Highly efficient simulated solar-light photocatalytic oxidation of gaseous NO with porous carbon nitride from copolymerization with thymine and mechanistic analysis

RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101208-101215 ◽  
Author(s):  
Shipeng Wan ◽  
Qin Zhong ◽  
Man Ou ◽  
Shule Zhang
Keyword(s):  
Porous Carbon ◽  
Photocatalytic Oxidation ◽  
Carbon Nitride ◽  
Solar Light ◽  
Simulated Solar Light ◽  
Highly Efficient ◽  
Mechanistic Analysis

scholarly journals Experimental and Computational Analysis of NOx Photocatalytic Abatement Using Carbon-Modified TiO2 Materials

Catalysts ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1366
Author(s):  
Tatiana Zhiltsova. ◽  
Nelson Martins ◽  
Mariana R. F. Silva ◽  
Carla F. Da Silva ◽  
Mirtha A. O. Lourenço ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Kinetic Model ◽  
Photocatalytic Oxidation ◽  
Cfd Simulation ◽  
Emission Spectra ◽  
Chemical Kinetic ◽  
Solar Light ◽  
Model Parameters ◽  
Chemical Kinetic Model ◽  
Simulated Solar Light

In the present study, two photocatalytic graphene oxide (GO) and carbon nanotubes (CNT) modified TiO2 materials thermally treated at 300 °C (T300_GO and T300_CNT, respectively) were tested and revealed their conversion efficiency of nitrogen oxides (NOx) under simulated solar light, showing slightly better results when compared with the commercial Degussa P25 material at the initial concentration of NOx of 200 ppb. A chemical kinetic model based on the Langmuir–Hinshelwood (L-H) mechanism was employed to simulate micropollutant abatement. Modeling of the fluid dynamics and photocatalytic oxidation (PCO) kinetics was accomplished with computational fluid dynamics (CFD) approach for modeling single-phase liquid fluid flow (air/NOx mixture) with an isothermal heterogeneous surface reaction. A tuning methodology based on an extensive CFD simulation procedure was applied to adjust the kinetic model parameters toward a better correspondence between simulated and experimentally obtained data. The kinetic simulations of heterogeneous photo-oxidation of NOx carried out with the optimized parameters demonstrated a high degree of matching with the experimentally obtained NOx conversion. T300_CNT is the most active photolytic material with a degradation rate of 62.1%, followed by P25-61.4% and T300_GO-60.4%, when irradiated, for 30 min, with emission spectra similar to solar light.

Hollow porous carbon nitride immobilized on carbonized nanofibers for highly efficient visible light photocatalytic removal of NO

Nanoscale ◽  
2016 ◽  
Vol 8 (23) ◽  
pp. 12066-12072 ◽  
Author(s):  
Hongxin Wu ◽  
Dongyun Chen ◽  
Najun Li ◽  
Qingfeng Xu ◽  
Hua Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Porous Carbon ◽  
Carbon Nitride ◽  
Highly Efficient ◽  
Photocatalytic Removal ◽  
Visible Light Photocatalytic

Mechanisms for Highly Efficient Mineralization of Bisphenol A by Heterostructured Ag2WO4/Ag3PO4 under Simulated Solar Light

2019 ◽  
Vol 7 (4) ◽  
pp. 4177-4185 ◽  
Author(s):  
Tengfei Li ◽  
Haoran Wei ◽  
Hanzhong Jia ◽  
Tianjiao Xia ◽  
Xuetao Guo ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Solar Light ◽  
Simulated Solar Light ◽  
Highly Efficient
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