Optimization of the adsorption of total organic carbon from produced water using functionalized multi-walled carbon nanotubes

Adewoye, Tunmise Latifat; Ogunleye, O. O.; Abdulkareem, A. S.; Salawudeen, T. O.; Tijani, Jimoh Oladejo

doi:10.1016/j.heliyon.2020.e05866

Cited by 28 publications

(6 citation statements)

References 66 publications

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“…The peak observed at 2366 cm −1 corresponds to the elongation vibration of the strongly hydrogenated -OH bond of the carboxylic groups (─COOH) as mentioned by Oularbi et al during the preparation of nanocomposites consisting of bismuth particles, polypyrrole, and multi-walled carbon nanotubes (Oularbi et al, 2019). Our results are in good agreement with those of the previous works in the literature confirming that the treated MWCNTs have been successfully oxidized with new functional groups on their surface (De et al, 2017;Adewoye et al, 2021;Qazi et al, 2021).…”

Section: Physicochemical Characterization Of F-mwcntssupporting

confidence: 91%

Designing New Material Based on Functionalized Multi-Walled Carbon Nanotubes and Cu(OH)2–Cu2O/Polypyrrole Catalyst for Ethanol Oxidation in Alkaline Medium

et al. 2022

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In this work, copper(II) hydroxide (Cu(OH)2) and copper oxide (Cu2O) nanostructures are deposited on functionalized multi-walled carbon nanotubes/polypyrrole to report an efficient electrocatalyst for ethanol oxidation in alkaline medium. In the first step, the deposition of functionalized multi-walled nanotubes of carbon (F-MWCNTs) on the electrode surface was carried out using drop casting mode followed by the electrodeposition of polypyrrole (PPy) and copper nanoparticles (Cu-Nps) using galvanostatic mode. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were performed in order to study the morphology and the structure of the elaborated catalysts. Electrochemical characterization conducted by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) revealed that the introduction of functionalized multi-walled carbon nanotubes enhances the electric properties of the nanocomposites and offers a large active surface area. The prepared electrocatalyst was then tested in a solution of 0.1 M NaOH containing 0.2 M of ethanol showing high performance (7 mA cm−2 at 0.85 V vs Ag/AgCl) and good stability (over 1800 s) toward ethanol oxidation.

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Section: Physicochemical Characterization Of F-mwcntssupporting

confidence: 91%

Designing New Material Based on Functionalized Multi-Walled Carbon Nanotubes and Cu(OH)2–Cu2O/Polypyrrole Catalyst for Ethanol Oxidation in Alkaline Medium

et al. 2022

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“…In brief, a diluted sample of 3 mL was mixed with potassium dichromate (K 2 Cr 2 O 7 ) of 2 mL and digestion acid (sulfuric acid) of 4 mL. Thereafter, the mixture was digested in a Hach COD digester for 2 h at 150 °C [ 49 , [51] , [52] , [53] ]. The COD was measured using HACH DR 2800 spectrophotometer, while the percentage adsorption of COD was calculated using Eq.…”

Section: Methodsmentioning

confidence: 99%

Column adsorption of biological oxygen demand, chemical oxygen demand and total organic carbon from wastewater by magnetite nanoparticles-zeolite A composite

Kovo¹,

Alaya-Ibrahim²,

Abdulkareem³

et al. 2023

Heliyon

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“…It can be used to estimate the amount of pollution in water sample. The COD determination was conducted using the method by Adewoye et al [ 33 ]. A total of 10 mL of 0.25 N potassium dichromate (K 2 Cr 2 O 7 ), 30 mL of sulphuric acid, and Silva-sulphate (H 2 SO 4 + Ag 2 SO 4 ) were added to a COD vial containing 20 mL of the water sample.…”

Section: Methodsmentioning

confidence: 99%

Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal

et al. 2021

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In this study, the use of ultra-violet (UV) light with or without iron oxide nanoparticles (IONPs) for the degradation of synthetic petroleum wastewater was investigated. The IONPs was synthesised by sodium borohydride reduction of ferric chloride solution and was characterised by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectrometry (FTIR), x-ray fluorescence spectrophotometry (XRF), and energy dispersive spectroscopy (EDS). The amount of degradation was evaluated by chemical oxygen demand (COD) determination. Experimental results show that the COD removal from synthetic petroleum wastewater by IONPs/UV system was more effective than they were independently. The combination of UV light at a wavelength of 254 nm, pH of 8, and 1.0 g of IONPs resulted in COD removal from 10.5% up to 95.5%. The photocatalytic degradation of synthetic petroleum wastewater is about 1.3–2.0 times faster in comparison to UV light only. The removal of COD from synthetic petroleum wastewater by UV light and IONPs follows the pseudo-first-order kinetic model with rate constant k ranging from 0.0133 min−1 to 0.0269 min−1. Consequently, this study has shown that the use of UV light in the presence of IONPs is favourable and effective for the removal of organic pollutants from petroleum refinery wastewater.

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Optimization of the adsorption of total organic carbon from produced water using functionalized multi-walled carbon nanotubes

Cited by 28 publications

References 66 publications

Designing New Material Based on Functionalized Multi-Walled Carbon Nanotubes and Cu(OH)2–Cu2O/Polypyrrole Catalyst for Ethanol Oxidation in Alkaline Medium

Designing New Material Based on Functionalized Multi-Walled Carbon Nanotubes and Cu(OH)2–Cu2O/Polypyrrole Catalyst for Ethanol Oxidation in Alkaline Medium

Column adsorption of biological oxygen demand, chemical oxygen demand and total organic carbon from wastewater by magnetite nanoparticles-zeolite A composite

Performance Evaluation of Ultra-Violet Light and Iron Oxide Nanoparticles for the Treatment of Synthetic Petroleum Wastewater: Kinetics of COD Removal

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