Overview of nanosorbents used in solid phase extraction techniques for the monitoring of emerging organic contaminants in water and wastewater samples

Nouri, Nayereh; Khorram, Parisa; Duman, Osman; Tunç, Sibel; Sereshti, Hassan

doi:10.1016/j.teac.2020.e00081

Cited by 73 publications

(23 citation statements)

References 64 publications

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“…The preconcentration process in these methods requires a very low sample flow rate to increase the retention factor making this approach time consuming. Moreover, SPE technique has limitations of adsorbent leaching, column clogging and channeling 18 .…”

Section: Introductionmentioning

confidence: 99%

Adsorptive colorimetric determination of chromium(VI) ions at ultratrace levels using amine functionalized mesoporous silica

Ghosh

Gopalakrishnan

Renganathan

et al. 2022

Sci Rep

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There is an urgent need for a rapid, affordable and sensitive analytical method for periodic monitoring of heavy metals in water bodies. Herein, we report for the first time a versatile method for ultratrace level metal detection based on colorimetric sensing. The method integrates preconcentration using a nanomaterial with a colorimetric assay performed directly on the metal-enriched nanomaterial surface. This method circumvents the need for tedious sample pre-processing steps and the complex development of colorimetric probes, thereby reducing the complexity of the analytical procedure. The efficacy of the proposed method was demonstrated for chromium(VI) ions detection in water samples. Amine functionalized mesoporous silica (AMS) obtained from a one-pot synthesis was utilized as a pre-concentration material. The structural and chemical analysis of AMS was conducted to confirm its physico-chemical properties. The pre-concentration conditions were optimized to maximise the colorimetric signal. AMS exhibited a discernible colour change from white to purple (visible to the naked eye) for trace Cr(VI) ions concentration as low as 0.5 μg L−1. This method shows high selectivity for Cr(VI) ions with no colorimetric signal from other metal ions. We believe our method of analysis has a high scope for de-centralized monitoring of organic/inorganic pollutants in resource-constrained settings.

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Section: Introductionmentioning

confidence: 99%

Adsorptive colorimetric determination of chromium(VI) ions at ultratrace levels using amine functionalized mesoporous silica

Ghosh

Gopalakrishnan

Renganathan

et al. 2022

Sci Rep

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“…In addition, environmental samples characterized by different matrix compositions are considered. The issue of the article focusing on the application of nanosorbents as materials for extraction processes was highly treated in the literature [ 3 , 4 , 5 , 6 ]. However, this review contains essential and the most significant information for researchers who deal with the complex issues connected with environmental samples and can be an easy start for future researchers in this area.…”

Section: Introductionmentioning

confidence: 99%

Nanosorbents as Materials for Extraction Processes of Environmental Contaminants and Others

2022

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The aim of this work focuses on the application of nanomaterials (NMs) in different sorptive extraction techniques for the analysis of organic contaminants from environmental samples of distinct matrix compositions. Without any doubt, the integration of specific NMs such as carbonaceous nanomaterials, magnetic nanoparticles (MNPs), metal–organic frameworks (MOFs), silica nanoparticles, and ion-imprinted NPs with solid-phase extraction techniques counting d-SPE, solid-phase microextraction (SPME), and stir bar sorptive extraction (SBSE) impact on the improvements in analytical performance. The application of NMs as sorbents in the extraction of organic pollutants in environmental samples allows for providing better sensitivity, repeatability, reproducibility, and reusability.

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“…Herein, nanostructured magnetite particles, (Fe 3 O 4 ), which has gained much attention, not only for its magnetic properties as it is providing easy to recover and sustainable recyclable catalyst, but also for its low toxicity and human benign. Magnetite (Fe 3 O 4 ) nanoparticles are the most widely used materials owing to their unique properties such as chemical stability, uniform particle size, and biocompatibility (Nouri et al, 2020; Sereshti et al, 2020). Such characteristics make the catalyst reliable and cost efficient catalyst for its sustainable use.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and potential application of magnetized nanoparticles for photocatalysis of Levafix CA reactive azo‐dye in aqueous effluent

Thabet

Fouad

Ali

et al. 2021

Water & Environment J

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Dyes represent major environmental concerns since their presence in aqueous effluents posed a threat to the ecological system. This work is focused on developing a sustainable photo-Fenton strategy for efficient Levafix Blue oxidation. Nanostructured magnetite as the precursor of the oxidation technique has been synthesized via a simple co-precipitation technique. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) were applied to characterize the samples.The experimental dye removal data revealed that almost complete dye removal (99.9%) was attained at pH 3.0 using 800 and 40 mg/L of H 2 O 2 and magnetite reagents, respectively within 30-min of irradiation time. The process follows the first-order reaction model with endothermic and non-spontaneous oxidation reaction in nature with a low activation energy barrier of 14.29 kJ/mol. Finally, the experimental data reveals that magnetite could be easily recovered and recycled up to six treatment cycles with a removal efficiency of 71% confirms the process sustainability.

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Overview of nanosorbents used in solid phase extraction techniques for the monitoring of emerging organic contaminants in water and wastewater samples

Cited by 73 publications

References 64 publications

Adsorptive colorimetric determination of chromium(VI) ions at ultratrace levels using amine functionalized mesoporous silica

Adsorptive colorimetric determination of chromium(VI) ions at ultratrace levels using amine functionalized mesoporous silica

Nanosorbents as Materials for Extraction Processes of Environmental Contaminants and Others

Synthesis, characterization and potential application of magnetized nanoparticles for photocatalysis of Levafix CA reactive azo‐dye in aqueous effluent

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