Beta-FeOOH/polyamide nanocomposites for the remediation of 4-chlorophenol from contaminated waters

Akharame, Michael Ovbare; Oputu, Ogheneochuko; Pereao, Omoniyi; Olorunfemi, Daniel I.; Fatoki, Olalekan S

doi:10.1007/s10965-022-03007-4

Cited by 4 publications

(3 citation statements)

References 78 publications

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“…Securing a safe, economical, accessible, and reliable water supply is currently being threatened by the anthropogenic deposition of organic chemicals and micro-pollutants in the different environmental matrices ( Akharame et al, 2022 ). The deposition of these organic compounds in surface waters and underground aquifers poses challenges to the availability of potable water resources.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, our research team has carried out several investigations targeting phenolic compounds due to their endocrine-disrupting potentials. This includes investigating their degradation route during ozonation processes ( Oputu et al, 2019 ; Akharame et al, 2020 ), and proffering remediation measures using heterogeneous catalytic approaches ( Oputu et al, 2015a ; Oputu et al, 2015b ; Akharame et al, 2022 ). Phenolic compounds’ environmental contamination pathways include the manufacturing of preservatives, pulp and paper, pesticides and dyes, wines, and other phenol-based compounds ( Xu et al, 2017 ; Raza et al, 2019 ; Yahaya et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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Phenolic compounds occurrence and human health risk assessment in potable and treated waters in Western Cape, South Africa

Mhlongo,

Akharame,

Pereao

et al. 2024

Front. Toxicol.

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Phenolic pollutants from industrial and agricultural activities pose a major threat to the world’s potable water supply. The persistent micro-pollutants often find their way into drinking water sources with possible adverse human health implications. In this study, bottled water, tap water, and wastewater treatment plant (WWTP) effluent samples from the Boland region of the Western Cape, South Africa were assessed to determine 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP) levels using HPLC/DAD instrumentation. The selected area is known for its vast agricultural ventures and wineries. Evaluation of the human health risk (cancer risk) for the pollutants was conducted using the hazard quotient (HQ). The Ames mutagenicity test was also conducted using the Salmonella typhimurium T98 and T100 strains and the S9 activation enzyme. Trace levels of the phenolics were detected in the samples with a range of 9.32 × 10−7—1.15 × 10−4 mg/L obtained for 4-CP, and 8.80 × 10−7—1.72 × 10−4 mg/L recorded for 2,4-DCP. Both compounds had levels below the limit of 0.01 mg/L prescribed by South African legislation. The assessed HQ for the phenolic concentrations indicates a low level of potential ecological risk and none of the samples had a cancer risk value that exceeded the regulatory limit. The possibility of the analyzed samples causing cancer is unlikely, but non-carcinogenic adverse effects were found. Strong mutagenicity was observed for the T98 strains with a potential ability to cause mutation toward the insertion or deletion of a nucleotide. The T100 bacterial strain showed very slight mutagenicity potential, however, it is unlikely to cause any mutation. The levels of phenolics in the potable water samples may pose a significant threat to human health. Hence, screening persistent organic chemicals in potable water sources and evaluating their potential human health effects is pertinent to prevent associated health challenges.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phenolic compounds occurrence and human health risk assessment in potable and treated waters in Western Cape, South Africa

Mhlongo,

Akharame,

Pereao

et al. 2024

Front. Toxicol.

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“…The transition-metal oxides such as V 2 O 5 , ZrO 2 , WO 3 , and TiO 2 have been widely applied to water remediation under visible or UV light irradiation [ 28 , 29 , 30 , 31 , 32 ]. Besides semiconductor photocatalysis, photo-Fenton reaction is another universal and powerful tool to eliminate organic contaminants in wastewater [ 33 , 34 , 35 , 36 ]. In combination of the advantages of both Fenton reactions and photocatalysis, the photocatalysis-Fenton system (photo-Fenton) may significantly enhance the purification ability.…”

Section: Introductionmentioning

confidence: 99%

Hydrogel/β-FeOOH-Coated Poly(vinylidene fluoride) Membranes with Superhydrophilicity/Underwater Superoleophobicity Facilely Fabricated via an Aqueous Approach for Multifunctional Applications

et al. 2023

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Hydrogel coatings that can endow various substrates with superior properties (e.g., biocompatibility, hydrophilicity, and lubricity) have wide applications in the fields of oil/water separation, antifouling, anti-bioadhesion, etc. Currently, the engineering of multifunctional hydrogel-coated materials with superwettability and water purification property using a simple and sustainable strategy is still largely uninvestigated but has a beneficial effect on the world. Herein, we successfully prepared poly(2-acrylamido-2-methyl-1-propanesulfonic acid) hydrogel/β-FeOOH-coated poly(vinylidene fluoride) (PVDF/PAMPS/β-FeOOH) membrane through free-radical polymerization and the in situ mineralization process. In this work, owing to the combination of hydrophilic PAMPS hydrogel coating and β-FeOOH nanorods anchored onto PVDF membrane, the resultant PVDF/PAMPS/β-FeOOH membrane achieved outstanding superhydrophilicity/underwater superoleophobicity. Moreover, the membrane not only effectively separated surfactant-stabilized oil/water emulsions, but also possessed a long-term use capacity. In addition, excellent photocatalytic activity against organic pollutants was demonstrated so that the PVDF/PAMPS/β-FeOOH membrane could be utilized to deal with wastewater. It is envisioned that these hydrogel/β-FeOOH-coated PVDF membranes have versatile applications in the fields of oil/water separation and wastewater purification.

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Polyamide 6 (PA6)/carbon nanotubes (MWCNT) nanocomposites for antistatic application: tailoring mechanical and electrical properties for electronic product protection

da Silva,

Luna,

da Silva Barbosa Ferreira

et al. 2024

J Polym Res

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Beta-FeOOH/polyamide nanocomposites for the remediation of 4-chlorophenol from contaminated waters

Cited by 4 publications

References 78 publications

Phenolic compounds occurrence and human health risk assessment in potable and treated waters in Western Cape, South Africa

Phenolic compounds occurrence and human health risk assessment in potable and treated waters in Western Cape, South Africa

Hydrogel/β-FeOOH-Coated Poly(vinylidene fluoride) Membranes with Superhydrophilicity/Underwater Superoleophobicity Facilely Fabricated via an Aqueous Approach for Multifunctional Applications

Polyamide 6 (PA6)/carbon nanotubes (MWCNT) nanocomposites for antistatic application: tailoring mechanical and electrical properties for electronic product protection

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