Green synthesis and characterisation of ZnMn 2 O 4 nanoparticles for photocatalytic degradation of Congo red dye and kinetic study

2019 ◽  
Vol 14 (9) ◽  
pp. 986-991 ◽  
Author(s):  
Saeid Taghavi Fardood ◽  
Farzaneh Moradnia ◽  
Ali Ramazani
Author(s):  
Haseeb Ullah ◽  
Zaibunisa Khan ◽  
Jamal Abdul Nasir ◽  
Timuçin Balkan ◽  
Ian S. Butler ◽  
...  

Author(s):  
Muthuchamy Maruthupandy ◽  
Thillaichidambaram Muneeswaran ◽  
Thirumalaiswamy Vennila ◽  
Muthusamy Anand ◽  
Wan-Seob Cho ◽  
...  

2020 ◽  
Vol 42 (5) ◽  
pp. 687-687
Author(s):  
Nauman Ali Nauman Ali ◽  
Adnan khan Adnan khan ◽  
Aaisha Riaz Aaisha Riaz ◽  
Abdullah M Asiri and Tahseen Kamal Abdullah M Asiri and Tahseen Kamal

In the current research work, bismuth doped tin-dioxide (Bi-SnO2) was prepared by wet chemical co-precipitation method. The synthesized material was used as a photocatalyst in the degradation of congo red dye (CR) in its aqueous solution. The prepared catalyst was used in the uncalcined- and calcined forms for the photocatalytic reaction. The synthesized catalyst in both forms was characterized by UV-visible spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD). The XRD revealed that the calcination of the Bi-SnO2 improved its crystallinity. The SEM showed that the Bi-SnO2 had average size less than 150nm. Photocatalytic degradation of CR dye was carried out under ultra-violet light as well as under sunlight. While testing the photocatalytic degradation performance, it was found that more than 80% of the CR was degraded by using Bi-SnO2 nanoparticles under both lighting conditions. Moreover, the calcined Bi-SnO2 nanoparticles showed better photocatalytic performance as compared to its uncalcined form. The present work provides a viable way to make efficient photocatalyst based-on Bi-SnO2 to employ under UV and sunlight for the degradation of the CR dye without the need of oxidizing or reducing agents.


2020 ◽  
Vol 19 ◽  
pp. 100488 ◽  
Author(s):  
Sohini Chakraborty ◽  
J. Joselin Farida ◽  
Remya Simon ◽  
S. Kasthuri ◽  
N.L. Mary

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