Liquid chromatographic determination of per- and polyfluoroalkyl substances in environmental river water samples

Selahle, Shirley Kholofelo; Mpupa, Anele; Nomngongo, Philiswa N.

doi:10.1016/j.arabjc.2022.103960

Cited by 12 publications

(10 citation statements)

References 60 publications

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“…The XRD spectrum of Fe 3 O 4 was similar to the previously reported XRD patterns of Fe 3 O 4 . [33] The XRD spectrum of MIL-101(Cr) revealed crystalline peaks that were in accordance with the one reported previously. [53] The XRD spectrum of the nanocomposite showed that highly crystalline peaks of Fe 3 O 4 were prominent at 2θ angle of 30.1°, 37.6°, 41.6°, 54.4°, 58.6°and 65.4°, which corresponded to (220), ( 311), ( 400), ( 422), ( 511) and (440) planes of typical crystalline structure of Fe 3 O 4 (JCPDS file 19-0629).…”

Section: X-ray Diffraction Spectroscopysupporting

confidence: 89%

“…The FTIR spectrum of Fe 3 O 4 exhibited an intense peak around 547 cm À 1, indicating the stretching bond of FeÀ O, confirming the effective synthesis of Fe 3 O 4 nanoparticles. [33] Furthermore, the intensive peaks observed at around 1480 and 1641 cm À 1 were respectivey assigned to CÀ O and C=O which could be from the resonating structures of CO 2 in the air. [51] On the FTIR spectrum of MIL-101 (Cr), a broad MIL-101(Cr) peak was exhibited at around 3400 cm À 1, indicating OÀ H vibrational stretching.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 95%

“…Fe 3 O 4 nanoparticles were prepared according to reported studies. [33] The preparation of MIL-101(Cr) followed the hydrothermal route reported by Mehrabadi and Faghihian. [40] Typically, Cr(NO 3 ) 3 • 9H 2 O (1.5 g), H 2 BDC (498 mg) and NaOH (120 mg) were added to 15 mL ultrapure water.…”

Section: Synthesis Of Fe 3 O 4 Nanoparticles and Chromium Based-mil-101mentioning

confidence: 99%

“…In addition, Fe 3 O 4 provides additional adsorption sites to improve the performance of the nanocomposite. [33][34][35] Magnetic MIL-101(Cr) (Fe 3 O 4 @MIL-101(Cr)) has been used for various applications, including the removal of different pollutants from the environment. [36][37][38][39] However, for the first time, the current work reports the use of this material for the removal of one of the recalcitrant group of pharmaceuticals (β-blockers) from the environment.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, Fe 3 O 4 nanoparticles have been incorporated to facilitate the adsorbent recovery through an external magnet. In addition, Fe 3 O 4 provides additional adsorption sites to improve the performance of the nanocomposite [33–35] . Magnetic MIL‐101(Cr) (Fe 3 O 4 @MIL‐101(Cr)) has been used for various applications, including the removal of different pollutants from the environment [36–39] .…”

Section: Introductionmentioning

confidence: 99%

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Adsorption Isotherms and Kinetics of Acebutolol and Metoprolol on Magnetic Nanocomposite Fe₃O₄@MIL‐101(Cr)

Waleng,

Selahle,

Jakavula

et al. 2023

ChemistrySelect

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Contamination of water bodies by emerging pollutants such as β‐blockers has been a global concern over the past few years. This is due to the bioaccumulative character of β‐blockers in the aquatic systems, and their excessive usage might cause adverse effects on both humans and aquatic biota. A reusable and recyclable magnetic chromium‐based MIL‐101 (Fe3O4@MIL‐101(Cr)) nanocomposite was used as an adsorbent for the removal of the selected β‐blockers (acebutolol and metoprolol) from wastewater. The nanocomposite‘s structural, magnetic and surface properties were confirmed using various characterisation techniques. The equilibrium data indicated that the maximum adsorption capacities of Fe3O4@MIL‐101(Cr) for acebutolol and metoprolol were 30.9 mg g−1 and 28.3 mg g−1, respectively. The isotherm and kinetic experimental data best fitted Langmuir isotherm and pseudo‐second‐order kinetics models. Obtained free energies using the Dubinin‐Radushkevich model were above 8 kJ mol−1, demonstrating that the interaction mechanism between β‐blockers and the Fe3O4@MIL‐101(Cr) nanocomposite was chemisorption. The prepared nanocomposite was then used to remove β‐blockers from real samples, and maximum removal efficiencies (94.1–97.1 %) were obtained in the presence of co‐existing species. The Fe3O4@MIL‐101(Cr) hybrid showed great potential for efficient and facile removal of β‐blockers from river water, effluent and influent wastewater samples.

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Section: X-ray Diffraction Spectroscopysupporting

confidence: 89%

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 95%

Section: Synthesis Of Fe 3 O 4 Nanoparticles and Chromium Based-mil-101mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Adsorption Isotherms and Kinetics of Acebutolol and Metoprolol on Magnetic Nanocomposite Fe₃O₄@MIL‐101(Cr)

Waleng,

Selahle,

Jakavula

et al. 2023

ChemistrySelect

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Development of Magnetic Solid Phase Micro-Extraction (MSPE) Method for the Extraction and Preconcentration of the Selected β-Blockers in the Environmental Wastewaters

Waleng,

Selahle,

Mpupa

et al. 2024

Chemistry Africa

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Emerging organic pollutants s have always been the greatest environmental concern due to their ubiquity and distinguished adverse effects. These are mostly water-bone pollutants flagged as endocrine disruptors and can greatly inconvenience the ecosystem. Among others, β-blockers have also been detected in the environment at various concentrations that threaten the well-being of humans and animals. In this work, NH2-MIL-101(Cr) doped magnetic nanoparticles nanocomposite was successfully synthesised and characterised using analytical techniques such as X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) and transmission electron microscopy (TEM). The Fe3O4@NH2-MIL-101(Cr) was then used as an adsorbent to extract the selected β-blockers in the environmental wastewater. The selected β-blockers were quantified using a high-performance liquid chromatography-diode array detector (HPLC-DAD). Parameters affecting the extraction were screened and optimised using fractional factorial design (FFD) and central composite design (CCD), respectively. Under optimum conditions, the LODs were 0.057 and 0.065 µg L− 1, and LOQs were 0.19 and 0.22 µg L− 1 for acebutolol (ACE) and metoprolol (MET), respectively. The calibration curve exhibited the linearity range of 0.2–1200 µg L− 1 with correlation coefficients of 0.9987 and 0.9968 for ACE and MET, respectively. Repeatability studies demonstrated the %RSD of 0.63 and 0.74% for MET and ACE. At the same time, reproducibility studies displayed the %RSD of 1.057 and 1.178% for MET and ACE, respectively. Spike recovery experiments were carried out to assess the performance of MSPE in real samples, and over 88% of both analytes were recovered. This indicated that the MSPE method could enrich various organic pollutants from different environmental matrices.

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Fluorine-functionalized magnetic amino microporous organic network for enrichment of perfluoroalkyl substances

Sun,

Yang,

Shen

et al. 2024

Journal of Chromatography A

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Liquid chromatographic determination of per- and polyfluoroalkyl substances in environmental river water samples

Cited by 12 publications

References 60 publications

Adsorption Isotherms and Kinetics of Acebutolol and Metoprolol on Magnetic Nanocomposite Fe₃O₄@MIL‐101(Cr)

Adsorption Isotherms and Kinetics of Acebutolol and Metoprolol on Magnetic Nanocomposite Fe₃O₄@MIL‐101(Cr)

Development of Magnetic Solid Phase Micro-Extraction (MSPE) Method for the Extraction and Preconcentration of the Selected β-Blockers in the Environmental Wastewaters

Fluorine-functionalized magnetic amino microporous organic network for enrichment of perfluoroalkyl substances

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Liquid chromatographic determination of per- and polyfluoroalkyl substances in environmental river water samples

Cited by 12 publications

References 60 publications

Adsorption Isotherms and Kinetics of Acebutolol and Metoprolol on Magnetic Nanocomposite Fe3O4@MIL‐101(Cr)

Adsorption Isotherms and Kinetics of Acebutolol and Metoprolol on Magnetic Nanocomposite Fe3O4@MIL‐101(Cr)

Development of Magnetic Solid Phase Micro-Extraction (MSPE) Method for the Extraction and Preconcentration of the Selected β-Blockers in the Environmental Wastewaters

Fluorine-functionalized magnetic amino microporous organic network for enrichment of perfluoroalkyl substances

Contact Info

Product

Resources

About

Adsorption Isotherms and Kinetics of Acebutolol and Metoprolol on Magnetic Nanocomposite Fe₃O₄@MIL‐101(Cr)

Adsorption Isotherms and Kinetics of Acebutolol and Metoprolol on Magnetic Nanocomposite Fe₃O₄@MIL‐101(Cr)