Reaction kinetics and oxidation product formation in the degradation of acetaminophen by ferrate (VI)

Hong-Yu Wang, YB Liu, JiaQian Jiang

Research output: Contribution to journalArticle

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Abstract

This paper investigates the degradation of acetaminophen (AAP) in aqueous solutions by ferrate (VI), aiming to propose the kinetics, pathways and the oxidation products’ formation in the AAP degradation. A series of jar tests were undertaken over ferrate (VI) dosages (molar ratios of ferrate (VI):AAP, 5:1 to 25:1) and pH values (4–11). The effects of co-existing ions (0.2–5 mM) and humic acid (10–50 mg l-1) on the AAP removal were investigated. Ferrate (VI) can remove 99.6% AAP (from 1000 µg l-1) in 60 min under study conditions when majority of the AAP reduction occurred in the first 5 min. The treatment performance depended on the ferrate(VI) dosage, pH and the type and strength of co-existing ions and humic acid. Raising ferrate (VI) dosage with optimal pH 7 improved the AAP degradation. In the presence of humic acid, the AAP degradation by ferrate (VI) was promoted in a short period (<30 min) but then inhibited with increasing in humic acid contents.
Original languageEnglish
Pages (from-to)583-590
Number of pages8
JournalChemosphere
Volume155
Issue number7
Early online date4 May 2016
DOIs
Publication statusPublished - Jul 2016

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reaction kinetics
Acetaminophen
Reaction kinetics
humic acid
Humic Substances
oxidation
Degradation
Oxidation
degradation
ion
Ions
aqueous solution
kinetics
Kinetics
ferrate ion
product
dosage

Keywords

  • reaction kinetics
  • oxidation
  • ferrate (VI)

Cite this

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title = "Reaction kinetics and oxidation product formation in the degradation of acetaminophen by ferrate (VI)",
abstract = "This paper investigates the degradation of acetaminophen (AAP) in aqueous solutions by ferrate (VI), aiming to propose the kinetics, pathways and the oxidation products’ formation in the AAP degradation. A series of jar tests were undertaken over ferrate (VI) dosages (molar ratios of ferrate (VI):AAP, 5:1 to 25:1) and pH values (4–11). The effects of co-existing ions (0.2–5 mM) and humic acid (10–50 mg l-1) on the AAP removal were investigated. Ferrate (VI) can remove 99.6{\%} AAP (from 1000 µg l-1) in 60 min under study conditions when majority of the AAP reduction occurred in the first 5 min. The treatment performance depended on the ferrate(VI) dosage, pH and the type and strength of co-existing ions and humic acid. Raising ferrate (VI) dosage with optimal pH 7 improved the AAP degradation. In the presence of humic acid, the AAP degradation by ferrate (VI) was promoted in a short period (<30 min) but then inhibited with increasing in humic acid contents.",
keywords = "reaction kinetics, oxidation, ferrate (VI)",
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Reaction kinetics and oxidation product formation in the degradation of acetaminophen by ferrate (VI). / Wang, Hong-Yu; Liu, YB; Jiang, JiaQian.

In: Chemosphere, Vol. 155, No. 7, 07.2016, p. 583-590.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Reaction kinetics and oxidation product formation in the degradation of acetaminophen by ferrate (VI)

AU - Wang, Hong-Yu

AU - Liu, YB

AU - Jiang, JiaQian

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PY - 2016/7

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AB - This paper investigates the degradation of acetaminophen (AAP) in aqueous solutions by ferrate (VI), aiming to propose the kinetics, pathways and the oxidation products’ formation in the AAP degradation. A series of jar tests were undertaken over ferrate (VI) dosages (molar ratios of ferrate (VI):AAP, 5:1 to 25:1) and pH values (4–11). The effects of co-existing ions (0.2–5 mM) and humic acid (10–50 mg l-1) on the AAP removal were investigated. Ferrate (VI) can remove 99.6% AAP (from 1000 µg l-1) in 60 min under study conditions when majority of the AAP reduction occurred in the first 5 min. The treatment performance depended on the ferrate(VI) dosage, pH and the type and strength of co-existing ions and humic acid. Raising ferrate (VI) dosage with optimal pH 7 improved the AAP degradation. In the presence of humic acid, the AAP degradation by ferrate (VI) was promoted in a short period (<30 min) but then inhibited with increasing in humic acid contents.

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