Enhancement of H2O2 production and AYR degradation using a synergetic effect of photo-electrocatalysis for carbon nanotube/g-C3N4 electrodes

2018 ◽  
Vol 42 (20) ◽  
pp. 16703-16708 ◽  
Author(s):  
Fangke Yu ◽  
Yi Wang ◽  
Hongrui Ma ◽  
Yang Chen

In this work, a new gas diffusion electrode (GDE) of carbon nanotube/graphitic carbon nitride (CNT/g-C3N4) was prepared, which enables the substantially improved production of H2O2 (up to 1083.54 mg L−1) compared to generation without g-C3N4 (400 mg L−1).

2020 ◽  
Vol 4 (8) ◽  
pp. 4186-4195 ◽  
Author(s):  
Hao-Dong Yang ◽  
Jun-Hao Huang ◽  
Kengo Shibata ◽  
Daling Lu ◽  
Kazuhiko Maeda ◽  
...  

In this study, graphitic carbon nitride (g-C3N4, CN) was decorated with polyaniline (PANI), which was incorporated with inorganic (H2SO4) and organic (5-sulfosalicylic acid, SSA) acids for photocatalytic H2O2 production under simulated solar irradiation.


2019 ◽  
Vol 8 (2) ◽  
pp. 62
Author(s):  
Sheila Moraa Ngare ◽  
Juliet Nzula ◽  
Donde Oscar Omondi

Water is an essential commodity whose quantity and quality needs to be secured for easier accessibility at both the industrial, public and household levels. However, its availability in adequate quality and quantity has continued to decline worldwide. Indeed, rise in human population coupled with the climate change phenomena have greatly impacted on the quality of water resources through increased organic and inorganic pollution. Rhodamine B (RhB) dye is a common organic pollutant majorly in industrial wastewater and with numerous environmental and human health effects. The application of graphitic carbon nitride (G-C3N4) in the purification of industrial wastewater to enhance the removal of RhB is a technology of interest to most environmental quality regulators and agencies. The study was therefore aimed at investigating the performance of graphitic carbon nitride doped with tungsten chloride in the degradation of organic dye pollutant rhodamine B dye from industrial wastewater. The study showed that the as-prepared hybrid photo catalyst exhibits an improved photo degradation performance because of its synergetic effect. Indeed, the photo excited electrons from g-C3N4 were able to efficiently separate and are injected to the conductive band of WO3. The optimum photo activity occurred at the optimum ratio of 0.25WO3/g- C3N4. There was also stability and efficiency within the hybrid catalyst within the photo degradation process. Indeed, the composite indicates a high activity for degradation of RhB under visible light irradiation. The presence of g-C3N4 proved to be beneficial for enhancement in photo catalytic activity of the g-C3N4-WO3 composite and proved to be one of the best alternative modes of n the degrading organic dye pollutant Rhodamine B dye from wastewater.


Author(s):  
Mingran Li ◽  
Xia Qin ◽  
Mingxiao Gao ◽  
Tinghui Li ◽  
Yue Lv

Electro-Fenton (EF) technique has attracted great interests in the treatment of landfill leachate concentrate (LLC). Active carbon fiber (ACF) was modified with graphitic carbon nitride (g-C3N4), carbon nanotubes (CNTs) and...


2017 ◽  
Vol 28 (24) ◽  
pp. 1705232 ◽  
Author(s):  
Eun Jin Son ◽  
Sahng Ha Lee ◽  
Su Keun Kuk ◽  
Milja Pesic ◽  
Da Som Choi ◽  
...  

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