Construction of porous biochar decorated with NiS for the removal of ciprofloxacin antibiotic from pharmaceutical wastewaters

Azzam, Ahmed B.; Tokhy, Yousif A.; Dars, Farida M. El; Younes, Ahmed

doi:10.1016/j.jwpe.2022.103006

Cited by 33 publications

(7 citation statements)

References 80 publications

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“…The Cu(II) ions’ equilibrium concentrations in the solid and liquid phases were expressed using a variety of models, including the Freundlich, Langmuir, Dubinin–Radushkevich (D-R), and Temkin isotherm models (Mozaffari et al 2020a ; Azzam et al 2022 ) These models can be expressed in linearized forms, as demonstrated in Table S3 .…”

Section: Resultsmentioning

confidence: 99%

Functional Ag-EDTA-modified MnO2 nanocoral reef for rapid removal of hazardous copper from wastewater

Ali,

Azzam

2023

Environ Sci Pollut Res

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A novel MnO2@EDTA-Ag nanocoral reef was constructed via a simplified redox reaction followed by EDTA and Ag nanoparticles impregnation to capture hazardous copper (II) from wastewater. A comprehensive characterization of the synthesized materials was conducted. The morphology of MnO2@EDTA-Ag in the form of a nanocoral reef was constructed of two-dimensional nanoplatelets and nanorod-like nanostructures. The optimal adsorption conditions proposed by the Plackett–Burman design (PBD) that would provide a removal % of 99.95 were pH 5.5, a contact time of 32.0 min, a Cu(II) concentration of 11.2 mg L−1, an adsorbent dose of 0.05 g, and a temperature of 40.3 °C. The loading of Ag nanoparticles onto MnO2@EDTA improved the adsorption capability of MnO2@EDTA-Ag. Additionally, the recyclability of MnO2@EDTA-Ag nanocoral reef was maintained at 80% after three adsorption–desorption cycles, and there was no significant change in the XRD analysis before and after the recycling process, implying its stability. It was found that nanocoral reef-assisted EDTA formed a chelation/complexation reaction between COO− groups and C–N bonds of EDTA with Cu(II) ions. In addition, X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) analysis proved the synergistic effect of the electrostatic interaction and chelation/complexation was responsible for the removal mechanism of Cu(II). Also, the results demonstrated no significant variation in MnO2@EDTA-Ag removal efficiency for all the tested real water samples, revealing its efficacy in wastewater treatment. Therefore, the current study suggests that MnO2@EDTA-Ag has substantial potential to be used as a feasible adsorbent for probable hazardous metals remediation.

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Section: Resultsmentioning

confidence: 99%

Functional Ag-EDTA-modified MnO2 nanocoral reef for rapid removal of hazardous copper from wastewater

Ali,

Azzam

2023

Environ Sci Pollut Res

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“…The concentration of livestock and aquaculture wastewater and pharmaceutical wastewater could reach tens of mg L −1 [ 10 , 46 ]. Based on published literature [ 47 ], concentrations up to 300 mg L –1 were identified as an extreme case. The performance of nZVI/PA for the removal of CIP with different concentrations (50−300 mg L −1 ) is shown in Figure 4 a.…”

Section: Resultsmentioning

confidence: 99%

Efficient Removal of Ciprofloxacin from Contaminated Water via Polystyrene Anion Exchange Resin with Nanoconfined Zero-Valent Iron

et al. 2022

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Ciprofloxacin (CIP), an important emerging contaminant, has been frequently detected in water, and its efficient removal has become an issue of great concern. In this study, a nanocomposite material nZVI/PA was synthesized by impregnating nanoscale zero-valent iron (nZVI) inside a millimeter-sized porous host (polystyrene-based anion exchange resin (PA)) for CIP removal. The nZVI/PA composite was characterized by field emission scanning electron microscopy coupled with energy-dispersive X-ray, transmission electron microscopy, X-ray diffraction, as well as X-ray photoelectron spectroscopy, and it was confirmed that nZVI was uniformly dispersed in PA with a small particle size. Furthermore, several key factors were investigated including initial solution pH, initial CIP concentration, co-existing ions, organic ligands, and dissolved oxygen. The experimental results indicated that the nZVI/PA composites exhibited a high removal efficiency for CIP under the conditions of initial pH 5.0, and initial CIP concentration 50 mg L−1 at 25 °C, with the maximum removal rate of CIP reaching 98.5%. Moreover, the nZVI/PA composites exhibited high efficiency even after five cycles. Furthermore, quenching tests and electron spin resonance (ESR) confirmed that CIP degradation was attributed to hydroxyl (·OH) and superoxide radicals (⋅O2−). Finally, the main degradation products of CIP were analyzed, and degradation pathways including the hydroxylation of the quinolone ring, the cleavage of the piperazine ring, and defluorination were proposed. These results are valuable for evaluating the practical application of nZVI/PA composites for the removal of CIP and other fluoroquinolone antibiotics.

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“…Copper oxide nanoparticles were successfully prepared using green tea extract as fuel for the photocatalytic degradation of methylene blue (Rupashree et al, 2021). A biochar composite prepared from nickel sulfide nanoparticles and banana peel showed good promise for the adsorption of ciprofloxacin (Azzam et al, 2022). Waste tea was used as a reducing and stabilization agent during the synthesis of silver nanoparticles for the degradation of organic dye (Qing et al, 2017).…”

Section: New Advances In Tea and Coffee‐based Adsorbents For Pharmace...mentioning

confidence: 99%

“…Tea extracts were used as capping and modifying agents to prevent agglomeration of nanoparticles and hence improve their usability and handleability due to filtration (Javed et al, 2020). It has to be said that some of the published applications of nanoparticles derived from biomass were either not produced from tea or coffee waste materials (Azzam et al, 2022) or were not applied on pharmaceutical removal (Gautam et al, 2018; Qing et al, 2017; Rupashree et al, 2021), but these are mentioned here to illustrate the need for extension of these applications to pharmaceuticals and tea/coffee waste materials. Copper oxide nanoparticles were successfully prepared using green tea extract as fuel for the photocatalytic degradation of methylene blue (Rupashree et al, 2021).…”

Section: New Advances In Tea and Coffee‐based Adsorbents For Pharmace...mentioning

confidence: 99%

Trends in removal of pharmaceuticals in contaminated water using waste coffee and tea‐based materials with their derivatives

Madikizela

Pakade

2023

Water Environment Research

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The introduction of large amounts of pharmaceuticals into the environmental waters is well‐documented in literature with their occurrence reported in all different water matrices accessible to humans and animals. At the same time, the increasing consumption of coffee and tea‐based beverages results in the generation of solid waste, which is mostly disposed‐off in the environment. To minimize environmental pollution, coffee and tea‐based materials have been proposed as suitable options to remove pharmaceuticals in environmental waters. Therefore, this article provides a critical review on the preparation and applications of coffee and tea‐based materials in removing pharmaceuticals from contaminated water. In this context, most studies in literature focused on the applications of these materials as adsorbents, while only limited work on their role in degradation of pharmaceuticals is discussed. The successful application in adsorption studies is attributed to high surface areas of adsorbents and the ability to easily modify the adsorbent surfaces by incorporating functional groups that provide additional oxygen atoms, which promote easy interactions with pharmaceuticals. Hence, the adsorption mechanisms are mostly described by hydrogen bonding, electrostatic and π–π interactions with sample pH playing a dominant role in the adsorption process. Overall, the present article focused on the developments, trends and future research direction on the preparations and applications of coffee and tea‐based materials for efficient removal of pharmaceuticals in water. Practitioner Points Review of tea and coffee wastes application for removal of pharmaceuticals in water Key applications in adsorption and degradation of pharmaceuticals in water Removal mostly explained by hydrogen bonding, electrostatic, and π–π interactions Trends, gaps, and future research to be explored are reviewed and highlighted

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Construction of porous biochar decorated with NiS for the removal of ciprofloxacin antibiotic from pharmaceutical wastewaters

Cited by 33 publications

References 80 publications

Functional Ag-EDTA-modified MnO2 nanocoral reef for rapid removal of hazardous copper from wastewater

Functional Ag-EDTA-modified MnO2 nanocoral reef for rapid removal of hazardous copper from wastewater

Efficient Removal of Ciprofloxacin from Contaminated Water via Polystyrene Anion Exchange Resin with Nanoconfined Zero-Valent Iron

Trends in removal of pharmaceuticals in contaminated water using waste coffee and tea‐based materials with their derivatives

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