Hydrophilic polyethyleneimine-TiO2 hybrid layer on polyethersulfone/sulfonated polysulfone blend membrane with antifouling characteristics for the effective separation of oil-in-water emulsions

Matindi, Christine; Kadanyo, Sania; Liu, Gansheng; Hu, Mengyang; Hu, Yunxia; Cui, Zhenyu; Ma, Xiaohua; Yan, Feng; He, Benqiao; Li, Jianxin

doi:10.1016/j.jwpe.2022.102982

Cited by 17 publications

(12 citation statements)

References 44 publications

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Section: Resultsmentioning

confidence: 99%

“…It is interesting to note that the UWOCA serves as a key predictor of the interaction between oil droplets and the membrane surface during the separation of oil-in-water emulsions as well as the antifouling characteristics of the membranes. 60 Permeation Fluxes and Separation Performances of the Membranes. The impact of MXene-based separating layers on the permeate flux was evaluated.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Highly Permeable Sulfonated Polydopamine Integrated MXene Membranes for Efficient Surfactant-Stabilized Oil-in-Water Separation

Baig,

Khan,

Salhi

et al. 2023

Langmuir

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MXene is an incredibly promising two-dimensional material with immense potential to serve as a high-performing separating or barrier layer to develop advanced membranes. Despite the significant progress made in MXene membranes, two major challenges still exist: (i) effectively stacking MXene nanosheets into defect-free membranes and (ii) the high fouling tendency of MXene-based membranes. To address these issues, we employed sulfonated polydopamine (SPD), which simultaneously serves as a binding agent to promote the compact assembling of Ti3C2T x MXenes (MX) nanosheets and improves the antifouling properties of the resulting sulfonated polydopamine-functionalized MX (SPDMX) membranes. The SPDMX membrane was tested for challenging surfactant-stabilized oil-in-water separation with an impressive efficiency of 98%. Moreover, an ultrahigh permeability of 1620 LMH/bar was also achieved. The sulfonation of PD helps in improving the antifouling characteristics of SPDMX by developing a strong hydration layer and enhancing the oleophobicity of the membrane. The underwater SPDMX membrane appeared superoleophobic with an oil contact angle of 153°, whereas the ceramic membrane exhibited an oil contact angle of 137°. The SPDMX membranes showed an improved flux recovery (31%) compared to the nonsulfonated counterpart. This work highlights the appropriate functionalization of MXene as a promising approach to developing MXene membranes with high permeation flux and better antifouling characteristics for oily wastewater treatment.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Highly Permeable Sulfonated Polydopamine Integrated MXene Membranes for Efficient Surfactant-Stabilized Oil-in-Water Separation

Baig,

Khan,

Salhi

et al. 2023

Langmuir

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“…Organic fouling is known as the most dominant fouling that takes place in liquid separation, especially in feed water containing high amounts of natural organic matter [ 88 , 89 ]. Therefore, improving the surface hydrophilicity is an effective way to suppress organic fouling [ 90 , 91 ].…”

Section: Features Of Multidimensional Tio 2 For Li...mentioning

confidence: 99%

Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

et al. 2023

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Membrane technology has become increasingly popular and important for separation processes in industries, as well as for desalination and wastewater treatment. Over the last decade, the merger of nanotechnology and membrane technology in the development of nanocomposite membranes has emerged as a rapidly expanding research area. The key motivation driving the development of nanocomposite membranes is the pursuit of high-performance liquid separation membranes that can address the bottlenecks of conventionally used polymeric membranes. Nanostructured materials in the form of zero to three-dimensions exhibit unique dimension-dependent morphology and topology that have triggered considerable attention in various fields. While the surface hydrophilicity, antibacterial, and photocatalytic properties of TiO2 are particularly attractive for liquid separation membranes, the geometry-dependent properties of the nanocomposite membrane can be further fine-tuned by selecting the nanostructures with the right dimension. This review aims to provide an overview and comments on the state-of-the-art modifications of liquid separation membrane using TiO2 as a classical example of multidimensional nanomaterials. The performances of TiO2-incorporated nanocomposite membranes are discussed with attention placed on the special features rendered by their structures and dimensions. The innovations and breakthroughs made in the synthesis and modifications of structure-controlled TiO2 and its composites have enabled fascinating and advantageous properties for the development of high-performance nanocomposite membranes for liquid separation.

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“…5,6 Among these methods, mixed matrix membranes have been attracting more and more attention due to their ability to combine the advantages of porous membranes and polymer membranes. [7][8][9][10] By incorporating nanofillers into the membrane separation layer, mixed matrix membranes (MMMs) can benefit from the nanoscale effects (such as surface effects and small-size effects) as well as the chemical and structural stability of traditional polymer membrane materials. The synergistic effect results in increased permeability of MMMs, which is expected to overcome the trade-off limitations of membranes and offer advantages such as ease of use, cost-effectiveness, and potential for industrialization.…”

Section: Introductionmentioning

confidence: 99%

“…Researchers have developed various methods to modify polymer membranes in order to overcome the intrinsic trade‐off limitations 5,6 . Among these methods, mixed matrix membranes have been attracting more and more attention due to their ability to combine the advantages of porous membranes and polymer membranes 7–10 . By incorporating nanofillers into the membrane separation layer, mixed matrix membranes (MMMs) can benefit from the nanoscale effects (such as surface effects and small‐size effects) as well as the chemical and structural stability of traditional polymer membrane materials.…”

Section: Introductionmentioning

confidence: 99%

High dye separation performance of novel Cu‐BTC/PES MMMs with water‐stabilized Cu‐BTC nanoparticles

Gai,

Xu,

Pan

et al. 2023

J of Applied Polymer Sci

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Metal–organic frameworks (MOFs), as porous materials, have been extensively applied in a variety of realms, but little of these has been reported used in sewage disposal field owing to its precariousness toward water. Herein, a novel mixed matrix membrane of polyethersulfone (PES) was synthesized using Cu‐BTC‐IPA, a hydrolytic resistance MOF modified with isopropanol (IPA), which exhibits high permeability and water stability. A significant increase in hydrophilicity of the membrane was found in the modified membranes compared with the pure membrane. The porosity measurement confirmed the increased efficiency of mass transfer in the modified membranes. An enhancement in membrane performance was observed by introducing the Cu‐BTC‐IPA filler into the PES matrix, with a remarkable increase (207%) in pure water flux observed compared to that of the pristine PES membrane (264.2 L m−2 h−1 bar−1), reaching 546.4 L m−2 h−1 bar−1. Meanwhile, it exhibited superior rejection of dyestuffs (98.4% for Congo red and 98.9% for Coomassie brilliant blue). In addition, the Cu‐BTC‐IPA/PES mixed matrix membrane demonstrated remarkable anti‐biofouling properties, as evidenced by its high flux recovery rates of bovine serum albumin (BSA) solutions. The consequences indicate that introducing stable MOF into mixed matrix membranes (MMMs) is extremely effective in improving membrane performance for sewage treatment.

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Hydrophilic polyethyleneimine-TiO2 hybrid layer on polyethersulfone/sulfonated polysulfone blend membrane with antifouling characteristics for the effective separation of oil-in-water emulsions

Cited by 17 publications

References 44 publications

Highly Permeable Sulfonated Polydopamine Integrated MXene Membranes for Efficient Surfactant-Stabilized Oil-in-Water Separation

Highly Permeable Sulfonated Polydopamine Integrated MXene Membranes for Efficient Surfactant-Stabilized Oil-in-Water Separation

Modification of Liquid Separation Membranes Using Multidimensional Nanomaterials: Revealing the Roles of Dimension Based on Classical Titanium Dioxide

High dye separation performance of novel Cu‐BTC/PES MMMs with water‐stabilized Cu‐BTC nanoparticles

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