An enquiry on appropriate selection of polymers for preparation of polymeric nanosorbents and nanofiltration/ultrafiltration membranes for hormone micropollutants removal from water effluents

Khansary, Milad Asgarpour; Mellat, Mostafa; Saadat, Seyed Hassan; Fasihi-Ramandi, Mahdi; Kamali, Mohammad; Taheri, Ramezan Ali

doi:10.1016/j.chemosphere.2016.10.049

Cited by 34 publications

(16 citation statements)

References 17 publications

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“…Up to now, several materials such as polymeric nanoparticles, micelles, metal clusters, nanoparticles, mesoporous silica and different carbon nanostructures have been investigated as adsorbent materials However, the limitation of these adsorbents such as low drug adsorption capacities, uncontrolled release and toxicity have restricted their development . To choose a desirable drug adsorption material, several important factors including high drug adsorption capacity, controlled drug release, and chemical stability especially water stability might be investigated .…”

Section: Introductionmentioning

confidence: 99%

Zr‐Based MOFs with High Drug Loading for Adsorption Removal of Anti‐Cancer Drugs: A Potential Drug Storage

Molavi

Moghimi

Taheri

2020

Applied Organom Chemis

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A robust and highly water stable series of UiO‐66‐drived MOFs including UiO‐66‐NH2, glycidyl methacrylate functionalized UiO‐66‐NH2 (UiO‐66‐GMA) and ethylenediamine functionalized UiO‐66‐NH2 (UiO‐66‐EDA) were synthesized solvothermally and studied their adsorption performances toward two anti‐cancer drugs, methotrexate (MTX) and curcumin (CUR) in the case of overdose. It was found that functionalizing the surface of UiO‐66‐NH2 nanoparticles with different functional groups remarkably changes the adsorption capacity and the ideal adsorption selectivity of MTX over CUR. Particularly, the UiO‐66‐EDA exhibited the highest adsorption capacities for both drugs, 540.78 and 423.85 mg/g for MTX and CUR, respectively, because of the strong interaction between drug molecules and adsorbent via hydrogen bonding due to the existence of different polar functional groups. The kinetics of drugs adsorption was investigated by three well‐known kinetic models, which the output indicates that the adsorption of both drugs onto the synthesized MOFs follow the pseudo‐second‐order model. Moreover, it was found that the equilibrium adsorption results were well fitted with the Langmuir isotherm models, revealing that the adsorption of both drugs onto the synthesized MOFs is a monolayer adsorption process. Further investigation illustrated that the synthesized MOFs could be easily activated and reused after four successive adsorption–desorption cycles. The output of the present work is of main important for biomedical and environmental applications of MOFs as an outstanding adsorbent for adsorption removal of hazardous drugs from contaminated aqueous solutions.

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Section: Introductionmentioning

confidence: 99%

Zr‐Based MOFs with High Drug Loading for Adsorption Removal of Anti‐Cancer Drugs: A Potential Drug Storage

Molavi

Moghimi

Taheri

2020

Applied Organom Chemis

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“…Ecosystems have been severely affected by biologically active micropollutants such as estrogens which are inadvertently released into the environment. [1][2][3][4] These micropollutants have entered the environment by human activities, and despite deleterious effects, their concentrations are at trace level (i.e., up to the microgram per liter range). Due to the low concentration and small size of these types of contaminations (a few nanometers, typically), conventional samplers of water treatment are ineffectual.…”

Section: Introductionmentioning

confidence: 99%

“…5,6 In the fabrication of passive polymeric samplers, the efficient selection of materials plays a crucial role as the interaction between the sampler and micropollutants is very desirable, but the interaction among sampler and water is unfavorable. The task of finding proper sampler materials remains as a challenge to empirical methods and trial and error experiments 1 as a wide variety of polymers that are available and synthesized nowadays. 7,8 Moreover, the cost of doing experiments and sometimes inaccessibility of required materials/conditions are other impetus to motivate researchers to scan a wider range of involved parameters by doing computational simulations and investigations.…”

Section: Introductionmentioning

confidence: 99%

“…In the particular case of samplers, some suitable samplers have been discovered by using computational methods, recently. 1,6 In a recent project, by using a theoretical approach 3 to model the interaction between lignin and eight estrogens, lignin was identified as a potential material for adsorption of estrogenic micropollutants and thus fabrication of passive polymeric samplers. 9 Lignin seems an applicable choice because in one hand it is one of the most widely available biomacromolecules on the earth, 2 and in the other, the use of which brings sustainability and low costs in the application of samplers.…”

Section: Introductionmentioning

confidence: 99%

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Computational Prediction of Estrogenic Micropollutants Removal from Lignin Surface Using Ionic Liquids

Hafizi

Amani

Taheri

2019

J Apple Biotechnol Rep

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Introduction: Estrogens are of the most dangerous micro/nanopollutants that have shown severe influences on the ecosystems and microorganisms. There is an ever-increasing demand to reliably detect and practically remove these estrogens from effluents. In a recently proposed method, estrogens can be detected and removed from effluents using a sampler (lignin). In this study it has been shown that ionic liquids are a potential choice to separate the adsorbed estrogens from the surface of "dirty" lignin so that the sampler could be reused. Materials and Methods: More than 300 ionic liquids were screened for removing estrogens from the lignin surface by employing a quantum chemistry method, COnductor-like Screening MOdel (COSMO), to determine the interaction quality between the ionic liquid and eight estrogens of interest. Results: The results revealed that there are at least 24 solvents that can remove adsorbed estrogens from the surface of lignin. Conclusions: This prediction completes the cycle of reusing lignin as an efficient polymeric sampler to remove estrogens from effluents and provokes experimental justifications.

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“…This situation can also occur when activated carbon adsorption is used as alternative removal technique (Altmann et al, 2014). Previous studies demonstrated that the existing interactions between organic matter and PhACs can help remove them from aquatic environments, either as a part of the retentate stream or as a solute adsorbed on the membrane, especially due to the hydrophobic interactions between organic matter and PhACs and the adsorptive mechanism (Khansary et al, 2017;García-Ivars et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Nanofiltration as tertiary treatment method for removing trace pharmaceutically active compounds in wastewater from wastewater treatment plants

et al. 2017

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The ever-increasing occurrence and persistence of pharmaceutically active compounds (PhACs) in soils, sediments, drinking water supplies and wastewater effluents are a matter of serious environmental concern for governments and researchers worldwide. Nanofiltration as tertiary treatment method can be a viable and practical tool to remove these pollutants from aquatic environments. However, organic matter present in water sources can foul the membrane surface during operation, thus being potentially able to affect the membrane performance. Therefore, fouling mechanisms could heavily influence on the removal efficiencies. The purpose of this study was to investigate the implementation of three nanofiltration membranes (TFC-SR2, NF-270 and MPS-34) and to study both the rejection of trace PhACs and the fouling mechanisms for each membrane as a function of feed solution pH. Fouling mechanisms were predicted by Hermia's model adapted to cross-flow configurations. Results demonstrated that higher removals were obtained at slightly alkaline pH, especially for anionic trace PhACs. At the same conditions, more severe fouling was observed, which resulted in strong flux declines and an increase in hydrophobicity. This indicates that the attached organic matter on the membrane surface acts as a secondary selective barrier for separation.

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An enquiry on appropriate selection of polymers for preparation of polymeric nanosorbents and nanofiltration/ultrafiltration membranes for hormone micropollutants removal from water effluents

Cited by 34 publications

References 17 publications

Zr‐Based MOFs with High Drug Loading for Adsorption Removal of Anti‐Cancer Drugs: A Potential Drug Storage

Zr‐Based MOFs with High Drug Loading for Adsorption Removal of Anti‐Cancer Drugs: A Potential Drug Storage

Computational Prediction of Estrogenic Micropollutants Removal from Lignin Surface Using Ionic Liquids

Nanofiltration as tertiary treatment method for removing trace pharmaceutically active compounds in wastewater from wastewater treatment plants

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