scholarly journals Grafted iron(iii) ions significantly enhance NO2 oxidation rate and selectivity of TiO2 for photocatalytic NOx abatement

RSC Advances ◽  
2018 ◽  
Vol 8 (49) ◽  
pp. 27674-27685 ◽  
Author(s):  
Julia Patzsch ◽  
Jacob N. Spencer ◽  
Andrea Folli ◽  
Jonathan Z. Bloh
Keyword(s):  
Oxidation Rate ◽  
Photocatalytic Oxidation ◽  
Iron Ions ◽  
Nox Abatement ◽  
Oxidation Of No ◽  
No2 Oxidation

By grafting small amounts of iron ions onto TiO2, the rate of photocatalytic oxidation of NO2 is increased by a factor of 9.

scholarly journals Research Progress on Photocatalytic/Photoelectrocatalytic Oxidation of Nitrogen Oxides

2021 ◽  
Author(s):  
Shuangjun Li ◽  
Linglong Chen ◽  
Zhong Ma ◽  
Guisheng Li ◽  
Dieqing Zhang
Keyword(s):  
Nitrogen Oxides ◽  
Photocatalytic Oxidation ◽  
Research Progress ◽  
Future Directions ◽  
Inorganic Semiconductors ◽  
Photoelectrocatalytic Oxidation ◽  
Low Concentrations ◽  
Photocatalytic System ◽  
Metal Organic ◽  
Oxidation Of No

AbstractThe emission of nitrogen oxides (NOx) increases year by year, causing serious problems to our livelihoods. The photocatalytic oxidation of NOx has attracted more attention recently because of its efficient removal of NOx, especially for low concentrations of NOx. In this review, the mechanism of the photocatalytic oxidation of NOx is described. Then, the recent progress on the development of photocatalysts is reviewed according to the categories of inorganic semiconductors, bismuth-based compounds, nitrogen carbide polymer, and metal organic frameworks (MOFs). In addition, the photoelectrocatalytic oxidation of NOx, a method involving the application of an external voltage on the photocatalytic system to further increase the removal efficiency of NOx, and its progress are summarized. Finally, we outline the remaining challenges and provide our perspectives on the future directions for the photocatalytic oxidation of NOx.

Gas-phase photocatalytic oxidation of NO over palladium modified TiO2 catalysts

2008 ◽  
Vol 9 (9) ◽  
pp. 1941-1944 ◽  
Author(s):  
Zhongyi Sheng ◽  
Zhongbiao Wu ◽  
Yue Liu ◽  
Haiqiang Wang
Keyword(s):  
Gas Phase ◽  
Photocatalytic Oxidation ◽  
Oxidation Of No

Doped and undoped anatase-based plates obtained from paper templates for photocatalytic oxidation of NO

2016 ◽  
Vol 42 (10) ◽  
pp. 12074-12083 ◽  
Author(s):  
Siara Silvestri ◽  
Bruno Szpoganicz ◽  
Juliana Schultz ◽  
Antonio S. Mangrich ◽  
Dachamir Hotza ◽  
...  
Keyword(s):  
Photocatalytic Oxidation ◽  
Oxidation Of No

From semiconductors to semimetals: bismuth as a photocatalyst for NO oxidation in air

2014 ◽  
Vol 2 (29) ◽  
pp. 11065-11072 ◽  
Author(s):  
Qian Zhang ◽  
Ying Zhou ◽  
Fang Wang ◽  
Fan Dong ◽  
Wei Li ◽  
...  
Keyword(s):  
Indoor Air ◽  
Photocatalytic Oxidation ◽  
No Oxidation ◽  
Oxidation In Air ◽  
Oxidation Of No

Black semimetallic Bi films were found to be active in the photocatalytic oxidation of NO at the indoor air level.

Non-noble metal plasmonic photocatalysis in semimetal bismuth films for photocatalytic NO oxidation

2017 ◽  
Vol 19 (37) ◽  
pp. 25610-25616 ◽  
Author(s):  
Ying Zhou ◽  
Wei Li ◽  
Qian Zhang ◽  
Shuai Yan ◽  
Yuehan Cao ◽  
...  
Keyword(s):  
Energy Barrier ◽  
Photocatalytic Oxidation ◽  
Field Enhancement ◽  
Low Energy ◽  
No Oxidation ◽  
Strongly Correlated ◽  
Desorption Energy ◽  
Plasmonic Resonance ◽  
Bismuth Films ◽  
Oxidation Of No

Field enhancement and location of plasmonic resonance peaks are strongly correlated with the size of Bi particles. The low energy barrier for the conversion of NO to NO2 and low NO2 desorption energy over Bi particles indicate that Bi films are very active for photocatalytic oxidation of NO and possess good stability.

The influence of plasma of crown discharge and ozone on the rate of photocatalytic oxidation of acetone and benzene vapors

2019 ◽  
Vol 19 (5) ◽  
pp. 391-398
Author(s):  
E. A. Gusachenko ◽  
M. N. Lyulyukin ◽  
D. V. Kozlov
Keyword(s):  
Ir Spectroscopy ◽  
Oxidation Rate ◽  
Photocatalytic Oxidation ◽  
Discharge Plasma ◽  
Considerable Proportion ◽  
Gas Mixture ◽  
In Situ Ir ◽  
Uv Lamp ◽  
In Situ Ir Spectroscopy

The influence of negatively polar plasma of crown discharge on the rate of photocatalytic oxidation (PCO) of vapors of acetone and benzene was investigated by studying dynamics of changes in the composition of gas-air mixture in a 404 L reactor using in-situ IR spectroscopy. Titanium (Hombifine N) was used as the photocatalyst; it was lighted with a UV-lamp at the wavelength λ = 365 nm. The rate of the photocatalytic oxidation of the substrate vapor was compared to the oxidation rate in crown discharge plasma, to the rate of dark oxidation with ozone (side product of the discharge burning), to the rate of photocatalytic oxidation in the presence of ozone, as well as to the rate of the photocatalytic oxidation under medium treatment with the crown discharge plasma. The rate of oxidation of various substrates was shown to be much lower in individual plasma and in ozone-containing atmosphere than in photocatalytic oxidation but application of the crown discharge led to an increase in the rate of photocatalytic oxidation and in the rate of oxidation in ozone-containing atmosphere. Under the action of the discharge, ozone was not accumulated in considerable proportion in the gas mixture but after consumption of 80–90 % of the oxidized substrate. The order of acetone PCO with respect to ozone was determined. It was shown that the action of plasma allowed benzene PCO to be noticeably accelerated due to considerable depression of the photocatalyst deactivation compared to that during individual PCO of benzene.

Fe 1 /TiO 2 Hollow Microspheres: Fe and Ti Dual Active Sites Boosting the Photocatalytic Oxidation of NO

Small ◽  
2020 ◽  
Vol 16 (47) ◽  
pp. 2004583
Author(s):  
Zhao Hu ◽  
Xiaofang Li ◽  
Sushu Zhang ◽  
Qin Li ◽  
Jiajie Fan ◽  
...  
Keyword(s):  
Active Sites ◽  
Photocatalytic Oxidation ◽  
Hollow Microspheres ◽  
Oxidation Of No
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