Ultrasound-assisted magnetic solid phase extraction of lead and thallium in complex environmental samples using magnetic multi-walled carbon nanotubes/zeolite nanocomposite

Gugushe, Aphiwe Siyasanga; Mpupa, Anele; Nomngongo, Philiswa N.

doi:10.1016/j.microc.2019.05.060

Cited by 62 publications

(26 citation statements)

References 59 publications

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“…In the addition, parameters such as liner calibration range, LOD, EF, and RSD for UASPME/ICP-OES technique were comparable to those stated in the literature 44 . However, the analytical performance on the developed method was relatively poor than those reported by Refs 32 , 45 .…”

Section: Resultsmentioning

confidence: 61%

“…ite was achieved following the procedure described elsewhere 7,31 Preconcentration of trace metals using UA-DMSPE method. The ultrasonic-assisted dispersive solid-phase extraction procedure was carried according to our previous methods 12,32 . Briefly, 50-100 mg of the magnetic LDHs nanocomposite was weighed into 100 mL plastic bottles, then an aliquot of 20 mL synthetic sample solutions (pH 3-9) was added to the sample bottles.…”

Section: Synthesis Of Fe 3 O 4 @Mg/al-ldh Nanocomposite the Synthesimentioning

confidence: 99%

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Magnetic Fe3O4@Mg/Al-layered double hydroxide adsorbent for preconcentration of trace metals in water matrices

Nyaba

Munonde

Mpupa

et al. 2021

Sci Rep

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A magnetic Fe3O4@MgAl-layered double hydroxide (MLDH) nanocomposite was successfully synthesized and applied as an effective adsorbent for preconcentration of trace As(III), Cd(II), Cr(III), Co(II), Ni(II), and Pb(II) ions from complex matrices. The quantification of the analytes was achieved using the inductively coupled plasma optical emission spectrometry (ICP-OES) technique. The nanocomposite was then characterized using BET, FTIR, SEM, and EDS. Due to its high adsorption surface area, compared to traditional metal oxide-based adsorbents, MLDH nanocomposite exhibited high extraction efficiency. Several experimental parameters controlling the preconcentration of the trace metals were optimized using response surface methodology based on central composite design. Under optimum conditions, the linearity ranged from 0.1 to 500 µg L−1 and the correlation of coefficients (R2) were higher than 0.999. The limits of detection (LODs) and quantification (LOQs) were 0.11–0.22 µg L−1 and 0.35–0.73 µg L−1, respectively. The intra-day (n = 10) and inter-day precisions (n = 5 working days) expressed in the form of percent relative standard deviations (%RSDs) were below 5%. The proposed method was successfully applied for the analysis of the As(III), Cd(II), Cr(III), Co(II), Ni(II), and Pb(II) ions in different environmental water samples.

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Section: Resultsmentioning

confidence: 61%

Section: Synthesis Of Fe 3 O 4 @Mg/al-ldh Nanocomposite the Synthesimentioning

confidence: 99%

Magnetic Fe3O4@Mg/Al-layered double hydroxide adsorbent for preconcentration of trace metals in water matrices

Nyaba

Munonde

Mpupa

et al. 2021

Sci Rep

Self Cite

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“…Bandpi and coworkers fabricated an adsorbent based on natural zeolite (NZ) coated with Fe 3 O 4 (CNZ) nanoparticles for cephalexin (CEX) removal from aqueous solution. The maximum CEX removal efficiency for CNZ, and NZ were found to be 93% and 28%, respectively [ 102 ]. Similarly, Samarghandi et al fabricated manganese oxide NPs coated with NZ adsorbents for CEX removal form aqueous solution.…”

Section: Nanotechnology In Wastewater Managementmentioning

confidence: 99%

Nanotechnology in Wastewater Management: A New Paradigm Towards Wastewater Treatment

et al. 2021

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Clean and safe water is a fundamental human need for multi-faceted development of society and a thriving economy. Brisk rises in populations, expanding industrialization, urbanization and extensive agriculture practices have resulted in the generation of wastewater which have not only made the water dirty or polluted, but also deadly. Millions of people die every year due to diseases communicated through consumption of water contaminated by deleterious pathogens. Although various methods for wastewater treatment have been explored in the last few decades but their use is restrained by many limitations including use of chemicals, formation of disinfection by-products (DBPs), time consumption and expensiveness. Nanotechnology, manipulation of matter at a molecular or an atomic level to craft new structures, devices and systems having superior electronic, optical, magnetic, conductive and mechanical properties, is emerging as a promising technology, which has demonstrated remarkable feats in various fields including wastewater treatment. Nanomaterials encompass a high surface to volume ratio, a high sensitivity and reactivity, a high adsorption capacity, and ease of functionalization which makes them suitable for application in wastewater treatment. In this article we have reviewed the techniques being developed for wastewater treatment using nanotechnology based on adsorption and biosorption, nanofiltration, photocatalysis, disinfection and sensing technology. Furthermore, this review also highlights the fate of the nanomaterials in wastewater treatment as well as risks associated with their use.

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“…Concentrations were calculated at calibrated potential (+ 0.4 V) regarding the detection of Tl 3+ in IE, RSW, and WW, which completely established the expected electrochemical method. It is an appropriate and suitable tool for the examination of environmental sample (Figure and Table ).…”

Section: Applicationmentioning

confidence: 99%

A Thallium Ion Sensor Development Based on the Synthesized (E)‐N′‐(Methoxybenzylidene)‐4‐ Methylbenzenesulfonohydrazide Derivatives: Environmental Sample Analysis

et al. 2019

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In this research work, three new derivatives of (E)‐Nʹ‐(methoxybenzylidene)‐4‐methylbenzenesulfonohydrazide (MBMBSH) were prepared by means of a condensation technique from the methoxybenzaldehyde and 4‐methyl‐benzenesulphonylhydrazine in good yields, which were crystallized in EtOH and MeOH. MBMBSH ligands were examined through spectroscopic progression (1H‐NMR, 13C‐NMR, FTIR, and UV‐Visible). Structures of the MBMBSH lignads confirmed with a single crystal X‐ray diffraction scheme (SCXRDS). MBMBSH derivatives used for the imminent recognition of heavy metal ion (thallium) based on a reliable current‐voltage (I−V) procedure. Smooth GCE was covered with a light layer of MBMBSH molecules and consequently modified toward a sensitive and selective thallium ion sensor using conducting polymer matrix, Nafion (NF). Analytical parameters such as sensitivity, LOQ, and LOD of GCE/4‐MBMBSH/NF as a sensor were calculated from the calibration plot and found as 622.9 pAμM−1cm−2, 250.0 mM, and 75.0 pM respectively. This prospective sensor (GCE/4‐MBMBSH/NF) applied to the careful determination of thallium ion in spiked environmental samples and found satisfactory result.

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Ultrasound-assisted magnetic solid phase extraction of lead and thallium in complex environmental samples using magnetic multi-walled carbon nanotubes/zeolite nanocomposite

Cited by 62 publications

References 59 publications

Magnetic Fe3O4@Mg/Al-layered double hydroxide adsorbent for preconcentration of trace metals in water matrices

Magnetic Fe3O4@Mg/Al-layered double hydroxide adsorbent for preconcentration of trace metals in water matrices

Nanotechnology in Wastewater Management: A New Paradigm Towards Wastewater Treatment

A Thallium Ion Sensor Development Based on the Synthesized (E)‐N′‐(Methoxybenzylidene)‐4‐ Methylbenzenesulfonohydrazide Derivatives: Environmental Sample Analysis

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