Diamines cross-linked graphene oxide free-standing membranes for ion dialysis separation

Jia, Zhiqian; Wang, Yan; Shi, Weixing; Wang, Jianli

doi:10.1016/j.memsci.2016.07.042

Cited by 104 publications

(31 citation statements)

References 27 publications

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“…At present, a variety of approaches have been employed to fabricate free-standing GO membrane, such as vacuum filtration [ 59 , 60 ], evaporation-driven self-assembly [ 51 ], self-assembly process under ambient conditions [ 61 ], drop casting [ 62 ], and pressurized ultrafiltration (UF) method [ 63 ]. Sun et al [ 62 ] developed free-standing GO membranes via a drop-casting method and investigated their water purification performance.…”

Section: Go-based Membranesmentioning

confidence: 99%

“…For the chemical approaches, separation property of GO membranes can be adjusted by changing GO membranes structure through reducing GO membrane [ 6 , 24 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 ] or intercalating chemical groups such as copper hydroxide nanostrands (CHNs) [ 88 ], diamine monomers [ 59 , 110 , 111 ], dicarboxylic acids with different chain lengths [ 112 ], 1,3,5-benzenetricarbonyl trichloride (TMC) [ 26 ], or soft polymer chains such as poly-(vinylpyrrolidone) (PVP) [ 113 ] and PDI [ 27 ] into GO membranes via covalently cross-linking or electrostatic interactions using the oxygenated functional groups on GO nanosheets, or introducing in-plane nanopores on GO nanosheets [ 114 ], or functionalizing GO sheets using one-step carboxylation via nucleophilic substitution reaction [ 115 ]. A study conducted by Shen et al [ 24 ] demonstrated a facile thermal annealing method for finely adjusting the transport channel of GO membranes by controllably removing oxygenated functional groups on GO sheets, as shown in Figure 7 a. Subnanometer inter-layer spacing within GO membranes could be created by this method and highly-selective gas transport properties can be obtained accordingly.…”

Section: Enhanced Separation Performance Of Go Membranementioning

confidence: 99%

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Recent Developments of Graphene Oxide-Based Membranes: A Review

2017

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Membrane-based separation technology has attracted great interest in many separation fields due to its advantages of easy-operation, energy-efficiency, easy scale-up, and environmental friendliness. The development of novel membrane materials and membrane structures is an urgent demand to promote membrane-based separation technology. Graphene oxide (GO), as an emerging star nano-building material, has showed great potential in the membrane-based separation field. In this review paper, the latest research progress in GO-based membranes focused on adjusting membrane structure and enhancing their mechanical strength as well as structural stability in aqueous environment is highlighted and discussed in detail. First, we briefly reviewed the preparation and characterization of GO. Then, the preparation method, characterization, and type of GO-based membrane are summarized. Finally, the advancements of GO-based membrane in adjusting membrane structure and enhancing their mechanical strength, as well as structural stability in aqueous environment, are particularly discussed. This review hopefully provides a new avenue for the innovative developments of GO-based membrane in various membrane applications.

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Section: Go-based Membranesmentioning

confidence: 99%

Section: Enhanced Separation Performance Of Go Membranementioning

confidence: 99%

Recent Developments of Graphene Oxide-Based Membranes: A Review

2017

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“…More importantly, the specific interactions between ions and functional groups on the MOF frameworks could further enhance the membrane selectivity. [30] It is reported that the ion-binding sites of selective filters can offer a pathway with a lower activation energy for the target ion transport in biological ion channel. [31] For MOF channels, the selective filters can be the unsaturated metal sites or functional groups on the MOF frameworks.…”

Section: Introductionmentioning

confidence: 99%

Metal–Organic Framework‐Based Ion‐Selective Membranes

Hill

Wang

et al. 2021

Adv Materials Technologies

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(2 of 15)www.advmattechnol.de Figure 1. Design of artificial ion-selective membranes based on MOFs with versatile channel structures. a) MOFs with versatile channel structures (i.e., MIL-121 with 1D channels (Reproduced with permission. [38] Copyright 2020, Wiley-VCH), Al-TCPP with 2D interlayers (Reproduced with permission. [52] Copyright 2020, AAAS), and 3D MOFs ZIF-8, HKUST-1 and UiO-66-X with window-cavity channels (Reproduced with permission. [45] Copyright 2020, American Chemical Society.)) for the construction of artificial ion-selective membranes. b) Design of artificial ion-selective MOF-based membranes. The sub-1-nanometer MOF channels serve as ion conduction pathways for ion transport, and selective filters function as specific ion binding sites for ion sieving.

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“…However, pure GO membranes are prone to swell and collapse in water condition. To strengthen the structural stability of GO membranes, a large amount of cross-linking agents were applied, including polymers (Chen et al 2014;Cheng et al 2017;Pan, 2020;Park et al 2009;Suri et al 2019;Tian et al 2013), small molecules (An et al 2011;Feng et al 2016;Hung, 2014;Jia et al 2016;Liu et al 2020;Qian et al 2018;Wang, 2016b;Zhang et al 2020Zhang et al , 2015, ions (Chen, 2017;Gao et al 2019;Lin and Chen 2021;Park et al 2008;Yu et al 2017) and nano materials (Cho, 2019;Dong et al 2020;Shi, 2019;Xi et al 2016). Polyethylenimine (PEI) is a kind of hydrophilic and flexible polymer, and abundant amino group endows PEI molecules with positive charge.…”

Section: Introductionmentioning

confidence: 99%

Laminated graphene oxide membrane for recovery of mercury-containing wastewater by pervaporation

Wang

Qin

et al. 2021

Appl Water Sci

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Mercury (Hg) is a toxic heavy metal contaminant and has very harmful effects for human health. In this work, Hg-containing wastewater with Hg concentration of 6.36 ppb and 9.4 ppb were recovered with polyethylenimine (PEI) cross-linked graphene oxide (GO) layered membrane (c-GO-PEI) by pervaporation. The influence of ionic type, the concentration of Hg and the feed temperature were investigated. The c-GO-PEI exhibited not only high rejection for salts (> 99.97%), Hg (77.5–100%) and non-purgeable organic carbon (NPOC) (67.3–90.8%) but also high flux (30.30 kg·m−2·h−1) to treat with the wastewater. In addition, the flux could be largely recovered after simple washing, indicating the excellent antifouling property of the membrane.

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Diamines cross-linked graphene oxide free-standing membranes for ion dialysis separation

Cited by 104 publications

References 27 publications

Recent Developments of Graphene Oxide-Based Membranes: A Review

Recent Developments of Graphene Oxide-Based Membranes: A Review

Metal–Organic Framework‐Based Ion‐Selective Membranes

Laminated graphene oxide membrane for recovery of mercury-containing wastewater by pervaporation

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