Oxidation of bisoprolol in heated persulfate/H2O systems: Kinetics and products

Ghauch, Antoine; Tuqan, Al Muthanna

doi:10.1016/j.cej.2011.12.048

Cited by 353 publications

(75 citation statements)

References 37 publications

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“…As seen in Table 2, the activation energies for heat-activated PS and heat-activated Fe 0 /PS were estimated to be 120.4 and 36.1 kJ mol -1 , respectively. The calculated activation energy for heat-activated PS was close to those reported for thermally activated PS oxidation of trichloroethylene (108 kJ mol -1 ) (Waldemer et al 2007), bisoprolol (119.8 kJ mol -1 ) (Ghauch and Tuqan 2012), and cis-dichloroethylene (144 kJÁmol -1 ) (Liang et al 2007a, b). The activation energy for diuron degradation by heat-activated PS was 228.8 kJ mol -1 , indicating that APAP was easier to remove than diuron in heat-activated PS system (Tan et al 2012a, b).…”

Section: Effect Of Initial Phsupporting

confidence: 54%

Zero-valent iron/persulfate(Fe0/PS) oxidation acetaminophen in water

Deng

Shao

Gao

et al. 2013

Int. J. Environ. Sci. Technol.

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Section: Effect Of Initial Phsupporting

confidence: 54%

Zero-valent iron/persulfate(Fe0/PS) oxidation acetaminophen in water

Deng

Shao

Gao

et al. 2013

Int. J. Environ. Sci. Technol.

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“…or ibuprofen. 8 Obviously, the more sodium peroxydisulfate is present in the system, the more sulfate radical ions causing degradation of organic compounds are generated. Nevertheless, one should keep in the mind, that too high dose of peroxydisulfate can inhibit decomposition of organic matter.…”

Section: Comparison Of Pentoxifylline Degradation Under Various Procementioning

confidence: 99%

“…There are several methods of activation of peroxydisulfate ions for example: temperature, 8 UV, 9 transition metals, 10 or alkaline pH. 11 In our study SPDS was activated by UV radiation.…”

Section: Introductionmentioning

confidence: 99%

Degradation kinetics and mechanism of pentoxifylline by ultraviolet activated peroxydisulfate

et al. 2018

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Degradation of pentoxifylline (PTX) by sodium peroxydisulfate (SPDS) assisted by UV irradiation has been investigated in deionized water. The treatment was more favorable over direct photolysis or peroxydisulfate oxidation alone. The effects of various parameters, including different dosage of oxidant agent, PTX concentration, initial solution pH levels, and the presence of inorganic ions like chloride, nitrate and carbonate have been evaluated. The rate of PTX decomposition depends on the oxidant agent dose. The highest degradation was determined at pH 10.5, which can be explained by the generation of additional hydroxyl radicals (HOc) in the reaction between sulfate radicals and hydroxide ions. The presence of inorganic ions, especially the carbonate ions quench valuable sulfate radicals and have successfully retarded the PTX decomposition. Six PTX oxidation products were identified using UPLC-QTOF-MS for trials in a basic environment. The main degradation product (3,7-dimethyl-6-(5-oxohexyloxy)-3,7-dihydro-2H-purin-2-one) was isolated by column chromatography and identified by 1 HNMR and LC MS analyzes.

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“…Thermally or UV activated persulfate oxidation reactions generate sulfate radicals SO 4 c À . [9][10][11][12] Nevertheless, higher temperatures or UV lamps caused inconvenience to large-scale and high-chroma sewage systems. 14 and ordered mesoporous frameworks.…”

Section: -8mentioning

confidence: 99%

Activation of persulfate by MMIOC for highly efficient degradation of rhodamine B

Xie

2017

RSC Adv.

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Mesoporous magnetic iron oxide composites (MMIOCs) were successfully prepared using one-step evaporation induced self-assembly using an organic ferrocene surface active agent as the iron source, and innovatively studied as a potential alternative to mesoporous Co 3 O 4 for ammonium persulfate (PS) activation to generate active radicals. MMIOCs were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N 2 adsorption/desorption, transmission electron microscopy (TEM) and using a vibrating sample magnetometer (VSM). Among the different Fe x O y /PS systems tested, the MMIOC displayed the highest catalytic activity for PS activation, achieving almost complete degradation of 1 mM rhodamine B (RhB) within 120 minutes at 0.2 g L À1 catalyst and 40.0 mM PS. The superior catalytic performance of the MMIOC was ascribed to the combination of iron ions inlayed or embedded in the inner or outer surface, forming catalytically active sites and the magnetic mesoporous structure.Several factors played important roles in controlling the degradation of RhB. The equilibrium between Fe(II) and^Fe(III) for PS activation in solution ensured continuous generation of the hydroxyl and sulfate radicals, and the latter made the predominant contribution for RhB degradation. Considering its outstanding catalytic activity, excellent reusability and long-term stability, MMIOC could be an ideal catalyst for the degradation of RhB. These results provide an applied solution for disposing of toxic organic wastewater in a relatively available environment, and a scientific foundation for solving refractory organic contaminant related to environmental management.

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Oxidation of bisoprolol in heated persulfate/H2O systems: Kinetics and products

Cited by 353 publications

References 37 publications

Zero-valent iron/persulfate(Fe0/PS) oxidation acetaminophen in water

Zero-valent iron/persulfate(Fe0/PS) oxidation acetaminophen in water

Degradation kinetics and mechanism of pentoxifylline by ultraviolet activated peroxydisulfate

Activation of persulfate by MMIOC for highly efficient degradation of rhodamine B

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