Graphene Oxide Nanocomposite Incorporated Poly(ether imide) Mixed Matrix Membranes for in Vitro Evaluation of Its Efficacy in Blood Purification Applications

Kaleekkal, Noel Jacob; Arumugham, Thanigaivelan; Mohan, Durga; Girish, Ramesh; Rana, Dipak; Soundararajan, P.; Mohan, D.

doi:10.1021/acs.iecr.5b01655

Cited by 39 publications

(26 citation statements)

References 68 publications

(134 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To extend the applications of GO‐based membranes, for example, to ultrafiltration (UF) and microfiltration (MF), and further improve GO‐based membrane performance, various inorganic materials, such as carbon nanotubes (CNTs), TiO 2 , Ag and other nanoparticles have been hybridized with GO to improve their water purification performance. In addition, GO has been investigated as a novel additive to various polymers to form MMM with improved water purification performance …”

Section: Go Composite Membranes and MMM With Go Additivementioning

confidence: 99%

“…Polymer functionalized GO or GO‐polymer co‐additives were prepared to improve dispersibility of GO in organic solvents and reinforce interfacial interactions required between GO and the polymer matrix . Kaleekkal et al incorporated GO‐PVP nanocomposite into the poly(ether imide) (PEI) matrix to prepare MMM. They found that the GO‐PVP‐PEI membrane showed a 4‐time increase of the water permeability in UF and improved permeability recovery ratio during the protein filtration.…”

Section: Go Composite Membranes and MMM With Go Additivementioning

confidence: 99%

See 1 more Smart Citation

Graphene Oxide: A Novel 2‐Dimensional Material in Membrane Separation for Water Purification

Fathizadeh

Zhou

et al. 2017

Adv Materials Inter

172

View full text Add to dashboard Cite

a significant advantage, greatly facilitates GO deposition from solution using water as a low cost and environment-friendly solvent. [3] Recently, GO has attracted great attention as a novel 2-D membrane material in water purification application because of its excellent mechanical property, atomically thin thickness, excellent dispersion in water, and ease to form compact membrane structure or to be added into polymer matrix. [3,4] Concept demonstration/preliminary studies on using graphene-based membranes for water purification were focused on simulations for single layer graphene/ GO/reduced GO (rGO) with structural defects. Cohen-Tanugi et al., [5] using molecular dynamics (MD) simulation, found that hydrogenated and hydroxylated defects with appropriate sizes on graphene could have 2-3 orders of magnitude higher water permeability than commercial reverse osmosis (RO) membranes but similarly high salt rejection, suggesting great potential of single-layered graphene membranes for desalination. Lin et al. [6] showed by MD simulations that thermally reducing GO with different initial epoxy to hydroxyl ratios and different oxygen concentrations may generate selective defects on rGO for high water permeability and high salt rejection desalination. Figure 2a shows representative structures of rGO after reduction at 2,500 K, when GO flakes with different starting oxygen concentrations and epoxy concentrations or epoxy/hydroxyl ratios are used. With the increase of oxygen concentration and epoxy concentration, rGO becomes more defective and has bigger nanopores because of more carbon removal from the GO matrix. This suggests pores on rGO may be controlled by controlling starting GO composition and reduction conditions. Further, they studied desalination performance of defects on rGO after reduction at different temperatures and using GO with different oxygen concentrations and epoxy concentrations (Figure 2b). Too low oxygen concentration (17%) leads to complete water blocking irrespective of reduction temperature and initial epoxy concentration or epoxy/hydroxyl ratio. At higher initial oxygen concentration (25% and 33%), high water flux and 99% salt rejection can be obtained depending on reduction temperature epoxy/hydroxyl ratio. These promising simulation results, therefore, suggest appropriately reducing GO with desired starting composition As a newly emerging 2-dimensional (2-D) material with sub-nanometer thickness, graphene oxide (GO) has been widely studied either as a pure/skeleton membrane material or as an additive in and a functional coating on matrix membranes for water purification because of its unique physico-chemicomechanical properties. Manipulating or incorporating this novel 2-D material effectively into a membrane structure has been shown to significantly improve membrane performance, including increased water permeability, alleviated fouling, improved antibacterial properties, etc., which will eventually lead to lower energy consumption, longer lifetime, and lower maintenance cost. As the pure/...

show abstract

Section: Go Composite Membranes and MMM With Go Additivementioning

confidence: 99%

Section: Go Composite Membranes and MMM With Go Additivementioning

confidence: 99%

Graphene Oxide: A Novel 2‐Dimensional Material in Membrane Separation for Water Purification

Fathizadeh

Zhou

et al. 2017

Adv Materials Inter

172

View full text Add to dashboard Cite

show abstract

“…After chemical modification, the surface functional groups of GO make it more compatible with the polymer matrix, which provides good dispersion in a polymer matrix, resulting in composites with excellent mechanical and thermal properties [7,8]. The polymer/GO nanocomposites used for wide range of applications have been discussed in detail [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

In situ polymerization and performance of alicyclic polyimide/graphene oxide nanocomposites derived from 6FAPB and CBDA

Hao

Xiao

et al. 2017

Applied Surface Science

View full text Add to dashboard Cite

A series of alicyclic polyimide/graphene oxide(PI/GO) nanocomposites were successfully prepared by in situ polymerization of 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene(6FAPB) and 1,2,3,4-cyclobutanetetracarboxylic dianhydride(CBDA) as well as GO, followed by thermal imidization. The effect of GO on the thermal stability, optical properties, mechanical properties, water absorption and water surface contact angle of the PI-based nanocomposites was investigated. The optical properties of the pure alicyclic PI and corresponding PI-based nanocomposite films showed that the addition of GO reduced the transparency of PI films in the range of 200-800nm obviously. With the increase of GO loading, the mechanical and thermal properties of alicyclic PI-based nanocomposites were enhanced. For the PI-1.0%GO nanocomposite films, the tensile strength was increased from 96 MPa (pure PI) to 109 MPa, and the Young's modulus was improved from 2.41 GPa (pure PI) to 3.83 GPa. The 10 wt% decomposition temperature for PI-1.0%GO nanocomposite films was increased from 464 (pure PI) to 481 o C, while the glass transition temperature (T g) of PI/GO was slightly increased. In addition, the water surface contact angle of PI/GO enhanced from 71 o to 82.5 o ,

show abstract

“…Membrane-based separation can be considered as a promising tool for water treatment processes due to its numerous advantages. 1,2 However, low flux recovery, fouling, and high energy utilization are common drawbacks related to membrane applications. 3,4 Many attempts have been made to improve overall membrane performance such as material modification, polymer blending, 5,6 plasma treatment, grafting with short-chain molecules, 7 hydrophilic monomers, 8,9 embedding nanoparticles, 10,11 and surface modification.…”

Section: Introductionmentioning

confidence: 99%

Exploring the effects of graphene oxide concentration on properties and antifouling performance of PEES/GO ultrafiltration membranes

Bala

Nithya

Doraisamy

2017

High Performance Polymers

View full text Add to dashboard Cite

In this study, asymmetric polyphenylene-ether-ether-sulfone (PEES) ultrafiltration (UF) membranes containing graphene oxide (GO) were prepared via non-solvent-induced phase separation process and N-methyl pyrrolidone was used as a solvent. The synthesis of GO was confirmed by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction analysis. The morphology of the prepared GO nanosheets was observed by field emission scanning electron microscope (FESEM) and transmission electron microscope. The membranes prepared with increasing concentrations of GO nanosheets were characterized by attenuated total reflectance-FTIR, SEM, atomic force microscopy (AFM), contact angle, and UF studies. The FTIR spectra of the GO embedded membranes reveal large amounts of –OH groups present due to the existence of GO nanosheets which improved its surface hydrophilicity. The contact angle of PEES/GO membrane was significantly lower than PEES membrane. The SEM pictures showed that PEES/GO UF membranes had a sponge-like substructure with the increased porosity and pore size. An AFM topography imaging showed that roughnesses of the modified membranes were improved compared to the pristine PEES membrane. The UF studies showed that the pure water flux ( JW) and the bovine serum albumin flux ( JP) were increased with the incorporation of GO into the blend solution. For the membrane with 0.1% GO content, JW increased by 75% and JP improved twofold which correspond to the maximum values of 186 and 113 L m−2 h−1, respectively. Furthermore, the flux recovery ratio results suggested that PEES/GO membranes have better antifouling characteristics due to the changes in membrane morphology and surface hydrophilicity.

show abstract

Graphene Oxide Nanocomposite Incorporated Poly(ether imide) Mixed Matrix Membranes for in Vitro Evaluation of Its Efficacy in Blood Purification Applications

Cited by 39 publications

References 68 publications

Graphene Oxide: A Novel 2‐Dimensional Material in Membrane Separation for Water Purification

Graphene Oxide: A Novel 2‐Dimensional Material in Membrane Separation for Water Purification

In situ polymerization and performance of alicyclic polyimide/graphene oxide nanocomposites derived from 6FAPB and CBDA

Exploring the effects of graphene oxide concentration on properties and antifouling performance of PEES/GO ultrafiltration membranes

Contact Info

Product

Resources

About