Excellent Sun-Light-Driven Photocatalytic Activity by Aurivillius Layered Perovskites, Bi5–xLaxTi3FeO15 (x = 1, 2)

2014 ◽  
Vol 6 (23) ◽  
pp. 21000-21010 ◽  
Author(s):  
Gollapally Naresh ◽  
Tapas Kumar Mandal
Keyword(s):  
Photocatalytic Activity ◽  
Sun Light ◽  
Layered Perovskites

Enhanced Simulated Sun Light Photocatalytic Activity of α-Fe2O3 Modified g-C3N4 prepared In-situ

2016 ◽  
Vol 19 (1) ◽  
Author(s):  
Xinlu Liu ◽  
Junbo Zhong ◽  
Jianzhang Li ◽  
Wei Hu ◽  
Qizhao Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Sun Light

AbstractIn this paper, α-Fe

scholarly journals Efficient Cr(vi) photoreduction under natural solar irradiation using a novel step-scheme ZnS/SnIn4S8 nanoheterostructured photocatalysts

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29433-29440
Author(s):  
Metwally Madkour ◽  
Yasser Abdelmonem ◽  
Umair Yaqub Qazi ◽  
Rahat Javaid ◽  
S. Vadivel
Keyword(s):  
Photocatalytic Activity ◽  
Solar Irradiation ◽  
Industrial Use ◽  
Sun Light

The Cr(vi) photoreduction tests demonstrated an improved photocatalytic activity of SIS and 2Z-SIS to be 61.0% and 92.3% respectively after 120 min. The results indicated the photocatalyst's capability under sun light, allowing for its industrial use.

scholarly journals Effects of swift heavy ion irradiation on structural, optical and photocatalytic properties of ZnO–CuO nanocomposites prepared by carbothermal evaporation method

2015 ◽  
Vol 6 ◽  
pp. 928-937 ◽  
Author(s):  
Sini Kuriakose ◽  
D K Avasthi ◽  
Satyabrata Mohapatra
Keyword(s):  
Photocatalytic Activity ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
X Ray Diffraction ◽  
Visible Absorption ◽  
Swift Heavy Ion Irradiation ◽  
Heavy Ion Irradiation ◽  
Swift Heavy Ion ◽  
Nanocomposite Thin Films ◽  
Sun Light

ZnO–CuO nanocomposite thin films were prepared by carbothermal evaporation of ZnO and Cu, combined with annealing. The effects of 90 MeV Ni7+ ion irradiation on the structural and optical properties of ZnO–CuO nanocomposites were studied by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), UV–visible absorption spectroscopy and Raman spectroscopy. XRD studies showed the presence of ZnO and CuO nanostructures in the nanocomposites. FESEM images revealed the presence of nanosheets and nanorods in the nanocomposites. The photocatalytic activity of ZnO–CuO nanocomposites was evaluated on the basis of degradation of methylene blue (MB) and methyl orange (MO) dyes under sun light irradiation and it was observed that swift heavy ion irradiation results in significant enhancement in the photocatalytic efficiency of ZnO–CuO nanocomposites towards degradation of MB and MO dyes. The possible mechanism for the enhanced photocatalytic activity of ZnO–CuO nanocomposites is proposed. We attribute the observed enhanced photocatalytic activity of ZnO–CuO nanocomposites to the combined effects of improved sun light utilization and suppression of the recombination of photogenerated charge carriers in ZnO–CuO nanocomposites.

Tailoring the photocatalytic activity of layered perovskites by opening the interlayer vacancy via ion-exchange reactions

CrystEngComm ◽  
2015 ◽  
Vol 17 (45) ◽  
pp. 8703-8709 ◽  
Author(s):  
Yingqi Wang ◽  
Xiaofang Lai ◽  
Xujie Lü ◽  
Yanting Li ◽  
Qinglong Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ion Exchange ◽  
Exchange Reaction ◽  
Underlying Mechanism ◽  
Effective Model ◽  
Layered Perovskite ◽  
Exchange Reactions ◽  
Ion Exchange Reaction ◽  
Improved Performance ◽  
Layered Perovskites

The photocatalytic activity of the layered perovskite K2La2Ti3O10 was regulated by an ion-exchange reaction with a series of cations – Ca2+, Sr2+, and Ba2+. The underlying mechanism of the improved performance and an effective model for designing the photocatalyst were discussed.

scholarly journals Development of Photocatalytic 3D-Printed Cementitious Mortars: Influence of the Curing, Spraying Time Gaps and TiO2 Coating Rates

Buildings ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 381
Author(s):  
Behzad Zahabizadeh ◽  
Iran Rocha Segundo ◽  
João Pereira ◽  
Elisabete Freitas ◽  
Aires Camões ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Activity ◽  
Dark Condition ◽  
Photocatalytic Efficiency ◽  
3D Printed ◽  
As Adsorption ◽  
Time Periods ◽  
Coating Time ◽  
Sun Light ◽  
Curing Age

This work evaluated the photocatalytic activity of 3D-printed cementitious mortar specimens functionalized with TiO2 nanoparticles to obtain a multifunctional and smart concrete. This research aims to assess the influence of different parameters related to the functionalization process such as adsorption, coating time gaps, and coating rates on the degradation efficiency of the functionalized cementitious specimens. Each specimen was evaluated under the degradation of Rhodamine B (RhB) in an aqueous solution using a sun-light simulation. The obtained results showed a decrease in adsorption (under dark condition) with increasing the sample curing age. The highest photocatalytic efficiency was observed for coated samples aged 7 days. By increasing the coating rates, the photocatalytic efficiency is enhanced. Nonetheless, regardless of the coating rates, all the specimens showed an increase in photocatalytic efficiency for longer time periods of light exposition, i.e., after 8 h of irradiation.

Synthesis and Characterization of CdTiO3@S Composite: Investigation of Photocatalytic Activity for the Degradation of Crystal Violet Under Sun Light

2019 ◽  
Vol 30 (3) ◽  
pp. 667-683 ◽  
Author(s):  
Tayebeh Tavakoli-Azar ◽  
Ali Reza Mahjoub ◽  
Mirabdullah Seyed Sadjadi ◽  
Nazanin Farhadyar ◽  
Moayad Hossaini Sadr
Keyword(s):  
Photocatalytic Activity ◽  
Crystal Violet ◽  
Synthesis And Characterization ◽  
Sun Light
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