High flux thin film nanocomposite membrane incorporated with functionalized TiO2@reduced graphene oxide nanohybrids for organic solvent nanofiltration

Abadikhah, Hamidreza; Kalali, Ehsan Naderi; Behzadi, Shabnam; Khan, Sayed Ali; Xu, Xin; Shabestari, Marjan E.; Agathopoulos, Simeon

doi:10.1016/j.ces.2019.04.022

Cited by 79 publications

(38 citation statements)

References 57 publications

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“…This behavior can be verified from the increase in gas permeance of the GO/YSZ hollow fiber membranes after drying for 7 d. Thus, in a subsequent study conducted by Abadikhah et al. [ 290 ] multidimensional hybrid nanostructures with the incorporation of TiO 2 particles were developed to form rGO/TiO 2 nanocomposites, which were fabricated onto the ceramic hollow fiber membrane. Unlike the previous study, the selective layer was incorporated into the porous support via IP after the postsynthetic functionalization of TiO 2 , ensuring that the fabricated membranes are capable of maintaining stable solute rejection with a 12% loss of ethanol flux over the studied duration (48 h), as shown in Figure 15b.…”

Section: Membrane Performancementioning

confidence: 81%

“…Reproduced with permission. [ 290 ] Copyright 2019, Elsevier. c) Schematic illustration of the photocatalytic degradation of dye molecules; UV–vis spectra and color changes (inset) of 50 ppm d) RBBR and e) OII with PTG‐1 membrane under illumination of Xenon lamp; Reproduced with permission.…”

Section: Membrane Performancementioning

confidence: 99%

“…Nevertheless, the degradation effect on PTG‐ n membranes is proven to be more efficient for positively charged dyes than for negatively charged dyes (Figure 15d,e), which is consistent with other literature data. [ 290 ]

\begin{matrix} GO + h v \to e_{CB}^{-} + h_{VB}^{+} \end{matrix}

\begin{matrix} H_{2} O + h_{VB}^{+} \to • OH + H^{+} \end{matrix}

\begin{matrix} R^{\land} {NH}_{2} \to R^{\land} {NH}_{2} + e^{-} \end{matrix}

\begin{matrix} O_{2} + e^{-} \to O_{2}^{-} \end{matrix}

\begin{matrix} O_{2}^{-} + H_{2} O \to H_{2} O_{2} \to 2 • OH \end{matrix}

\begin{matrix} 2 • OH + dye \to intermediates \to {CO}_{2} + H_{2} O \end{matrix}

…”

Section: Membrane Performancementioning

confidence: 99%

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Graphene‐Based Advanced Membrane Applications in Organic Solvent Nanofiltration

Nie

Chuah

Bae

et al. 2020

Adv Funct Materials

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Owing to the increasing need to mitigate excessive organic solvent waste, the efficient separation and recovery of organic solvents have received major research attention in recent years. The membrane‐based organic solvent nanofiltration (OSN) process has demonstrated its feasibility in addressing this problem with low energy costs, compared to conventional separation techniques, such as adsorption, liquid–liquid extraction, and solvent evaporation. Recently, membranes made of 2D graphene‐based materials have shown great promise because they attain high solvent flux and solute rejection using easy processing methods. Thus, this paper focuses on state‐of‐the‐art studies of graphene‐based membranes used in OSN processes, which include syntheses, characterizations, performance evaluations, membrane fouling, and simulation studies, in combination with the development of the “upper‐bound” line to indicate the performance of graphene‐based membranes. In this paper, critical challenges involved in the development of graphene‐based membranes are also focused on and discussed to map out the future directions of these membranes in industrial OSN processes. In addition to OSN, this paper pertains to a broader audience in other separation processes, particularly in the fields of gas separation and water treatment.

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Section: Membrane Performancementioning

confidence: 81%

Section: Membrane Performancementioning

confidence: 99%

\begin{matrix} GO + h v \to e_{CB}^{-} + h_{VB}^{+} \end{matrix}

\begin{matrix} H_{2} O + h_{VB}^{+} \to • OH + H^{+} \end{matrix}

\begin{matrix} R^{\land} {NH}_{2} \to R^{\land} {NH}_{2} + e^{-} \end{matrix}

\begin{matrix} O_{2} + e^{-} \to O_{2}^{-} \end{matrix}

\begin{matrix} O_{2}^{-} + H_{2} O \to H_{2} O_{2} \to 2 • OH \end{matrix}

\begin{matrix} 2 • OH + dye \to intermediates \to {CO}_{2} + H_{2} O \end{matrix}

…”

Section: Membrane Performancementioning

confidence: 99%

See 1 more Smart Citation

Graphene‐Based Advanced Membrane Applications in Organic Solvent Nanofiltration

Nie

Chuah

Bae

et al. 2020

Adv Funct Materials

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“…The presence of oxygenated functional groups on the surface of GO nanosheets provides potential active sites for attaching various nanomaterials and functional groups to the surface, aiding evolution of nanohybrid materials based on GO, which have a wide range of applications. 57 GO nanosheets with different metal and metal oxides including Ag, 58,59 Cu, 60 TiO 2 61 and ZnO 62 have been synthesized and successfully incorporated into the PA layer of TFC membrane, which exhibited excellent separation performance with antifouling and anti-bacterial properties. In a recent study, Ag-GO nanosheets were incorporated into the PA layer to fabricate biofouling-resistant TFN membrane (Table S1, ESI, † entry 7).…”

Section: Go Enriched Tfn Membranesmentioning

confidence: 99%

2D nanosheet enabled thin film nanocomposite membranes for freshwater production – a review

et al. 2021

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“…Another strategy to vary the membrane surface chemistry or morphology is utilizing nanomaterials to interfere with the IP reaction or embedding the modified nanoparticles with special functional groups (‐OH, ‐NH 2 , ‐COOH) into the skin layer, such as nanozeolite, [ 76 ] GO, [ 103,106 ] TiO 2 , [ 61,70 ] SiO 2 , [ 70,83,107 ] and carbon dots (CDs), [ 55,73 ] etc. Li et al.…”

Section: Strategies Developed For Permselective Nanofilmsmentioning

confidence: 99%

Interfacially Polymerized Thin‐Film Composite Membranes for Organic Solvent Nanofiltration

Guo

et al. 2020

Adv Materials Inter

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Separation and purification on molecular level from organic solvent mixtures are of paramount importance in industries. Organic solvent nanofiltration (OSN) is a pressure‐driven membrane separation process providing an attractive alternative to conventional energy‐intensive technologies. However, devising a solvent stable, scalable membrane with high permeability and excellent selectivity is still a challenge. Interfacially polymerized thin‐film composite (TFC) OSN membranes integrating an ultrathin selective layer and a porous substrate layer are expected to revolutionize advanced membrane separations. New materials and new strategies to achieve a solvent resistant, highly permeable, and highly selective membrane have been developed in recent years. This review analyses the development of the state‐of‐the‐art interfacially polymerized TFC OSN membranes from the view of structures, materials, and methodologies. First, the emerging structures of current TFC OSN membranes are discussed. The exploitation of new materials (polymers, (nano)fibers, inorganic materials) for the preparation of substrate layer is updated. The advances of new aqueous/organic monomers for synthesis of the selective layer are summarized. Furthermore, the proposed strategies for designing permselective TFC membranes are highlighted. Finally, the challenges together with the future prospects of interfacially polymerized TFC membranes for OSN are proposed.

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High flux thin film nanocomposite membrane incorporated with functionalized TiO2@reduced graphene oxide nanohybrids for organic solvent nanofiltration

Cited by 79 publications

References 57 publications

Graphene‐Based Advanced Membrane Applications in Organic Solvent Nanofiltration

Graphene‐Based Advanced Membrane Applications in Organic Solvent Nanofiltration

2D nanosheet enabled thin film nanocomposite membranes for freshwater production – a review

Interfacially Polymerized Thin‐Film Composite Membranes for Organic Solvent Nanofiltration

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