scholarly journals Degradation of azo dye wastewater by the combination process of 3D BER and CW-MFC

2021 ◽  
Vol 675 (1) ◽  
pp. 012017
Author(s):  
Dengfei Qiu ◽  
Shentan Liu
Keyword(s):  
Azo Dye ◽  
Dye Wastewater ◽  
Combination Process ◽  
Degradation Of Azo Dye

Experimental Research on Degradation of Azo Dye Wasterwater by Photocatalysis of Nano-TiO2 Doped with Ce / Fe

2013 ◽  
Vol 295-298 ◽  
pp. 331-334 ◽  
Author(s):  
Hong Jiao Song ◽  
Lei Zhu ◽  
Xun Wang
Keyword(s):  
Photocatalytic Activity ◽  
Experimental Research ◽  
Azo Dye ◽  
Sol Gel ◽  
Dye Wastewater ◽  
Photogenerated Electrons ◽  
Sol Gel Process ◽  
Degradation Of Azo Dye

The sol-gel process is applied to respectively prepare nano-TiO2films with Ce (cerium) or nano-TiO2films with Fe (ferium), which are used to degradate azo dye wastewater and present their characterization by XRD and HRTEM methods. The results show that proper amount of Ce or Fe doped into the nano-TiO2films can effectively accelerate the separation of photogenerated electrons-holes and easily form lattices, and consequently promotes nano-TiO2films' photocatalytic activity by nearly 20%.

Degradation of Azo Dye Wastewater by UV/TiO2 Combined with an Ultrasonic Procedure

2014 ◽  
Vol 618 ◽  
pp. 164-169
Author(s):  
Yung Hsu Hsieh ◽  
Chen Yu Chang ◽  
Min Wun Chen ◽  
Meng Kuan Shen
Keyword(s):  
Hydrogen Peroxide ◽  
Azo Dye ◽  
Degradation Rate ◽  
Experimental Results ◽  
Additive Effects ◽  
Iron Ions ◽  
Dye Wastewater ◽  
Fe Ions ◽  
Degradation Of Azo Dye

The study combines the UV/TiO2and an ultrasonic procedure to degrade the azo dye wastewater of Acid Yellow 17 and investigates the effects of various factors including the quantities of TiO2and iron ions added on the efficiency of the removal of the azo dye wastewater of Acid Yellow 17. The experimental results reveal the a significant additive effects occurs through the combination of the two procedures under the 13 watts UV irradiations and 10 watts ultrasound. The analysis of the catalyst properties indicates that there are no evident changes of the appearance of the crystal and TiO2catalyst when UV/TiO2is combined with ultrasonic procedures. Since the formation of hydrogen peroxide (ND≦1 mg L-1) was not detected during the reactions, the additions of Fe (II) and Fe (III) are unable to induce the Fenton-like reaction effectively. Nevertheless, the additions of Fe ions significantly affect the degradation rate of the dye. Moreover, the effect of Fe (III) was found to be superior to that of Fe (II) under the same concentration.

scholarly journals Nickel-foam-supported β-Ni(OH)2 as a green anodic catalyst for energy efficient electrooxidative degradation of azo-dye wastewater

RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19776-19785 ◽  
Author(s):  
Shan Sun ◽  
Peng Diao ◽  
Cuiyun Feng ◽  
Eleonora-Mihaela Ungureanu ◽  
Yi Tang ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Energy Efficient ◽  
Azo Dye ◽  
Nickel Foam ◽  
Dye Wastewater ◽  
Electrochemical Degradation ◽  
Facile Hydrothermal Method ◽  
Anodic Catalyst ◽  
Degradation Of Methyl Orange ◽  
Degradation Of Azo Dye

A novel NF/β-Ni(OH)2 catalyst for energy efficient electrochemical degradation of methyl orange was fabricated via a facile hydrothermal method.

scholarly journals Degradation of azo dye with activated peroxygens: when zero-valent iron meets chloride

RSC Advances ◽  
2017 ◽  
Vol 7 (49) ◽  
pp. 30941-30948 ◽  
Author(s):  
Zhaohui Wang ◽  
Luoyan Ai ◽  
Ying Huang ◽  
Juekai Zhang ◽  
Sitong Li ◽  
...  
Keyword(s):  
Azo Dye ◽  
Zero Valent Iron ◽  
Dye Wastewater ◽  
Oxidation Technology ◽  
Degradation Of Azo Dye ◽  
Selection Of

Selection of the most appropriate Fe-based peroxygen oxidation technology depends on the dye wastewater constituents and pH.

Degradation of Azo Dye C.I. Reactive Blue 194 in Water by Sponge Iron in the Presence of Ultrasound

2014 ◽  
Vol 31 (10) ◽  
pp. 541-547 ◽  
Author(s):  
Yan Liu ◽  
Xi-Kui Wang ◽  
Bing Chen ◽  
Chen Wang ◽  
Ting-Ting Shen
Keyword(s):  
Azo Dye ◽  
Sponge Iron ◽  
Degradation Of Azo Dye
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