Surface modification of reverse osmosis membranes with zwitterionic coatings: A potential strategy for control of biofouling

Shafi, Hafiz Zahid; Matin, Asif; Khan, Zulfiqar Ahmad; Khalil, Amjad; Gleason, Karen K.

doi:10.1016/j.surfcoat.2015.08.037

Cited by 37 publications

(11 citation statements)

References 35 publications

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“…Physical coating and chemical grafting of zwitterionic materials that possess both negatively and positively charged moieties within the same side chain segment have also been investigated. Surface‐initiated atom‐transfer radical polymerization, initiated chemical vapor deposition, and concentration–polarization‐enhanced graft polymerization are some of the methods that are typically used to coat or graft zwitterionic polymers on the membrane surface . Particularly, owing to strong and stable electrostatic bonds with water, this modification approach is viably used to improve the anti‐biofouling properties of RO TFC membranes .…”

Section: Solutions Towards Energy‐efficient Desalinationmentioning

confidence: 99%

“…Surface-initiated atom-transfer radical polymerization, initiated chemical vapor deposition, andc oncentration-polarization-enhanced graft polymerization are some of the methods that are typically used to coat or graft zwitterionic polymers on the membrane surface. [104,105] Particularly,o wing to strong and stable electrostatic bonds with water, this modification approachi s viably used to improve the anti-biofouling properties of RO TFC membranes. [105][106][107] Wang et al have modified ac ommercial RO membrane with carboxybetaine methacrylate (CBMA) zwitterionicp olymer containingq uaternary ammonium cationsb yr edox-initiated graft polymerizationo fN,N'dimethylaminoethyl methacrylate (DMAEMA), followed by as urface quaternization reaction with 3-bromopropionic acid (3-BPA) to improve the water flux and biofoulingr esistance simultaneously.…”

Section: Membrane Design and Performances In Desalinationmentioning

confidence: 99%

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The Water–Energy Nexus: Solutions towards Energy‐Efficient Desalination

et al. 2017

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Global water shortages across all continents have led to the explosive practice of desalination. However, desalination is undeniably recognized as one of the most energy‐intensive techniques for creating a clean and safe water supply. Cost reduction in different aspects is necessary to make desalination processes affordable and accessible. In fact, the cost of water from desalination facilities is momentously impacted by the energy requirements for water production. As the water production cost cannot be separated from the issue of energy, the desalination community is continuously seeking ways to reduce energy consumption further. Current research focuses on assessing and alleviating the major energy issues by finding ways to improve the energy efficiency of desalination facilities, which would pave the way for overall cost reduction. Improving the process and the efficiencies of materials implies improved water quality and an increase in the quantity produced per unit of energy consumed. This review highlights recent emerging approaches that aim to reduce the energy consumption and, hence, the water production cost of desalination technology. In brief, the advances made in membrane science and technology, the development of emerging desalination processes and their integrated systems, as well as the use of renewable energy and energy‐recovery systems are recognized as effective and feasible solutions towards energy‐efficient desalination to address the water crisis.

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Section: Solutions Towards Energy‐efficient Desalinationmentioning

confidence: 99%

Section: Membrane Design and Performances In Desalinationmentioning

confidence: 99%

The Water–Energy Nexus: Solutions towards Energy‐Efficient Desalination

et al. 2017

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“…These dangling bonds most likely form between amine groups present in the active layer of polyamide RO membranes and help to establish a strong interface via covalent bonding between the membrane surface and the depositing copolymer film. This strong bonding eliminates delamination of deposited copolymer film when placed in water .…”

Section: Introductionmentioning

confidence: 96%

“…Also in other studies, oxygen plasma was used to prepare the surface of polyamide TFC RO membranes for coating of poly(carboxybetaine acrylic acetate) (PCBAA) and pyridine‐based sulfobetaine zwitterionic functional groups . The purpose of oxygen plasma treatment was to create some oxide dangling bonds on the membrane surface.…”

Section: Introductionmentioning

confidence: 99%

“…However, permeate flux was slightly compromised compared to virgin membranes . Moreover, the coated membranes showed remarkable improvement in resisting biopolymers adsorption and reduced attachment of seawater bacterial species . Gleason et al showed that the coating on the RO membranes had good fouling resistance against dissolved chemicals, much greater resistance to bacterial attachment, and excellent chlorine resistance.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of performance of polyamide reverse osmosis membranes using dielectric barrier discharge plasma treatment as a novel surface modification method

Jahangiri

Asadollahi

Mousavi

et al. 2018

Polymer Engineering & Sci

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In this research, surface modification of aromatic polyamide thin film composite (TFC) reverse osmosis (RO) membranes was carried out using dielectric barrier discharge (DBD) plasma treatment to improve the performance and fouling resistance of prepared RO membranes. First, polyamide TFC RO membranes were synthesized via interfacial polymerization of m‐phenylenediamine and trimesoyl chloride monomers over microporous polysulfone support membrane. Next, the DBD plasma treatment with 15 s, 30 s, 60 s, and 90 s duration was used for surface modification. The surface properties of RO membranes were characterized by attenuated total reflectance Fourier transform infrared spectroscopy (ATR‐FTIR), SEM, AFM, and contact angle measurements. The ATR‐FTIR results indicated that DBD plasma treatment caused hydrogen bonding on the surface of RO membranes. Also, the contact angle measurement showed that the hydrophilicity of the membranes was increased due to DBD plasma treatment. The changes in the membranes surface morphology indicated that the surface roughness of the membranes was increased after surface modification. In addition, it was found that the DBD plasma treatment increased the water permeation flux significantly and enhanced sodium chloride (NaCl) salt rejection slightly. Moreover, the filtration of bovine serum albumin revealed that the antifouling properties of the modified membranes had been improved. POLYM. ENG. SCI., 59:E468–E475, 2019. © 2018 Society of Plastics Engineers

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Enhancing the Permeability and Antifouling Properties of Polyamide Composite Reverse Osmosis Membrane by Surface Modification with Zwitterionic Amino Acid l‐Arginine

Chen

Kang

et al. 2019

Adv Materials Inter

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The increase of the permeability and antifouling properties of reverse osmosis (RO) membranes is always significant in desalination. In this study, zwitterionic amino acid l‐Arginine (Arg) is grafted onto the self‐made RO membrane by one‐step method to construct the zwitterionic surface for enhancing the performances of the membranes. X‐ray photoelectron spectroscopy verifies the successful covalent attachment of Arg onto the membrane surface. Atomic force microscopy, contact angle, and zeta potential measurements manifest that the modified membrane surface becomes smoother, more hydrophilic, and less negatively charged. The contact angles decrease from 72.6° to 43.7° after Arg‐modification. For the optimized modified membrane, its water flux increases from original 45.46 to 63.51 L m−2 h−1 (improved by 39.7%); while the salt rejection ascends from 96.42% to 98.08%. Using bovine serum albumin and dodecyltrimethyl ammonium bromide as model foulants, fouling‐resistant properties of the modified membranes are estimated by three‐time cycle filtration tests. The experimental results show that the modified membranes have superior fouling‐resistant and easy‐cleaning properties. Mechanism concerning the roles of grafting Arg in the enhancement of the performances of the resulting membranes is proposed.

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Surface modification of reverse osmosis membranes with zwitterionic coatings: A potential strategy for control of biofouling

Cited by 37 publications

References 35 publications

The Water–Energy Nexus: Solutions towards Energy‐Efficient Desalination

The Water–Energy Nexus: Solutions towards Energy‐Efficient Desalination

Improvement of performance of polyamide reverse osmosis membranes using dielectric barrier discharge plasma treatment as a novel surface modification method

Enhancing the Permeability and Antifouling Properties of Polyamide Composite Reverse Osmosis Membrane by Surface Modification with Zwitterionic Amino Acid l‐Arginine

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