Application of Composite NanoMaterial to Determine Phenols in Wastewater by Solid Phase Micro Membrane Tip Extraction and Capillary Electrophoresis

Al-Shaalan, Nora Hamad; Ali, Imran; ALOthman, Zeid A.; Al-Wahaibi, Lamya H.; Alabdulmonem, Hadeel

doi:10.3390/molecules24193443

Cited by 11 publications

(8 citation statements)

References 30 publications

(30 reference statements)

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“…In order to avoid the influence of interfering substances on the separation of the analyte, SPMMTE and carbon nanotubes SPE column as new pretreatment technologies can be used in combination with CE-UV to separate interfering substances from the analyte. Al-Shaalan et al [32] have used SPMMTE to extract phenol and p-amino-phenol from wastewater followed by analysis with CE-UV method. So as to ideally analyze phenol derivative in wastewater, carbon nanotubes SPE column applied to extract 90% v/v of p-nitro-phenol from wastewater was coupled with the CE-UV for the determination of the p-nitro-phenol.…”

Section: Organic Compoundsmentioning

confidence: 99%

Applications of capillary electrophoresis in the fields of environmental, pharmaceutical, clinical, and food analysis (2019–2021)

Wang

Gong

Liu

et al. 2022

J of Separation Science

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So far, the potential of capillary electrophoresis in the application fields has been increasingly excavated due to the advantages of simple operation, short analysis time, high‐resolution, less sample consumption, and low cost. This review examines the implementations and advancements of capillary electrophoresis in different application fields (environmental, pharmaceutical, clinical, and food analysis) covering the literature from 2019 to 2021. In addition, ultrasmall sample injection volume (nanoliter range) and short optical path lead to relatively low concentration sensitivity of the most frequently used ultraviolet‐absorption spectrophotometric detection, so the pretreatment technology being developed has been gradually utilized to overcome this problem. Despite the review being focused on the development of capillary electrophoresis in the fields of environmental, pharmaceutical, clinical, and food analysis, the new sample pretreatment techniques of microextraction and enrichment fit excellently to capillary electrophoresis in recent three years are also described briefly.

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Section: Organic Compoundsmentioning

confidence: 99%

Applications of capillary electrophoresis in the fields of environmental, pharmaceutical, clinical, and food analysis (2019–2021)

Wang

Gong

Liu

et al. 2022

J of Separation Science

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“…Advanced materials are gaining importance in a wide range of applications. Composite nanomaterial was applied (Al-Shaalan et al, 2019) to determine phenols in wastewater. Recently, Alimohammadi et al (2022) have applied magnetically active nanocomposite aerogels for water treatment since these materials are characterized by a high specific surface area and high porosity, as well as a given pore size distribution.…”

Section: Phenol Is a Highly Corrosive And Nerve Poisoning Agentmentioning

confidence: 99%

Phenol removal from aqueous environments by natural & chemically modified kaolin clay

Abdel‐Aleem

Abdel‐Tawab

Hassouna

2022

Environmental Quality Mgmt

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Natural, acid and base modified kaolin clays were studied for the sake of phenol and 4-chlorophenol removal from aqueous environments and their application to real ground and industrial wastewater samples. Scanning electron microscope (SEM), infrared spectroscopy (IR), X-ray diffraction (XRD), Thermo Gravimetric Analysis (TGA), Differential Thermal Analysis (DTA), and Surface area analysis were employed for characterization of the adsorbents microstructure. Operating factors such as adsorbent dose, solution pH, initial phenol concentration, and contact time were studied. The experimental data displayed that the increase of the adsorbent dose, contact time, and pH value from 2 to 7 increases the efficiency of the removal process. Optimal conditions for phenolic removal were; contact time of 300 min, primary phenol solution of 25 mg/L, pH 7 and 2.5 g/L as an appropriate adsorbent dose using crude (natural), acid modified and base modified kaolin clays. The higher phenolic removal efficiencies were obtained at 5 mg/L as 90, 97, 96.2%, respectively, for the adsorbents in the previously mentioned order. The adsorption capacity in the removal of phenol and 4-chlorophenol were 7. 481 and 4.195, 8.2942 and 3.211, and 8.05185 and 18.565 mg/g, respectively, for the adsorbents in the same mentioned order. The adsorption equilibrium data were fitted and analyzed with four isotherm models, namely, Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich isotherm equations.The adsorption process of phenol on studied adsorbents was exothermic, spontaneous and thermodynamically favorable proved by the negative values of their thermodynamic parameters ΔH • and ΔG • . The correlation coefficient (R 2 ) for all concentrations was higher than 0.94, which indicates that in the studied system, the data suitably fit the first-order kinetics. The % desorption capacity was amounted to 96%, 91.11%, and 87.06% of adsorbed phenol, respectively, for the adsorbents in the previous order using 0.1N NaOH and 10% V/V ethanol solutions as eluents at 25 • C, indicating the reusability of the adsorbents. Kaolin and its modified forms can be introduced as eco-friendly and low-cost adsorbents in water remediation implementation.

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“…The average fatal dose is approximately 25-50 mL of household phenol [19]. Sensitivity and selective analytical methods such as spectrophotometry [20], gas and liquid chromatography [21], capillary electrophoresis [22] and flow injection analysis [23] are widely used for monitoring phenol. These techniques are expensive, require sophisticated instrumentation and time-consuming sample pretreatments, thereby being unsuitable for in situ and continuous measurements [24].…”

Section: Introductionmentioning

confidence: 99%

Multiwalled Carbon Nanotubes/4,4′‐Dihydroxybiphenyl Nanolayered Composite for Voltammetric Detection of Phenol

et al. 2021

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This paper reports the preparation of multiwalled carbon nanotubes/4,4′‐dihydroxybiphenyl (MWCNTs‐DHB) nanolayered composite as a new modifier for modification of carbon paste electrode (CPE/MWCNTs‐DHB). CPE/MWCNTs‐DHB shows linear responses for phenol in the concentrations range of 0.04–220 μM with a current sensitivity of 0.67 μA μM−1 and a detection limit of 8.0 nM (S/N=3). The electrode shows high selectivity, good repeatability (RSD=4.1 %), excellent reproducibility (RSD=3.5 %), and acceptable stability (91.2 % over one‐month storage). Moreover, the modified CPE exhibits appreciable recoveries (93.0–104.0 %) indicating its acceptable performance for determination of phenol in tap and river water samples.

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Application of Composite NanoMaterial to Determine Phenols in Wastewater by Solid Phase Micro Membrane Tip Extraction and Capillary Electrophoresis

Cited by 11 publications

References 30 publications

Applications of capillary electrophoresis in the fields of environmental, pharmaceutical, clinical, and food analysis (2019–2021)

Applications of capillary electrophoresis in the fields of environmental, pharmaceutical, clinical, and food analysis (2019–2021)

Phenol removal from aqueous environments by natural & chemically modified kaolin clay

Multiwalled Carbon Nanotubes/4,4′‐Dihydroxybiphenyl Nanolayered Composite for Voltammetric Detection of Phenol

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