Combined Catalytic Conversion of NOx and VOCs: Present Status and Prospects DOI Open Access
Mengzhao Li, Rui Wang

Materials, Journal Year: 2024, Volume and Issue: 18(1), P. 39 - 39

Published: Dec. 25, 2024

This article presents a comprehensive examination of the combined catalytic conversion technology for nitrogen oxides (NOx) and volatile organic compounds (VOCs), which are primary factors contributing to formation photochemical smog, ozone, PM2.5. These pollutants present significant threat air quality human health. The examines reaction mechanism interaction between photocatalytic NH3-SCR oxidation technology, highlighting limitations existing techniques, including catalyst deactivation, selectivity issues, regeneration methods, environmental impacts catalysts. Furthermore, anticipates prospective avenues research, underscoring necessity development bifunctional catalysts capable concurrently transforming NOx VOCs across broad temperature spectrum. review encompasses multitude integrated selective reduction (SCR), oxidation, low-temperature plasma biological purification technology. highlights further research into design principles, structure–activity relationships, performance evaluations in real industrial environments. is required develop more efficient, economical, environmentally friendly waste gas treatment technologies. concludes by outlining importance collaborative management strategies VOC emissions potential achieving these goals.

Language: Английский

The resin-supported iron-copper bimetallic composite as highly active heterogeneous Fenton-like catalysts for degradation of gaseous toluene DOI

Zhaohui Du,

Changsong Zhou, Wenjuan Zhang

et al.

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(41), P. 94611 - 94622

Published: Aug. 3, 2023

Language: Английский

Citations

3
Bacterial Sterilization Using Non-Thermal Plasma Method Surface Dielectric Barrier Discharge (SDBD): Effect of Treatment Duration on Colony Count, DNA, Protease Enzymes, and Cell Morphology DOI Creative Commons
Unggul P. Juswono, Dionysius Joseph Djoko Herry Santjojo,

Renaldo Apriandi Kasa

et al.

Trends in Sciences, Journal Year: 2023, Volume and Issue: 20(7), P. 6760 - 6760

Published: March 20, 2023

The ability of Escherichia coli to become increasingly resistant sterilization has resulted in high cases this bacterial infection. To overcome problem, a new method is needed. circuit design uses 2 parallel plates copper material. first plate HV electrode and second ground which separated by dielectric layer. Non-thermal plasma with surface barrier discharge generated using 20 VDC voltage source then transformed into generate plasma. Distance between fixed sample 3 mm. OES used observe reactive species produced indicated magnitude intensity at certain wavelengths. SDBD non-thermal could be inactivate bacteria depending on treatment time. longer time, greater inactivation ability. For the number colonies after being treated for 120 s, namely 4.33×107 CFU/mL, it was much lower than control, 409×107 CFU/ml. DNA results genome from were no visible or faded, marked concentration 8.18 ng/ul, far control 124.44 ng/ul. activity protease enzyme, time variation 105 s had smallest value 35.375 U/mL compared 52.307 whereas cell morphology showed severe damage observed SEM. configurations can kill bacteria. Effectiveness capability also depends nonthermal increases HIGHLIGHTS In research, (SDBD) developed. research that configuration effectiveness GRAPHICAL ABSTRACT

Language: Английский

Citations

2
Degradation of o-dichlorobenzene by DBD-NTP co-modified titanium gel catalyst DOI
Wenbo Zhang, Yi Xing, Wei Su

et al.

Journal of Environmental Sciences, Journal Year: 2023, Volume and Issue: 143, P. 71 - 84

Published: July 29, 2023

Language: Английский

Citations

2
Cycled Storage-Discharge Plasma Catalytic Degradation of Toluene Using Metal Oxide Loaded MS-13X and Glass Beads Packed Bed Dielectric Barrier Discharge Reactor DOI
Savita Kaliya Perumal Veerapandian, Parviz Gohari Derakhshandeh, Karen Leus

et al.

IEEE Transactions on Plasma Science, Journal Year: 2022, Volume and Issue: 50(9), P. 2894 - 2909

Published: Aug. 22, 2022

In this study, a cycled storage-discharge (CSD) plasma catalytic system packed with MOx/MS-13X (M = Cu, Mn, or Cu–Mn) and glass beads was investigated for the abatement of toluene in dry air. The total amount adsorbed toluene, performance MOx/MS-13X, energy cost, yield CSD catalysis process were different metal-loaded MS-13X samples under study. metal loading on enhanced mineralization efficiency reduced cost to remedy 1 m3 air when compared unloaded MS-13X. lowest (0.25 kWh $\cdot \text{m}^{-3}$ ) highest (4.37 g/kWh) obtained using CuMnOx/MS-13X as an adsorbent catalyst. influence initially studied. COx selectivity (82%) adsorption 0.23 mmol/g CuMnOx/MS-13X, which corresponded time 2 h. stability regenerability CuMnOx/ catalyst examined during four cycles by comparing: 1) toluene; 2) breakthrough time; 3) carbon balance; 4) bulk surface properties fresh nonthermal (NTP) regenerated crystallinity, textural properties, elemental composition zeolite, oxidation state metals loaded zeolite did not change upon NTP exposure catalysis. Moreover, work, also showed be successful regeneration toluene.

Language: Английский

Citations

3
Treatment of benzene contaminated gas streams by combining adsorption and electrochemical oxidation processes DOI
Rodrigo de Mello, Artur de Jesus Motheo, Cristina Sáez

et al.

Electrochimica Acta, Journal Year: 2022, Volume and Issue: 434, P. 141336 - 141336

Published: Oct. 10, 2022

Language: Английский

Citations

3
Catalytic Degradation of Ethyl Acetate Over Ni/Nac Monolithic Catalyst at Room-Temperature DOI

Xiangci Wu,

Chenglong Dai, Lisheng Zhang

et al.

Published: Jan. 1, 2024

Ethyl acetate, a typical oxygen-containing volatile organic compounds (OVOCs) pollutant with pungent odor and low toxicity, is still great challenge to catalyze degradation at room temperature. Here, nitrogen-doped activated carbon loading Ni monolithic catalysts prepared by the one-pot impregnation method an annealing temperature of 900°C (Ni/NAC-900) achieved 100% removal ethyl acetate 67.15% CO2 selectivity within 50.5 h 25°C. The result XRD proved contained single atoms NPs, which accounted for 92% total elements. XAFs characterization results showed that active site structure was NiN4C2 coordination structure. Hydroxyl radicals (·OH) converted O2 H2O in air on atomically dispersed catalytic centers resulted breakage C-O bond C-C bond, eventually cause oxidation H2O. findings provide fresh insights into high efficiency, consumption safe manner.

Language: Английский

Citations

0
Combined Catalytic Conversion of NOx and VOCs: Present Status and Prospects DOI Open Access
Mengzhao Li, Rui Wang

Materials, Journal Year: 2024, Volume and Issue: 18(1), P. 39 - 39

Published: Dec. 25, 2024

This article presents a comprehensive examination of the combined catalytic conversion technology for nitrogen oxides (NOx) and volatile organic compounds (VOCs), which are primary factors contributing to formation photochemical smog, ozone, PM2.5. These pollutants present significant threat air quality human health. The examines reaction mechanism interaction between photocatalytic NH3-SCR oxidation technology, highlighting limitations existing techniques, including catalyst deactivation, selectivity issues, regeneration methods, environmental impacts catalysts. Furthermore, anticipates prospective avenues research, underscoring necessity development bifunctional catalysts capable concurrently transforming NOx VOCs across broad temperature spectrum. review encompasses multitude integrated selective reduction (SCR), oxidation, low-temperature plasma biological purification technology. highlights further research into design principles, structure–activity relationships, performance evaluations in real industrial environments. is required develop more efficient, economical, environmentally friendly waste gas treatment technologies. concludes by outlining importance collaborative management strategies VOC emissions potential achieving these goals.

Language: Английский

Citations

0