Synthesis and characterization of polysulfone/graphene oxide nano-composite membranes for removal of bisphenol A from water

Nasseri, Simin; Ebrahimi, Shima; Abtahi, Mehrnoosh; Saeedi, Reza

doi:10.1016/j.jenvman.2017.09.074

Cited by 79 publications

(36 citation statements)

References 39 publications

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“…Isotherm models designate how the adsorbed molecules dispense themselves between the liquid phase and the solid phase when the biosorption process reaches equilibrium. They can give information on how the biosorption process proceeds and can be used to observe how efficiently a given biosorbent interacts with the adsorbate [ 19 ]. The most widely known surface biosorption isotherm models for single-solute systems are the Langmuir and Freundlich models [ 20 ].…”

Section: Resultsmentioning

confidence: 99%

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Utilization of Cactus Peel as Biosorbent for the Removal of Reactive Dyes from Textile Dye Effluents

Gebrezgiher

Kiflie

2020

Journal of Environmental and Public Health

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Textile industries generate large quantities of dye containing wastewater which pose a serious environmental problem. Currently, biosorbents have become desirable for the removal of dyes from textile effluents. In this study, batch experiments were conducted to investigate the biosorption characteristics of cactus peel on the removal of reactive red dye from aqueous solutions. The effects of solution pH, biosorbent dosage, contact time, and initial concentration were studied. The interaction effects of process variables were analysed using response surface methodology. The results showed that removal efficiency increased as initial dye concentration and solution pH decreased and as biosorbent dosage and contact time increased. The highest removal efficiency (99.43%) was achieved at solution pH, initial dye concentration, biosorbent dose, and contact time of 3.0, 40 mg/l, 6 g, and 120 min, respectively. From regression analysis, the Langmuir isotherm was found to better (R2 = 0.9935) represent the biosorption process as compared with the Freundlich isotherm (R2 = 0.9722). Similarly, the pseudo-second-order model was seen to represent very well the biosorption kinetics. The results show that cactus peel has good potential for the removal of reactive red dye.

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Section: Resultsmentioning

confidence: 99%

“…ey can give information on how the biosorption process proceeds and can be used to observe how efficiently a given biosorbent interacts with the adsorbate [19]. e most widely known surface biosorption isotherm models for single-solute systems are the Langmuir and Freundlich models [20].…”

Section: Dye Biosorption Isotherm Modelsmentioning

confidence: 99%

Utilization of Cactus Peel as Biosorbent for the Removal of Reactive Dyes from Textile Dye Effluents

Gebrezgiher

Kiflie

2020

Journal of Environmental and Public Health

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“…In addition to using cDNA to lock the initial aptamer conformation and designing the stem-loop aptabeacon, a nanomaterial, such as graphene oxide (GO), is intensively used as the a nanoscaffold to adsorb ssDNA probes. GO, a two-dimensional carbon material, has attracted considerable attention owing to its prominent physical, chemical, thermal, and mechanical properties [ 120 , 121 ]. GO that can be used to build aptasensors is based on these three main properties.…”

Section: Aptamer-based Biosensormentioning

confidence: 99%

Aptamers used for biosensors and targeted therapy

Ning

2020

Biomedicine & Pharmacotherapy

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“…Recently, Ji et al [26] reported the preparation of PSf/GO loose nanofiltration hollow-fiber membranes, which effectively stored Congo red at 99.9% over a continuous period of 480 min. Nasseri et al [27] synthesised and characterised a PSf/GO nanocomposite membrane under optimum conditions; this membrane eliminated up to 93% of bisphenol A from the water environment. PSf-TiO 2 /GO nanocomposite membranes were also prepared by Sirinupong et al [28] for forwarding osmosis applications.…”

Section: Introductionmentioning

confidence: 99%

One-Pot Preparation of Alumina-Modified Polysulfone-Graphene Oxide Nanocomposite Membrane for Separation of Emulsion-Oil from Wastewater

Nguyen

Truong

et al. 2020

Journal of Nanomaterials

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In recent years, polysulfone-based nanocomposite membranes have been widely used for contaminated water treatment because they comprise properties such as high thermal stability and chemical resistance. In this study, a polysulfone (PSf) nanocomposite membrane was fabricated using the wet-phase inversion method with the fusion of graphene oxide (GO) and alumina (Al2O3) nanoparticles. We also showed that GO-Al2O3 nanoparticles were synthesised successfully by using a one-pot hydrothermal method. The nanocomposite membranes were characterised by Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), nitrogen adsorption-desorption isotherms, energy-dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), and water contact angle. The loading of GO and Al2O3 was investigated to improve the hydrophilic and oil rejection of the matrix membrane. It was shown that by using 1.5 wt.% GO-Al2O3 loaded in polysulfone, ~74% volume of oil was separated from the oil/water emulsion at 0.87 bar and 30 min. This figure was higher than that of the process using the unmodified membrane (PSf/GO) at the same conditions, in which only ~60% volume of oil was separated. The pH, oil/water emulsion concentration, separation time, and irreversible fouling coefficient (FRw) were also investigated. The obtained results suggested that the GO-Al2O3 nanoparticles loaded in the polysulfone membrane might have potential use in oily wastewater treatment applications.

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Synthesis and characterization of polysulfone/graphene oxide nano-composite membranes for removal of bisphenol A from water

Cited by 79 publications

References 39 publications

Utilization of Cactus Peel as Biosorbent for the Removal of Reactive Dyes from Textile Dye Effluents

Utilization of Cactus Peel as Biosorbent for the Removal of Reactive Dyes from Textile Dye Effluents

Aptamers used for biosensors and targeted therapy

One-Pot Preparation of Alumina-Modified Polysulfone-Graphene Oxide Nanocomposite Membrane for Separation of Emulsion-Oil from Wastewater

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