Facile chemical fabrication of Ni doped CoAl2O4 nano-spinel photocatalysts: Physico-chemical properties and photodegradation of toxic malachite green dye under visible light

2021 ◽  
pp. 1-21
Author(s):  
Manasai Arunkumar ◽  
Arputharaj Samson Nesaraj
Keyword(s):  
Visible Light ◽  
Malachite Green ◽  
Chemical Properties ◽  
Malachite Green Dye ◽  
Physico Chemical

Photo-catalytic Study of Malachite Green Dye Degradation Using Rice Straw Extracted Activated Carbon Supported ZnO Nano-particles

2020 ◽  
Vol 10 (6) ◽  
pp. 849-859
Author(s):  
Radwa A. El-Salamony ◽  
Abeer A. Emam ◽  
Nagwa A. Badawy ◽  
Sara F. El-Morsi
Keyword(s):  
Activated Carbon ◽  
Visible Light ◽  
Rice Straw ◽  
Malachite Green ◽  
Dye Degradation ◽  
Nano Particles ◽  
Oh Radicals ◽  
Impregnation Method ◽  
Photo Degradation ◽  
Malachite Green Dye

Objective: ZnO nanoparticles were synthesized using wet impregnation method, and activated carbon from rice straw (RS) prepared through chemical route. Methods: The nano-composites ZnO-AC series were prepared with different ZnO:AC ratio of 10, 20, 50, and 70% to optimize the zinc oxide nanoparticles used. The obtained composites were characterized by FE-SEM, XRD, SBET, and optical techniques then used for the photo-degradation of Malachite green dye (MG) under visible light. Results: It was found that 10ZnO-AC exhibited excellent visible light photo-catalytic performance. The ·OH radicals’ formation is matching with photo-activity of the prepared composites. The photo-degradation efficiency of MG increased from 63% to 93%, when the 10ZnO-AC photocatalyst amount was increased from 0.5 to 6 g/L. Conclusion: The GC-MS technique was used to analyze the intermediates formed; up to 15 kinds of chemicals were identified as the degradation products.

Fluorine doped zinc oxide nanowires: Enhanced photocatalysts degrade malachite green dye under visible light conditions

2016 ◽  
Vol 42 (4) ◽  
pp. 4672-4678 ◽  
Author(s):  
Mohammad W. Kadi ◽  
David McKinney ◽  
Reda M. Mohamed ◽  
Ibraheem. A. Mkhalid ◽  
Wolfgang Sigmund
Keyword(s):  
Zinc Oxide ◽  
Visible Light ◽  
Malachite Green ◽  
Light Conditions ◽  
Zinc Oxide Nanowires ◽  
Oxide Nanowires ◽  
Malachite Green Dye

Photocatalytic degradation of malachite green dye using chitosan supported ZnO and Ce–ZnO nano-flowers under visible light

2020 ◽  
Vol 258 ◽  
pp. 110043 ◽  
Author(s):  
Alaa Magdy Saad ◽  
Mostafa R. Abukhadra ◽  
Sayed Abdel-Kader Ahmed ◽  
Ali M. Elzanaty ◽  
Amr H. Mady ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Malachite Green ◽  
Malachite Green Dye

Instantaneous photocatalytic degradation of malachite green dye under visible light using novel green Co–ZnO/algae composites

2020 ◽  
Vol 46 (3) ◽  
pp. 1955-1973 ◽  
Author(s):  
Abdelrahman M. Rabie ◽  
Mostafa R. Abukhadra ◽  
Ahmed M. Rady ◽  
Sayed A. Ahmed ◽  
Ahmed Labena ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Malachite Green ◽  
Malachite Green Dye

Mineralization of malachite green dye over visible light responsive bismuth doped TiO2–ZrO2 ferromagnetic nanocomposites

2015 ◽  
Vol 39 (5) ◽  
pp. 3629-3638 ◽  
Author(s):  
Archana Charanpahari ◽  
Sachin G. Ghugal ◽  
Suresh S. Umare ◽  
Rajamma Sasikala
Keyword(s):  
Visible Light ◽  
Malachite Green ◽  
Hydroxyl Radicals ◽  
Active Species ◽  
Doped Tio2 ◽  
Malachite Green Dye

Visible light responsive, ferromagnetic, reusable Bi doped TiO2–ZrO2 nanocomposites exhibit enhanced photodegradation and mineralization of malachite green dye. Hydroxyl radicals, holes and superoxides are active species in photodegradation.

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