Improvement of the antifouling performance and stability of an anion exchange membrane by surface modification with graphene oxide (GO) and polydopamine (PDA)

Li, Yujiao; Shi, Shaoyuan; Cao, Hongbin; Zhao, Zhijuan; Su, Chunlei; Wen, Hao

doi:10.1016/j.memsci.2018.08.054

Cited by 101 publications

(51 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fouling caused, promotes decline of the permeate flux and consequent reduction in the performance of the membranes, which have to be constantly cleaned, increasing process costs [ 10 , 11 , 12 ]. In this sense, efforts are focused on methods to minimize fouling effects [ 13 , 14 , 15 , 16 , 17 ], and membrane surface modification (MSM) is currently considered the most favorable strategy [ 13 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of MWCO and Dopamine/Polyethyleneimine Concentrations on Surface Properties and Filtration Performance of Modified Membranes

et al. 2020

View full text Add to dashboard Cite

The mussel-inspired method has been investigated to modify commercial ultrafiltration membranes to induce antifouling characteristics. Such features are essential to improve the feasibility of using membrane processes in protein recovery from waste streams, wastewater treatment, and reuse. However, some issues still need to be clarified, such as the influence of membrane pore size and the polymer concentration used in modifying the solution. The aim of the present work is to study a one-step deposition of dopamine (DA) and polyethyleneimine (PEI) on ultrafiltration membrane surfaces. The effects of different membrane molecular weight cut-offs (MWCO, 20, 30, and 50 kDa) and DA/PEI concentrations on membrane performance were assessed by surface characterization (FTIR, AFM, zeta potential, contact angle, protein adsorption) and permeation of protein solution. Results indicate that larger MWCO membranes (50 kDa) are most benefited by modification using DA and PEI. Moreover, PEI is primarily responsible for improving membrane performance in protein solution filtration. The membrane modified with 0.5:4.0 mg mL−1 (DA: PEI) presented a better performance in protein solution filtration, with only 15% of permeate flux drop after 2 h of filtration. The modified membrane can thus be potentially applied to the recovery of proteins from waste streams.

show abstract

Section: Introductionmentioning

confidence: 99%

Impact of MWCO and Dopamine/Polyethyleneimine Concentrations on Surface Properties and Filtration Performance of Modified Membranes

et al. 2020

View full text Add to dashboard Cite

show abstract

“…As more hydrophilic surfaces with negative zeta potential were prepared, fouling resistance was also improved in the presence of 150 mg/L of SDBS as a model foulant, which denoted the feasibility of these GO-modified AEMs to be used in RED configurations. On the other hand, the same research group also studied the feasibility of combining two modification methods (electrodeposition and coating) to incorporate a thin negatively charged and hydrophilic PDA layer onto the GO-AEMs (modified by electrodeposition), with the purpose of improving their antifouling properties and reducing the roughness of the modified membranes [63]. The authors demonstrated an extensive enhancement of the membrane stability with antifouling behavior in an electrodialysis apparatus composed of one AEM and two CEMs, which operates at a constant voltage of 4 V for 20 h when a smoother and denser PDA/GO layer was incorporated, compared to the GO-modified membrane, without taking into consideration the inclusion of PDA.…”

Section: Electrodeposition Proceduresmentioning

confidence: 99%

Surface Modifications of Anion Exchange Membranes for an Improved Reverse Electrodialysis Process Performance: A Review

2020

View full text Add to dashboard Cite

Reverse electrodialysis (RED) technology represents a promising electro-membrane process for renewable energy harvesting from aqueous streams with different salinity. However, the performance of the key components of the system, that is, the ion exchange membranes, is limited by both the presence of multivalent ions and fouling phenomena, thus leading to a reduced generated net power density. In this context, the behavior of anion exchange membranes (AEMs) in RED systems is more severely affected, due to the undesirable interactions between their positively charged fixed groups and, mostly negatively charged, foulant materials present in natural streams. Therefore, controlling both the monovalent anion permselectivity and the membrane surface hydrophilicity is crucial. In this respect, different surface modification procedures were considered in the literature, to enhance the above-mentioned properties. This review reports and discusses the currently available approaches for surface modifications of AEMs, such as graft polymerization, dip coating, and layer-by-layer, among others, mainly focusing on preparing monovalent permselective AEMs with antifouling characteristics, but also considering hydrophilicity aspects and identifying the most promising modifying agents to be utilized. Thus, the present study aimed at providing new insights for the further design and development of selective, durable, and cost-effective modified AEMs for an enhanced RED process performance, which is indispensable for a practical implementation of this electro-membrane technology at an industrial scale.

show abstract

“…Li et al [97] modified heterogeneous AEMs by electrodeposition of graphene oxide (GO) and exhibited good fouling resistance towards SDBS solution in ED but poor stability. The authors [98] modified the GO layer by electrodeposition PDA coating to improve the antifouling performance and stability. The GO-PDA-modified AEM exhibited highly hydrophilic and negatively charged layer and the introduction of PDA coating helped to construct a smoother and denser composite modifying layer and reduced the roughness of membrane surface.…”

Section: Surface Modification Of Iemmentioning

confidence: 99%

A Review on Ion-exchange Membranes Fouling and Antifouling During Electrodialysis Used in Food Industry: Cleanings and Strategies of Prevention

2020

View full text Add to dashboard Cite

During the last decades, the interest of using ion-exchange membranes (IEMs) in electrodialysis (ED) technologies has emerged in wastewater treatment, drinking water and process water production as well as food industry and more recently in processes of energy conversion and storage. Like in all membrane technologies, the problem of fouling is one of the limitative phenomena of IEM efficiency and lifetime. It mainly leads to an increase in electrical resistance of ED stacks and consequently to increase operating and membrane replacement costs, which directly affects the cost of the final product. In food industry, the composition of the treated solutions and beverages is most often complex and rich in several organic and inorganic compounds which further increases the risks and effects of fouling. Hence, a better knowledge and understanding of IEM fouling phenomena is not only the key to solve the problems and find adequate solutions, but also is one of the main factors driving membrane technology forward. This review is mainly focused on the organic fouling phenomena of IEMs during ED processes in both food and water treatment industries. It principally presents the main cleaning techniques used in industry or experimented at laboratory scale and the recent strategies of fouling prevention.

show abstract

Improvement of the antifouling performance and stability of an anion exchange membrane by surface modification with graphene oxide (GO) and polydopamine (PDA)

Cited by 101 publications

References 34 publications

Impact of MWCO and Dopamine/Polyethyleneimine Concentrations on Surface Properties and Filtration Performance of Modified Membranes

Impact of MWCO and Dopamine/Polyethyleneimine Concentrations on Surface Properties and Filtration Performance of Modified Membranes

Surface Modifications of Anion Exchange Membranes for an Improved Reverse Electrodialysis Process Performance: A Review

A Review on Ion-exchange Membranes Fouling and Antifouling During Electrodialysis Used in Food Industry: Cleanings and Strategies of Prevention

Contact Info

Product

Resources

About