Degradation of spiramycin by thermally activated peroxydisulfate: Kinetics study, oxidation products and acute toxicity

Wang, Gang; Wang, Peng; Liu, Huiling; Wang, Jing; Dai, Xiaohu; Xin, Yanjun

doi:10.1016/j.cej.2020.127255

Cited by 23 publications

(4 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, it was found that there was a good linear relationship between the natural log of k obs and the reciprocal of the thermodynamic temperature (Figure S18). The apparent activation energy ( E a ) was then calculated as 0.34 kJ mol –1 according to the Arrhenius equation, which was far lower than that of heat-activated PDS (above 85.00 kJ mol –1 ). , The result further demonstrated that the acceleration of the reaction between PDS and ABTS to form reactive species was the major cause for the improvement of DCF degradation with increasing reaction temperature in the PDS/ABTS system.…”

Section: Resultsmentioning

confidence: 94%

“…The apparent activation energy (E a ) was then calculated as 0.34 kJ mol −1 according to the Arrhenius equation, which was far lower than that of heat-activated PDS (above 85.00 kJ mol −1 ). 7,55 The result further demonstrated that the acceleration of the reaction between PDS and ABTS to form reactive species was the major cause for the improvement of DCF degradation with increasing reaction temperature in the PDS/ABTS system. Anti-interference Capacity of the PDS/ABTS System.…”

Section: •−mentioning

confidence: 87%

See 1 more Smart Citation

ABTS as Both Activator and Electron Shuttle to Activate Persulfate for Diclofenac Degradation: Formation and Contributions of ABTS^•+, SO₄^•–, and ^•OH

Huang

Zou

Lin

et al. 2022

Environ. Sci. Technol.

View full text Add to dashboard Cite

The activation of peroxydisulfate (PDS) by organic compounds has attracted increasing attention. However, some inherent drawbacks including quick activator decomposition and poor anti-interference capacity limited the application of organic compound-activated PDS. It was interestingly found that 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonate) (ABTS) could act as both activator and electron shuttle for PDS activation to enhance diclofenac (DCF) degradation over a pH range of 2.0–11.0. Multiple reactive species of ABTS•+, •OH, and SO4 •– were generated in the PDS/ABTS system, while only ABTS•+ and •OH directly contributed to DCF degradation. ABTS•+, generated via the reactions of ABTS with PDS, SO4 •–, and •OH, was the dominant reactive species of DCF degradation. No significant decomposition of ABTS was observed in the PDS/ABTS system, and ABTS acted as both activator and electron shuttle. Four possible degradation pathways of DCF were proposed, and the toxicity of DCF decreased after treatment with the PDS/ABTS system. The PDS/ABTS system had good anti-interference capacity to common natural water constituents. Additionally, ABTS was encapsulated into cellulose to obtain ABTS@Ce beads, and the PDS/ABTS@Ce system possessed excellent performance on DCF degradation. This study proposes a new perspective to reconsider the mechanism of activating PDS with organic compounds and highlights the considerable contribution of organic radicals on contaminant removal.

show abstract

Section: Resultsmentioning

confidence: 94%

Section: •−mentioning

confidence: 87%

ABTS as Both Activator and Electron Shuttle to Activate Persulfate for Diclofenac Degradation: Formation and Contributions of ABTS^•+, SO₄^•–, and ^•OH

Huang

Zou

Lin

et al. 2022

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Advanced oxidation processes (AOPs) have been reported to effectively degrade an array of recalcitrant organic pollutants via highly reactive oxidants such as hydroxyl radical (•OH) and sulfate radical (SO •− 4 ) [14][15][16][17], among which, SO •− 4 -based AOPs have recently attracted tremendous attention due to their strong oxidation ability and wide reaction pH range [18]. SO •− 4 can be generated from persulfate anion (S 2 O 2− 8 ), as reported in many successful applications of the peroxydisulfate (PDS)-based oxidation process once activated by light, metal ion, or heat [15,19,20].…”

Section: Introductionmentioning

confidence: 99%

“…SO •− 4 can be generated from persulfate anion (S 2 O 2− 8 ), as reported in many successful applications of the peroxydisulfate (PDS)-based oxidation process once activated by light, metal ion, or heat [15,19,20]. Then, in principle, persulfates could be a suitable candidate to be integrated with MD, where the temperature of the feed solution, usually kept at 40-100 • C, could serve as an existing activator for the generation of SO •− 4 [15,18]. The degradation of surfactants using AOPs, especially to mitigate membrane wetting in the MD process, has rarely been investigated.…”

Section: Introductionmentioning

confidence: 99%

Membrane Distillation Hybrid Peroxydisulfate Activation toward Mitigating the Membrane Wetting by Sodium Dodecyl Sulfate

et al. 2022

View full text Add to dashboard Cite

The fouling/wetting of hydrophobic membrane caused by organic substances with low-surface energy substantially limits the development of the membrane distillation (MD) process. The sulfate radical ()-based advanced oxidation process (AOP) has been a promising technology to degrade organics in wastewater treatment, and peroxydisulfate (PDS) could be efficiently activated by heat. Thus, a hybrid process of MD-AOP via PDS activated by a hot feed was hypothesized to mitigate membrane fouling/wetting. Experiments dealing with sodium dodecyl sulfate (SDS) containing a salty solution via two commercial membranes (PVDF and PTFE) were performed, and varying membrane wetting extents in the coupling process were discussed at different PDS concentrations and feed temperatures. Our results demonstrated permeate flux decline and a rise in conductivity due to membrane wetting by SDS, which was efficiently alleviated in the hybrid process rather than the standalone MD process. Moreover, such a mitigation was enhanced by a higher PDS concentration up to 5 mM and higher feed temperature. In addition, qualitative characterization on membrane coupons wetted by SDS was successfully performed using electrochemical impedance spectroscopy (EIS). The EIS results implied both types of hydrophobic membranes were protected from losing their hydrophobicity in the presence of PDS activation, agreeing with our initial hypothesis. This work could provide insight into future fouling/wetting control strategies for hydrophobic membranes and facilitate the development of an MD process.

show abstract

Electrochemical activation of peroxydisulfate for tetracycline degradation using the PCN-224(Fe)@PIL(Cl−) System

Li,

Ma,

Zhang

et al. 2024

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Degradation of spiramycin by thermally activated peroxydisulfate: Kinetics study, oxidation products and acute toxicity

Cited by 23 publications

References 52 publications

ABTS as Both Activator and Electron Shuttle to Activate Persulfate for Diclofenac Degradation: Formation and Contributions of ABTS^•+, SO₄^•–, and ^•OH

ABTS as Both Activator and Electron Shuttle to Activate Persulfate for Diclofenac Degradation: Formation and Contributions of ABTS^•+, SO₄^•–, and ^•OH

Membrane Distillation Hybrid Peroxydisulfate Activation toward Mitigating the Membrane Wetting by Sodium Dodecyl Sulfate

Electrochemical activation of peroxydisulfate for tetracycline degradation using the PCN-224(Fe)@PIL(Cl−) System

Contact Info

Product

Resources

About

Degradation of spiramycin by thermally activated peroxydisulfate: Kinetics study, oxidation products and acute toxicity

Cited by 23 publications

References 52 publications

ABTS as Both Activator and Electron Shuttle to Activate Persulfate for Diclofenac Degradation: Formation and Contributions of ABTS•+, SO4•–, and •OH

ABTS as Both Activator and Electron Shuttle to Activate Persulfate for Diclofenac Degradation: Formation and Contributions of ABTS•+, SO4•–, and •OH

Membrane Distillation Hybrid Peroxydisulfate Activation toward Mitigating the Membrane Wetting by Sodium Dodecyl Sulfate

Electrochemical activation of peroxydisulfate for tetracycline degradation using the PCN-224(Fe)@PIL(Cl−) System

Contact Info

Product

Resources

About

ABTS as Both Activator and Electron Shuttle to Activate Persulfate for Diclofenac Degradation: Formation and Contributions of ABTS^•+, SO₄^•–, and ^•OH

ABTS as Both Activator and Electron Shuttle to Activate Persulfate for Diclofenac Degradation: Formation and Contributions of ABTS^•+, SO₄^•–, and ^•OH