Minute Cu2+ coupling with HCO3− for efficient degradation of acetaminophen via H2O2 activation

Zhang, Yimin; Lou, Jingkun; Wu, Leliang; Nie, Minghua; Yan, Caixia; Ding, Mingjun; Wang, Peng; Zhang, Hua

doi:10.1016/j.ecoenv.2021.112422

Cited by 23 publications

(6 citation statements)

References 44 publications

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“…As suggested by previous publications, the formation of the Cu(II) complex between Cu(II) and HCO 3 – (λ = 270 nm) could also contribute to ROS formation, , whereas whether a similar phenomenon would occur in the CuO/SPC/AA process was not clear. To make it clear, the UV–vis spectra of the reaction solutions at different pHs were determined.…”

Section: Resultsmentioning

confidence: 95%

Ascorbic Acid-Enhanced CuO/Percarbonate Oxidation: Insights Into the pH-Dependent Mechanism

Dong

Xiao

et al. 2023

ACS EST Eng.

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Herein, the decontamination performance and likelihood of a shift in the reaction mechanism of CuO-activated percarbonate (SPC) in the presence of ascorbic acid (AA) (i.e., CuO/SPC/AA process) under varying pH conditions were explored. Experimental results revealed that sulfamethazine (SMT) could be well degraded over a wide pH range (3.0–9.0). Mechanistic investigations suggested that the hydroxyl radical (•OH) was the major reactive oxygen species (ROS) at acidic pH, whereas Cu(III) played a dominant role in SMT degradation at neutral and alkaline pHs. Alternatively, •OH was determined to be the secondary reactive species generated from the hydrolysis of Cu(III) at neutral and alkaline pHs. Moreover, the role of AA and coexisting Na2CO3 was explored. It was concluded that the regeneration of Cu(I) played an important role in mediating the copper redox cycle under all of the studied pHs, which mainly benefited from reductive AA, and the available superoxide radical (O2 •–) and deprotonated form of H2O2 could also contribute to this process at neutral and alkaline pHs. The coexisting Na2CO3 exerted a negligible impact on SMT degradation at acidic and neutral pHs, while a slight inhibitive effect was observed at alkaline pH. Simultaneously, the potential practicability of the CuO/SPC/AA process was evaluated. This work deepens the understanding of copper-catalyzed heterogeneous activation of percarbonate, widening the application of the reductant for water decontamination.

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Section: Resultsmentioning

confidence: 95%

Ascorbic Acid-Enhanced CuO/Percarbonate Oxidation: Insights Into the pH-Dependent Mechanism

Dong

Xiao

et al. 2023

ACS EST Eng.

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“…Furthermore, the production of 1 O 2 in the HU/PMS system was determined by using FFA as the probe molecule. 27 This process can be described with eqn (6) and (7) . As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…4 , 33.3% FFA was removed within the first 10 min, which seemed to support the production of 1 O 2 in the HU/PMS system. Moreover, based on the second reaction rate constant , 27 [ 1 O 2 ] ss (steady-state concentration of 1 O 2 ) in the first 10 min of the experiment could be calculated to be 3.5 × 10 −10 M.…”

Section: Resultsmentioning

confidence: 99%

Selective degradation of acetaminophen from hydrolyzed urine by peroxymonosulfate alone: performances and mechanisms

Lin

Zhang

et al. 2021

RSC Adv.

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“…HPLC-UV was also utilized as a reference by some authors that aimed to develop novel alternative methods for the determination of BPA [32][33][34]. Moreover, approximately a quarter of studies (23.64%) utilized HPLC-UV as a technique for quantification of BPA in environmental samples [35][36][37][38][39][40][41][42][43][44][45], mostly from aquatic habitats. 12.73% of the analyzed papers studied the leaching of BPA from consumer products, mostly dentistry resins [31,[46][47][48][49][50][51][52], but also from plastic packaging and bottles [53,54].…”

Section: Temporal Distribution and Purpose Of The Selected Articlesmentioning

confidence: 99%

“…We observed that this method was utilized by the majority of studies, with slight modifications regarding the proportion between water and acetonitrile (50-50; 40-60; 70-30). Only a few papers described HPLC methods utilizing a water-methanol mobile phase [36,57,63,65,75,76,85,86]. Moreover, Gamonchuang et al [70] separated BPA from carbonated beverages in a 57% acetonitrile-43% acetic acid mobile phase.…”

Section: Hplc-mobile Phasesmentioning

confidence: 99%

Bisphenol A analysis and quantification inconsistencies via HPLC-UV: a systematic review with technical notes

Pop,

Miu,

Németh

et al. 2024

Discov Appl Sci

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Bisphenol A is an organic compound utilized in the manufacture of plastics and resins that gained attention due to its environmental distribution and endocrine disrupting effects. Currently, bisphenol A is listed as toxic in most countries, it persists in waters, soils, and air around the world, hence the need for well-established methods for its detection. The aim of this paper is to conduct a systematic review of the existing open-access literature, examining the extent to which determination and quantification of bisphenol A was performed by high-performance liquid chromatography coupled with a UV detector (HPLC-UV), probably the most prevalent analytical-grade equipment in research facilities. We searched electronic bibliographic databases (PubMed, Scopus, Web of Science), including in our analysis 55 original open-access research articles that met our designated criteria from a total of 3665 records. The screening of articles revealed multiple approaches in bisphenol A detection and quantification via HPLC-UV; 47.27% of the open-access literature on this topic is dedicated to the development of new methods for purification, extraction or preconcentration of BPA from a large variety of samples. It was also observed that UV detectors were set to a variety of wavelengths that do not comply to the specific peaks of phenolic compounds. Therefore, the linearity of these wavelengths was questioned and a technical note comprising spectroscopic and HPLC-UV measurements of bisphenol A was provided, clarifying nonconformities. Results showed that most studies could maintain their reliability when different wavelengths are used, but a careful approach should be considered when referring to the spectrum ranges 200–205 and 296–300 nm (depending on the solvent used) because of peak shifts and linearity issues.

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Minute Cu2+ coupling with HCO3− for efficient degradation of acetaminophen via H2O2 activation

Cited by 23 publications

References 44 publications

Ascorbic Acid-Enhanced CuO/Percarbonate Oxidation: Insights Into the pH-Dependent Mechanism

Ascorbic Acid-Enhanced CuO/Percarbonate Oxidation: Insights Into the pH-Dependent Mechanism

Selective degradation of acetaminophen from hydrolyzed urine by peroxymonosulfate alone: performances and mechanisms

Bisphenol A analysis and quantification inconsistencies via HPLC-UV: a systematic review with technical notes

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