Fabrication of cellulose acetate/Fe3O4@GO-APTS-poly(AMPS-co-MA) mixed matrix membrane and its evaluation on anionic dyes removal

Sahraei, Razieh; Shahalizade, Taieb; Ghaemy, Mousa; Mahdavi, Hossein

doi:10.1007/s10570-018-1800-9

Cited by 29 publications

(8 citation statements)

References 45 publications

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“…As a control sample, pure cellulose acetate membrane (MCA) is being used in laboratory filtration applications. It was found that MCATPCB20 attained superior metal adsorption properties from the synergic metal exclusion properties aroused from components of MCATPCB that is cellulose and cellulose acetate 52 …”

Section: Resultsmentioning

confidence: 99%

“…It was found that MCATPCB20 attained superior metal adsorption properties from the synergic metal exclusion properties aroused from components of MCATPCB that is cellulose and cellulose acetate. 52 Owing higher dye adsorption capacity along with cadmium and lead metal adsorption makes the MCATPCB membrane a potential candidate for water purification filter applications.…”

Section: Microfiltration Performance Of Mcatpcb20 Against 1 Mg/l Lead...mentioning

confidence: 99%

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An all‐green cellulose acetate/corn cob composite membrane filter: A critical evaluation of its morphology and adsorption characteristics for dyes and heavy metals

Aswathy,

Sen,

Mongaraj

et al. 2024

J of Applied Polymer Sci

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Industrial wastewater from various manufacturing sectors poses a significant environmental concern due to the release of dyes, heavy metals, and pollutants into natural water streams. Effective treatment of large volumes of industrial wastewater is crucial to mitigate this issue. Conventional industrial wastewater filtration systems often prove to be inefficient, necessitating the exploration of alternative and cost‐effective water filtration methods. In this study, we drew inspiration from the natural adsorption and purification properties of corncob to develop a novel green composite membrane filter. The composite membrane filters, named MCAPCB and MCATPCB, were formulated by incorporating powdered corncob (PCB) and alkali/hydrogen peroxide‐treated powdered corncob (TPCB) into cellulose acetate. The adsorption properties of the composite filters were evaluated using UV–Vis spectrophotometry for dye adsorption and inductively coupled plasma optical emission spectroscopy (ICP‐OES) and atomic absorption spectroscopy (AAS) for heavy metal adsorption. The results demonstrated that MCATPCB20, incorporating 20 wt% TPCB, exhibited remarkable performance in the removal of methylene blue dye, with an adsorption efficiency of 97.46%. In comparison, MCAPCB20, incorporating 20 wt% PCB, achieved a dye adsorption efficiency of 80.15%. Moreover, MCATPCB20 displayed exceptional heavy metal removal capabilities, effectively rejecting 98% and 95% of cadmium and lead, respectively, from water samples containing 1 ppm of each metal. The composite filter membranes containing 20 wt% TPCB exhibited superior adsorption efficiency, flexibility, and stability. This enhanced performance can be attributed to the higher carboxyl content in TPCB, achieved through alkali treatment, which significantly increased the adsorption capacity of MCATPCB20. Characterization studies employing XRD, SEM, contact angle, BET, ICP‐OES, and UV measurements further supported the efficacy of MCATPCB as an effective filter system for water purification.

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Section: Resultsmentioning

confidence: 99%

Section: Microfiltration Performance Of Mcatpcb20 Against 1 Mg/l Lead...mentioning

confidence: 99%

An all‐green cellulose acetate/corn cob composite membrane filter: A critical evaluation of its morphology and adsorption characteristics for dyes and heavy metals

Aswathy,

Sen,

Mongaraj

et al. 2024

J of Applied Polymer Sci

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“…V sp = 2V 7.5 − V 30 (13) where K (µD) is the permeability of the filter cake, A is the area of filter medium, (45.6 cm 2 ), µ is the viscosity of the filtrate (8.9 × 10 −4 Pa•s), h mc (cm) is the thickness of the filter cake, and ∆P is the pressure applied on the filter cake (0.69 MPa). The f sm is the solid volume fraction in drilling fluid and f sc is the solid volume fraction in the filter cake.…”

Section: Filtration Characteristics Of Bf/copolymer Suspensionmentioning

confidence: 99%

“…To maintain the desired properties of water-based drilling fluid, mainly regarding rheological performance and minimized water loss into the permeable formation, much effort has been devoted over the past two decades to synthesizing various organic additives such as synthetic copolymers, modified starch [ 7 , 8 , 9 , 10 ], polysaccharides, and cellulose [ 11 , 12 , 13 , 14 , 15 ]. Among these additives, synthetic copolymers are widely used as shale inhibitors [ 16 , 17 , 18 ], viscosifiers, and filtration loss control agents via improving the incorporation between Bent particles and copolymer molecules [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

A Zwitterionic Copolymer as Rheology Modifier and Fluid Loss Agents for Water-Based Drilling Fluids

et al. 2021

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To overcome the negative impact on the rheological and filtration loss properties of drilling fluids caused by elevated temperature and salts contamination, which are common in ultradeep or geothermal drilling operations, it is imperative to develop highly efficient additives used in the water-based drilling fluid. In this study, a zwitterionic copolymer P (AM/DMC/AMPS/DMAM, ADAD) was synthesized by using acrylamide (AM), cationic monomer methacrylatoethyl trimethyl ammonium chloride (DMC), anionic monomer 2-acrylamide-2-methyl propane sulfonic acid (AMPS), and N,N-dimethylacrylamide (DMAM) through free radical copolymerization. The copolymer was characterized by 1H Nuclear Magnetic Resonance (NMR), Fourier transform infrared spectroscopy (FTIR), elemental analysis, thermogravimetric analysis (TGA), and zeta potential. The rheological behavior, filtration properties, and the performance exposure to salt or calcium contamination in water-based drilling fluid were investigated. The bentonite/polymer suspension showed improved rheological and filtration properties even after aging at 160 °C or a high concentration of salt and calcium. The filtration loss can be greatly reduced by more than 50% (from 18 mL to 7 mL) by the inclusion of 2.0 wt% copolymer, while a slight increase in the filtrate loss was observed even when exposed to electrolyte contamination. Particle size distribution and zeta potential further validate the idea that zwitterionic copolymer can greatly improve the stability of base fluid suspension through positive group enhanced anchoring on the clay surface and repulsion force between negative particles. Moreover, this study can be directed towards the design and application of zwitterionic copolymer in a water-based drilling fluid.

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“…targeted drug delivery [24][25][26][27], contrast agent for magnetic resonance imaging (MRI) [28], specific targeting for biosensing of cancer biomarker [29], DNA and RNA purification [30]. Because of its high surface-area-to-volume ratio and strong inter-particle attractive forces, such as Van der Waals force, magnetic force and gravitational force, it tended to aggregate and essentially form uncontrollable large cluster, leading to the loss in their desirable unique properties and limiting its applications [21,31,32]. Therefore, coating MNP with functional polymers, e.g., poly(acrylic acid) [33] and poly(diethylamino)ethyl methacrylate (PDEAEMA) [20] and thermo-responsive polymers, e.g.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Nanoparticles Coated with Cationic Polymer and Label-Free Peptide Aptamer for Selective Adsorption with Bisphenol A

Tummachote

Rutnakornpituk²,

Rutnakornpituk³

2023

Trends Sci

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Magnetite nanoparticles coated with quaternized poly(diethylamino)ethyl methacrylate (PDEAEMA) (PQDEA@MNP) and functionalized with bisphenol A (BPA)-specific peptide aptamer (CKSLENSYC) were synthesized and used as nano-adsorbents for selective adsorption with BPA. The polymer coated on the particles provided their good stability and dispersibility in water, and the aptamer provided selective adsorption with BPA targets. Fourier transformed infrared spectrophotometry (FTIR), thermogravimetric analysis (TGA) and vibrating sample magnetometry (VSM) techniques confirmed the presence of the polymer on the particle surface. From transmission electron microscopy (TEM) study, the particle size was ca.6 - 10 nm in diameter with some nanoclustering (30 - 60 nm in diameter of the nanoclusters). The selective adsorption of BPA on the particles was predominant over the non-specific adsorption when performed in PBS buffer (pH 10) in the presence of NaCl and tween-20. The nano-adsorbents had a good linearity range for the detection of BPA between 0.04 and 0.20 ppm with limit of detection (LOD) of 0.0145 ppm. They retained good BPA adsorption efficiency even when other interfering molecules were present. This simple measurement with the use of these nano-adsorbents without molecular labelling might be promising solid supports for use in various applications with good tolerance towards interfering molecules. HIGHLIGHTS Magnetic nanoparticle was coated with cationic polymer and BPA-specific aptamer This label-free peptide aptamer allowed for the selective capture of BPA targets It showed high selectivity to BPA capture and good tolerance to interfering molecules GRAPHICAL ABSTRACT

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Fabrication of cellulose acetate/Fe3O4@GO-APTS-poly(AMPS-co-MA) mixed matrix membrane and its evaluation on anionic dyes removal

Cited by 29 publications

References 45 publications

An all‐green cellulose acetate/corn cob composite membrane filter: A critical evaluation of its morphology and adsorption characteristics for dyes and heavy metals

An all‐green cellulose acetate/corn cob composite membrane filter: A critical evaluation of its morphology and adsorption characteristics for dyes and heavy metals

A Zwitterionic Copolymer as Rheology Modifier and Fluid Loss Agents for Water-Based Drilling Fluids

Magnetic Nanoparticles Coated with Cationic Polymer and Label-Free Peptide Aptamer for Selective Adsorption with Bisphenol A

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