Application of non-thermal plasma reactor and Fenton reaction for degradation of ibuprofen

Marković, Marijana; Jović, Milica; Stanković, Dalibor M.; Kovačević, Vladimir; Roglić, Goran; Gojgić-Cvijović, Gordana; Manojlović, Dragan

doi:10.1016/j.scitotenv.2014.11.017

Cited by 107 publications

(49 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6A): first a fast oxidation yielding up to 60% conversion of IBP within 5 min; then, a much slower degradation rate until the end of the reaction, which cannot be fitted either with first or second order kinetics. This behavior is consistent with that reported in previous studies on homogeneous Fenton oxidation of IBP [50,51]. At higher iron concentration (0.5-1 mM Fe), the authors observed 90% of IBP degradation in the first 5 min.…”

Section: Effect Of Fenton's Reagent Concentration and 20 Khz Ussupporting

confidence: 92%

Sonolysis and sono-Fenton oxidation for removal of ibuprofen in (waste)water

Adityosulindro

Barthe

González-Labrada

et al. 2017

Ultrasonics Sonochemistry

148

View full text Add to dashboard Cite

Two sonochemical processes were compared for the removal of ibuprofen in different water matrixes (distilled water and effluent from wastewater treatment plant). The effect of various operating parameters, such as pH (2.6-8.0), ultrasound power density (25-100W/L), sonication frequency (12-862kHz), addition of radical promoters (HO and Fenton's reagent) or scavengers (n-butanol and acetic acid), was evaluated. Sono-degradation of ibuprofen followed a first-order kinetic trend, whose rate constant increased with ultrasound density and frequency. For this hydrophobic and low volatile molecule, a free-radical mechanism at the bubble interface was established. Coupling ultrasound with Fenton reaction showed a positive synergy, especially in terms of mineralization yield, while adding HO alone had no significant beneficial effect. Dedicated experiments proved this synergy to be due to the enhanced regeneration of ferrous ions by ultrasound. Efficacy of the sonolysis process was hampered in wastewater matrix, mainly as the consequence of higher pH increasing the molecule solubility. However, after convenient acidification, sono-Fenton oxidation results remained almost unchanged, indicating no significant radical scavenging effects from the effluent compounds.

show abstract

Section: Effect Of Fenton's Reagent Concentration and 20 Khz Ussupporting

confidence: 92%

Sonolysis and sono-Fenton oxidation for removal of ibuprofen in (waste)water

Adityosulindro

Barthe

González-Labrada

et al. 2017

Ultrasonics Sonochemistry

148

View full text Add to dashboard Cite

show abstract

“…In Figure 4, the solid lines show the PTR-TOFMS measurement results obtained using Equation (7). It is clear that there are reasonable agreements when the NTP power is 9.1, 15.5, or 20.3 W, and the average deviation is only 4% and, thus, within an acceptable range.…”

Section: Quantitative Methods Modification For Ptr-tof-ms In the Prementioning

confidence: 82%

“…Some VOCs are very hazardous to human health and the environment . Current available techniques for VOC removal from air are UV/O 3 , electron beam, photocatalytic oxidation, biofiltration, and the Fenton reaction . In the last 2 decades, nonthermal plasma (NTP) has been developed into an alternative technique for the treatment of polluted air streams containing VOCs, especially for low concentration hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Application of proton transfer reaction mass spectrometry for the assessment of toluene removal in a nonthermal plasma reactor

Peng

Zhu

et al. 2018

J Mass Spectrom

View full text Add to dashboard Cite

Proton transfer reaction mass spectrometry (PTR-MS) is a mature technique for the real-time measurement and monitoring of volatile organic compounds in the atmosphere. In this paper, a modified quantification method for PTR-MS was used to assess the performance of nonthermal plasma (NTP) reactor for the removal of toluene which was widely used in industrial production processes. Toluene and 11 corresponding organic by-products were tentatively identified and quantified by a proton transfer reaction time-of-flight mass spectrometer. The degradation dynamics of toluene and the formation of organic by-products were monitored in real-time (resolution = 1 second) under "plasma off" and "plasma on" conditions. We conclude that initial concentration and gas flow rate were the key parameters in the health risk assessment of NTP for the removal of toluene. The toluene removal efficiency and CO selectivity decreased with increasing upstream toluene concentration or gas flow rate, whereas the health risk influence index increased with increasing upstream toluene concentration or gas flow rate. The highest removal efficiency of toluene (100%), CO selectivity (53.2%), and the best health risk influence index for organic by-products (0.11) were achieved when the toluene concentration was kept at 105 ppmv and flow rate at 0.4 L/minute. The results demonstrate that PTR-MS is a promising tool to improve the practical applications of volatile organic compound removal by NTP because it can be used to optimize the NTP working conditions by providing a precise, fast, and clear health risk assessment for organic by-products based on their real-time analysis.

show abstract

“…Subsequently, the combination of H 2 O 2 and ferrous salts was called Fenton's reagent. The principle was to use Fe 2+ to catalyze H 2 O 2 to produce highly oxidizing ⋅OH [Equations (1)–(8)] to degrade organic pollutants . Fenton reagent has the characteristics of non‐selective oxidation of toxic and refractory organic pollutants.…”

Section: Strategies For Improving the Photocatalytic Performance Of Mofsmentioning

confidence: 99%

Strategies for Improving the Performance and Application of MOFs Photocatalysts

Luo

Wu³

et al. 2019

ChemCatChem

View full text Add to dashboard Cite

Residual pollutants in the water treatment process restrict the advanced treatment and purification of wastewater, because most of them have stable structures, and some are not easily to be enriched. Photocatalytic oxidation technology can directly use solar energy to drive a series of chemical reactions, which has advantages such as low energy consumption, mild reaction conditions and rarely secondary pollution. It is an effective way to solve the organic pollution problem in wastewater treatment. The key to this process is to find and design efficient photocatalysts. The current photocatalytic materials mainly include inorganic semiconductors and metal organic frameworks (MOFs). They have been studied for pollutants degradation, hydrogen evolution, CO2 reduction, and organic transformation. But, most of these catalysts have not been used in real application. In this paper, recent research advances in MOFs photocatalysts and the key factors affecting their photocatalytic efficiency were critically reviewed. It is believed that the pursuit of more efficient photocatalyst needs to be considered from the adsorption‐photocatalytic mechanism, redox‐free radical mechanism, valence‐level regulation mechanism and energy transfer mechanism of photocatalysis. It is very necessary to research and develop nanoscale and quantum level mixed valence MOFs photocatalysts, which are constructed by strong electron‐donating groups.

show abstract

Application of non-thermal plasma reactor and Fenton reaction for degradation of ibuprofen

Cited by 107 publications

References 41 publications

Sonolysis and sono-Fenton oxidation for removal of ibuprofen in (waste)water

Sonolysis and sono-Fenton oxidation for removal of ibuprofen in (waste)water

Application of proton transfer reaction mass spectrometry for the assessment of toluene removal in a nonthermal plasma reactor

Strategies for Improving the Performance and Application of MOFs Photocatalysts

Contact Info

Product

Resources

About