Effect of operating parameters on microwave assisted photocatalytic degradation of azo dye X-3B with grain TiO2 catalyst

2005 ◽  
Vol 237 (1-2) ◽  
pp. 199-205 ◽  
Author(s):  
Xiwang Zhang ◽  
Yizhong Wang ◽  
Guoting Li
Keyword(s):  
Photocatalytic Degradation ◽  
Azo Dye ◽  
Operating Parameters ◽  
Tio2 Catalyst ◽  
Microwave Assisted ◽  
Degradation Of Azo Dye

Fabrication of a novel ZnO/MMO/CNT nanohybrid derived from multi-cationic layered double hydroxide for photocatalytic degradation of azo dye under visible light

RSC Advances ◽  
2015 ◽  
Vol 5 (25) ◽  
pp. 19675-19685 ◽  
Author(s):  
Fatemeh Khodam ◽  
Zolfaghar Rezvani ◽  
Ali Reza Amani-Ghadim
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Layered Double Hydroxide ◽  
Azo Dye ◽  
Double Hydroxide ◽  
Degradation Of Azo Dye

A facile and effective approach for assembling ZnO/MMO/CNT nanohybrid with excellent photodegradation performance under visible light is reported.

Photocatalytic degradation of azo dye in TiO2 suspended solution

2001 ◽  
Vol 43 (2) ◽  
pp. 313-320 ◽  
Author(s):  
C.-H. Hung ◽  
P.-C. Chiang ◽  
C. Yuan ◽  
C.-Y. Chou
Keyword(s):  
Reaction Time ◽  
Light Intensity ◽  
Photocatalytic Degradation ◽  
Azo Dye ◽  
Batch Reactor ◽  
Reaction Rates ◽  
Pseudo First Order Reaction ◽  
Degradation Rates ◽  
Orange G ◽  
Degradation Of Azo Dye

The photocatalysis of azo dye, Orange G, by P-25 anatase TiO2 was investigated in this research. The experiments were conducted in a batch reactor with TiO2 powder suspension. Four near-UV lamps were used as the light source. The experimental variables included solution pH level, amount of TiO2, illumination light intensity, and reaction time. A pseudo-first order reaction kinetic was proposed to simulate the photocatalytic degradation of Orange G in the batch reactor. More than 80% of 10 mg/L Orange G decomposition in 60-minute reaction time was observed in this study and fast decomposition of Orange G only occurred in the presence of both TiO2 and suitable light energy. Faster degradation of Orange G was achieved under acid conditions. The degradation rates of Orange G at pH = 3.0 were about two times faster than those at pH = 7.0. Faster degradation of azo dye was observed for greater irradiated light intensity and more TiO present during the reaction. The reaction rates were proportional to TiO2concentration and light intensity with the power order of 0.726 and 0.734, respectively.

Photocatalytic degradation of azo dye using core@shell nano-TiO2 particles to reduce toxicity

2018 ◽  
Vol 25 (29) ◽  
pp. 29493-29504 ◽  
Author(s):  
Nesrin Ozmen ◽  
Sema Erdemoglu ◽  
Abbas Gungordu ◽  
Meltem Asilturk ◽  
Duygu Ozhan Turhan ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Azo Dye ◽  
Core Shell ◽  
Nano Tio2 ◽  
Tio2 Particles ◽  
Degradation Of Azo Dye
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