Study of the effect of operative conditions on the decolourization of azo dye solutions by using hydrodynamic cavitation at the lab scale

2020 ◽  
Vol 98 (9) ◽  
pp. 1980-1988 ◽  
Author(s):  
Valentina Innocenzi ◽  
Marina Prisciandaro ◽  
Francesco Vegliò
Keyword(s):  
Azo Dye ◽  
Hydrodynamic Cavitation ◽  
Dye Solutions

scholarly journals Role of Nanocrystallites of Al-Based Glasses and H2O2 in Degradation Azo Dyes

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 39
Author(s):  
Qi Chen ◽  
Zhicheng Yan ◽  
Hao Zhang ◽  
KiBuem Kim ◽  
Weimin Wang
Keyword(s):  
Metallic Glasses ◽  
Azo Dye ◽  
Amorphous Matrix ◽  
Nano Scale ◽  
Transmission Electron ◽  
Melt Spun ◽  
Degradation Ability ◽  
Tem Transmission Electron Microscopy ◽  
Dye Solutions

Al-based metallic glasses have a special atomic structure and should have a unique degradation ability in azo dye solutions. The Al88Ni9Y3 (Y3), Al85Ni9Y6 (Y6) and Al82Ni9Y9 (Y9) glassy ribbons are melt spun and used in degrading methyl orange (MO) azo dye solution with adding H2O2. With increasing cY, the as-spun ribbons have an increasing GFA (glass formability) and gradually decreased the degradation rate of MO solution. TEM (transmission electron microscopy) results show that the Y3 ribbon has nano-scale crystallites, which may form the channels to transport elements to the surface for degrading the MO solution. After adding H2O2, the degradation efficiency of Al-based glasses is improved and the Y6 ribbon has formed nano-scale crystallites embedded in the amorphous matrix and it has the largest improvement in MO solution degradation. These results indicate that forming nano-scale crystallites and adding H2O2 are effective methods to improve the degradation ability of Al-based glasses in azo dye solutions.

Treatment of real industrial-grade dye solutions and printing ink wastewater using a novel pilot-scale hydrodynamic cavitation reactor

2021 ◽  
Vol 297 ◽  
pp. 113301
Author(s):  
Charikleia Zampeta ◽  
Kleio Bertaki ◽  
Irene-Eva Triantaphyllidou ◽  
Zacharias Frontistis ◽  
Dimitris V. Vayenas
Keyword(s):  
Pilot Scale ◽  
Hydrodynamic Cavitation ◽  
Industrial Grade ◽  
Printing Ink ◽  
Dye Solutions

Calcined Layered Double Hydroxides for Decolorization of Azo Dye Solutions: Equilibrium, Kinetics, and Recycling Studies

2012 ◽  
Vol 29 (7) ◽  
pp. 685-692 ◽  
Author(s):  
Thaisa P.F. Teixeira ◽  
Simone I. Pereira ◽  
Sergio F. Aquino ◽  
Anderson Dias
Keyword(s):  
Layered Double Hydroxides ◽  
Azo Dye ◽  
Double Hydroxides ◽  
Dye Solutions

scholarly journals Development of a novel high-entropy alloy with eminent efficiency of degrading azo dye solutions

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Z. Y. Lv ◽  
X. J. Liu ◽  
B. Jia ◽  
H. Wang ◽  
Y. Wu ◽  
...  
Keyword(s):  
Azo Dye ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Dye Solutions

Photocatalytic efficiency of ZnO plates in degradation of azo dye solutions

2008 ◽  
Vol 198 (1) ◽  
pp. 1-6 ◽  
Author(s):  
E. Yassıtepe ◽  
H.C. Yatmaz ◽  
C. Öztürk ◽  
K. Öztürk ◽  
C. Duran
Keyword(s):  
Azo Dye ◽  
Photocatalytic Efficiency ◽  
Degradation Of Azo Dye ◽  
Dye Solutions

Impact of ozonation on subsequent treatment of azo dye solutions

2007 ◽  
Vol 82 (11) ◽  
pp. 1012-1022 ◽  
Author(s):  
Umesh K Khare ◽  
Purnendu Bose ◽  
Padma S Vankar
Keyword(s):  
Azo Dye ◽  
Subsequent Treatment ◽  
Dye Solutions
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