulated Sunlight ◽  
Photo Degradation ◽  
Sunlight Irradiation

Preparation and Modification of Y2Cu2O5/Y2O3 Photocatalysts for H2 Evolution under Simulated Sunlight Irradiation

2011 ◽  
Vol 239-242 ◽  
pp. 3001-3004 ◽  
Author(s):  
Li Zhang ◽  
Ke Long Huang ◽  
Hao Chen ◽  
Jian Hui Yan
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Production Rate ◽  
Hydrogen Reduction ◽  
Sol Gel ◽  
Oxalic Acid Solution ◽  
Impregnation Method ◽  
Simulated Sunlight ◽  
Hydrogen Production Rate ◽  
Sunlight Irradiation

Y2Cu2O5/Y2O3 (YCO) photocatalysts were prepared using sol-gel method. The photocatalysts were modified by Pt particles to prepare Pt-loaded composite (Pt-YCO) using hydrogen reduction method, and NiO/YCO were synthesized by impregnation method. These obtained samples were characterized by thermogravimetry and differential thermal analysis (TG/DTA), X-ray diffraction (XRD), and ultraviolet visible diffuse reflectance absorption spectra (UV-Vis DRS) techniques. Photocatalytic H2 evolution activity of the modified photocatalysts has been evaluated from aqueous oxalic acid solution used as sacrificial reagent under simulated sunlight irradiation. The result showed that when the concentration of the photocatalysts is 0.8 g·L-1， Pt-YCO photocatalyst exhibits higher photocatalytic activity compared with unloaded YCO. The hydrogen production rate is 4.12 mmol·h-1·g-1 with 1wt% loading amount of Pt, while the loading content is up to 2.5wt%, the hydrogen production rate of Pt-YCO photocatalyst deecreased instead. Whereas NiO/YCO composite exhibits less photocatalytic activity than that of pure YCO under the same conditions.

Arginine-induced porphyrin-based self-assembled nanostructures for photocatalytic applications under simulated sunlight irradiation

2017 ◽  
Vol 16 (2) ◽  
pp. 151-154 ◽  
Author(s):  
Duong Duc La ◽  
Sidhanath V. Bhosale ◽  
Lathe A. Jones ◽  
Sheshanath V. Bhosale
Keyword(s):  
Photocatalytic Activity ◽  
Rhodamine B ◽  
Simulated Sunlight ◽  
Sunlight Irradiation ◽  
Self Assembled ◽  
Photocatalytic Applications

Self-assembled nanobelts show enhanced photocatalytic activity for the photodegradation of pollutant Rhodamine B under simulated sunlight irradiation.

Surface modification of B–TiO2 by deposition of Au nanoparticles to increase its photocatalytic activity under simulated sunlight irradiation

2018 ◽  
Vol 88 (2) ◽  
pp. 474-487 ◽  
Author(s):  
J. C. Durán-Álvarez ◽  
A. L. Santiago ◽  
D. Ramírez-Ortega ◽  
P. Acevedo-Peña ◽  
F. Castillón ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Surface Modification ◽  
Au Nanoparticles ◽  
Simulated Sunlight ◽  
Sunlight Irradiation

scholarly journals Construction of Z-Scheme g-C3N4/CNT/Bi2Fe4O9 Composites with Improved Simulated-Sunlight Photocatalytic Activity for the Dye Degradation

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 613 ◽  
Author(s):  
Lijing Di ◽  
Hua Yang ◽  
Tao Xian ◽  
Xiujuan Chen
Keyword(s):  
Photocatalytic Activity ◽  
Dye Degradation ◽  
Active Species ◽  
Simulated Sunlight ◽  
Acid Orange 7 ◽  
Electron Mediator ◽  
Sunlight Irradiation ◽  
Highly Efficient ◽  
Electron Migration ◽  
Photoelectrochemical Measurement

In this work, ternary all-solid-state Z-scheme g-C3N4/carbon nanotubes/Bi2Fe4O9 (g-C3N4/CNT/BFO) composites with enhanced photocatalytic activity were prepared by a hydrothermal method. The morphology observation shows that ternary heterojunctions are formed in the g-C3N4/CNT/BFO composites. The photocatalytic activity of the samples for the degradation of acid orange 7 was investigated under simulated sunlight irradiation. It was found that the ternary composites exhibit remarkable enhanced photocatalytic activity when compared with bare BFO and g-C3N4/BFO composites. The effect of the CNT content on the photocatalytic performance of the ternary composites was investigated. The photocatalytic mechanism of g-C3N4/CNT/BFO was proposed according to the photoelectrochemical measurement, photoluminescence, active species trapping experiment and energy-band potential analysis. The results reveal that the introduction of CNT as an excellent solid electron mediator into the ternary composites can effectively accelerate the electron migration between BFO and g-C3N4. This charge transfer process results in highly-efficient separation of photogenerated charges, thus leading to greatly enhanced photocatalytic activity of g-C3N4/CNT/BFO composites. Furthermore, the g-C3N4/CNT/BFO composites also exhibit highly-efficient photo-Fenton-like catalysis property.

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