Ibuprofen removal by heated persulfate in aqueous solution: A kinetics study

Ghauch, Antoine; Tuqan, Al Muthanna; Kibbi, Nadine

doi:10.1016/j.cej.2012.05.051

Cited by 300 publications

(83 citation statements)

References 41 publications

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“…Ghauch et al [2012a] reported that the optimum pH for ibuprofen thermal oxidation is pH = 7.0 followed by pH = 9.0 and pH = 4.0. On the other hand, the same authors [Ghauch et al 2012b] reported that the least efficient system for methylene blue degradation is the one under basic conditions, whereas at neutral (pH 7.0) and acidic pH (pH 4.0), the oxidation process is more effective.…”

Section: Effect Of Initial Phmentioning

confidence: 99%

“…Persulfate salts have been applied as oxidants for the degradation of various organic compounds including polyvinyl alcohol [Oh et al 2009], trichloroethylene [Liang et al 2007], methyl tert-butyl ether [Huang et al 2002, Liang et al 2010], phenol [Mora et al 2011, Olmez-Hanci and Arslan-Alaton 2013], bisphenol A [Jiang et al 2013, Olmez-Hanci et al 2013], 2,4-dinitrotoluene [Oh et al 2011], p-chloroaniline [Liang et al 2013], ibuprofen [Ghauch et al 2012a], polychlorinated biphenyls [Fang et al 2013], dyes [Yang et al 2010, Ghauch et al 2012b], and some pesticides [Cao et Persulfate salts (e.g. sodium, potassium or ammonium persulfate) dissociate in water to the persulfate anion S 2 O 8 2-.…”

mentioning

confidence: 99%

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Oxidative Degradation of 2-Chlorophenol by Persulfate

Kuśmierek¹,

Świątkowski²,

Dąbek³

2015

J. Ecol. Eng.

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Section: Effect Of Initial Phmentioning

confidence: 99%

mentioning

confidence: 99%

Oxidative Degradation of 2-Chlorophenol by Persulfate

Kuśmierek¹,

Świątkowski²,

Dąbek³

2015

J. Ecol. Eng.

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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%

“…As shown, the increase of reaction temperature accelerates the degradation ratio of the RhB, which could be caused by rapid breakdown of PS into cOH or SO 4 c À under thermal activation. [9][10][11]61 Moreover, the systems could cross reaction energy barrier easily at higher temperature.…”

Section: -59mentioning

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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“…Heat-activated persulfate was considered as a prominent method, especially after some projects had been intensively studied and applied for the detoxification of numeral organic pollutants in contaminated sites (Deng et al, 2014;Ghauch et al, 2012). Suggested temperature for this method has been experimentally shown to be in the range of 35-130°C (Tsitonaki et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Removal of polycyclic aromatic hydrocarbons from sediments using sodium persulfate activated by temperature and nanoscale zero-valent iron

Chen

Bình

Chen

et al. 2014

Journal of the Air & Waste Management Association

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, and temperature (50-70°C) were performed. The efficiency to remove PAHs was 10.7-39.1% for unactivated persulfate. The treated sample had over 50% of the persulfate still remaining from an initial persulfate dose of 170 g/L, whereas less than 1% of the persulfate remained from an initial persulfate dose of 0.017, 0.17, and 1.7 g/L. Adequate persulfate (170 g/L) must be present because it is the source of the sulfate radicals responsible for the degradation of PAHs. Results indicated that increasing temperature and the addition of nZVI into a persulfate-slurry system could enhance the persulfate oxidation process. The best removal efficiency (90%) was achieved after 24 hr while adding nZVI (0.01 g/L) to persulfate (170 g/L) at temperature of 70°C. The results suggested that nZVI assisted persulfate oxidation without elevating temperature may be a suitable and economic alternative for the ex situ treatment of PAH-contaminated sediments.Implications: Nano zero-valent iron (nZVI) has been successfully applied to transform/degrade contaminants in soils and water. Additionally, nZVI has been used as a catalyst to activate persulfate for the treatment of various contaminants. In this study, with the support of temperature, nZVI-persulfate oxidation system for treatment of PAH-contaminated sediments was improved significantly and the treated sediment could meet remediation goals.

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Ibuprofen removal by heated persulfate in aqueous solution: A kinetics study

Cited by 300 publications

References 41 publications

Oxidative Degradation of 2-Chlorophenol by Persulfate

Oxidative Degradation of 2-Chlorophenol by Persulfate

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

Removal of polycyclic aromatic hydrocarbons from sediments using sodium persulfate activated by temperature and nanoscale zero-valent iron

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