Photocatalytic Degradation of Methylene Blue Dye from Aqueous Solutions in the Presence of Synthesized ZnO Nanoparticles

2021 ◽  
Vol 19 (8) ◽  
pp. 53-58
Author(s):  
Noor Al-Huda Baiee ◽  
Ayad F. Alkaim
Keyword(s):  
Methylene Blue ◽  
Zinc Oxide ◽  
Degradation Process ◽  
Catalytic Degradation ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Zinc Oxide Nanoparticle ◽  
Nano Zinc Oxide ◽  
Oxide Nanoparticle ◽  
Nano Zinc

The photo catalytic degradation of an aqueous solution of methylene blue dye has studied under different conditions of preparation Zinc oxide nanoparticles and study effect of various mass of zinc oxide on the removal of methylene blue dye and initial concentration of MB dye. Several techniques were used to determine the surface properties of the prepared nano-zinc oxide such as XRD, TEM. Results showed that, the phot catalytic degradation process was high at the beginning and then decreased with time. and the phot catalytic degradation efficiency, increased by increasing weight of zinc oxide nanoparticle from 0.05 g to 0.3 g. and decrease with increase weight of zinc oxide nanoparticle from 0.5 g to 0.7g. also showed that the best weight to removal MB dye 0.3 gm.

Photocatalytic degradation of methylene blue dye by porous zinc oxide nanofibers prepared via electrospinning: when defects become merits

2021 ◽  
pp. 149830
Author(s):  
Fabiola Pantò ◽  
Zainab Dahrouch ◽  
Abhirup Saha ◽  
Salvatore Patanè ◽  
Saveria Santangelo ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Zinc Oxide ◽  
Photocatalytic Degradation ◽  
Blue Dye ◽  
Methylene Blue Dye

Zinc oxide incorporated carbon nanotubes or graphene oxide nanohybrids for enhanced sonophotocatalytic degradation of methylene blue dye

2019 ◽  
Vol 487 ◽  
pp. 539-549 ◽  
Author(s):  
Mohamed Mokhtar Mohamed ◽  
Mohamed A. Ghanem ◽  
Mohamed Khairy ◽  
Eman Naguib ◽  
Nouf H. Alotaibi
Keyword(s):  
Carbon Nanotubes ◽  
Methylene Blue ◽  
Zinc Oxide ◽  
Graphene Oxide ◽  
Blue Dye ◽  
Methylene Blue Dye

Probing the photo- and electro-catalytic degradation mechanism of methylene blue dye over ZIF-derived ZnO

2019 ◽  
Vol 373 ◽  
pp. 377-388 ◽  
Author(s):  
Soumitra Payra ◽  
Swapna Challagulla ◽  
Yamini Bobde ◽  
Chanchal Chakraborty ◽  
Balaram Ghosh ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Degradation Mechanism ◽  
Catalytic Degradation ◽  
Blue Dye ◽  
Methylene Blue Dye

Synthesized Silver Carbon Nanotubes and Zinc Oxide Nanoparticles and their Ability to Remove Methylene Blue Dye

2019 ◽  
Vol 56 ◽  
pp. 1-16 ◽  
Author(s):  
Ahmed M. El-Khatib ◽  
N.S. Yousef ◽  
Z.F. Ghatass ◽  
Mohamed S. Badawi ◽  
M.M. Mohamed ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Methylene Blue ◽  
Zinc Oxide ◽  
Diffusion Model ◽  
Zinc Oxide Nanoparticles ◽  
Intraparticle Diffusion ◽  
Blue Dye ◽  
Oxide Nanoparticles ◽  
Methylene Blue Dye ◽  
Intraparticle Diffusion Model

A promising rotating arc discharge method has been developed for producing high purity silver carbon nanotube and zinc oxide nanoparticles, to study their capacities for methylene blue (MB) dye removal under different conditions such as contact time, initial methylene blue dye ion concentration, solution pH, and adsorbent dose. The equilibrium isotherm data were analyzed using Langmuir, Freundlich, Temkin isotherms. Correlation coefficients indicated the following order to fit isotherms for silver carbon nanotube: Freundlich > Langmuir > Temkin. On the other hand, for zinc oxide nanoparticles, the following adjustment founded to fit isotherms was: Langmuir > Temkin> Freundlich. Furthermore, separation factors and distribution coefficients of Methylene blue (MB) dye were calculated. Adsorption kinetic data were analyzed using pseudo-first and second -orders and Elovich model. Film and intraparticle Diffusion model were used to investigate Adsorption mechanism. Kinetic studies showed that the adsorption of methylene blue onto silver carbon nanotubes followed Elovich kinetic model, and the rate of adsorption is controlled by the liquid film diffusion model. Adsorption of methylene blue on zinc oxide nanoparticles followed the pseudo-second-order kinetic model, and the rate of adsorption is controlled by the intraparticle diffusion model.

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