Antifouling polyimide membrane with surface-bound silver particles

Zhang, Dong Yan; Liu, Jie; Shi, Yu; Wang, Yan; Liu, Hong Fang; Hu, Qiao Li; Su, Li; Zhu, J.

doi:10.1016/j.memsci.2016.06.012

Cited by 71 publications

(17 citation statements)

References 65 publications

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“…In order to reduce the number of stages in tertiary treatment, researchers introduce membrane capable of antibacterial ability where the traditional polymeric membrane were given the ability to disinfect bacteria. Several type of additives with antibacterial properties has been tested over the years such as silver nitrate [37][38][39][40], chitosan [41][42][43][44], carbon nanotubes [41,[45][46][47], graphene [48][49][50][51][52] and titanium dioxide [53][54][55][56].…”

Section: Introductionmentioning

confidence: 99%

Enhanced permeation performance with incorporation of silver nitrate onto polymeric membrane

Said¹,

Jama’in²,

Sutan³

et al. 2018

JMES

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Enhancing membrane permeation is usually an important parameter in the membrane development for filtration. In this study, polysulfone membrane equipped with different concentration of silver nitrate (0.5-2.0 wt%) were fabricated by phase inversion and later be known as composite membrane (CM) followed by letter (A till F) to indicate membrane composition. This study will investigate the effect of silver nitrate concentration to membrane permeation. Membrane morphology was investigated via scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Based on SEM examination, all composite membrane exhibits sponge-like structure otherwise FTIR for composite membrane with silver nitrate (CM B till CM E) shows additional peak at 1149.57 and 1294.24 indicating silver nitrate presence. In permeability test, composite membrane (CM C) with 1.0wt% silver nitrate achieved 22.25 L/m 2 .h of flux, the highest among all the composite membrane configuration. Thus, the result implied the addition of silver nitrate can increase permeation performance though excessive content may reduce the performance up to 50% of flux reduction. This work provides a better understanding of silver nitrate implication toward membrane permeability therefore provide an insight to any application of silver nitrate in membrane composition.

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Section: Introductionmentioning

confidence: 99%

Enhanced permeation performance with incorporation of silver nitrate onto polymeric membrane

Said¹,

Jama’in²,

Sutan³

et al. 2018

JMES

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“…Reduced Ag NPs on membrane surface was supposed to endow modified AEM with antibacterial property via multi-interactions with the bacteria, including proteins, DNA, and the bacterial cell wall [23,35].…”

Section: Resultsmentioning

confidence: 99%

“…Dopamine deposition was used as mediated active layer for ulterior multifunctional modification. The antibacterial property was realized via the reduction of Ag nanoparticles [23,24,25]. By utilizing the electrons released by the oxidation of catechol to catecholquinone, the Ag nanoparticles (NPs) were in situ synthesized on the membrane surface without adding any external reducing agents [21,26,27].…”

Section: Introductionmentioning

confidence: 99%

Mussel-Inspired Surface Functionalization of AEM for Simultaneously Improved Monovalent Anion Selectivity and Antibacterial Property

et al. 2019

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A facile membrane surface modification process for improving permselectivity and antimicrobial property was proposed. A polydopamine (PDA) coating was firstly fabricated on pristine anion exchange membrane (AEM), followed by in situ reduction of Ag without adding any extra reductant. Finally, 2,5-diaminobenzene sulfonic acid (DSA) was grafted onto PDA layer via Michael addition reaction. The as-prepared AEM exhibited improved permselectivity (from 0.60 to 1.43) and effective inhibition of bacterial growth. In addition, the result of the long-term (90-h continuous electrodialysis) test expressed the excellent durability of the modified layer on membrane surface, because the concentration of Cl− and SO42− in diluted chamber fluctuated ~0.024 and 0.030 mol·L-1 with no distinct decline. The method described in this work makes the full use of multifunctional PDA layer (polymer-like coating, in situ reduction and post-organic reaction), and a rational design of functional AEM was established for better practical application.

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“…They developed novel surface coatings functionalized with Ag nanoparticles for Superior antibacterial activity with Bacillus subtilis and E. coli reduction of 62.7 ± 9.3% and 42.4 ± 5.7% were respectively obtained together with enhanced salt rejections owing to the generation of Ag nanoparticles at the defect sides. An innovative approach was proposed by Yang et al[256], whereby they modified both, the RO coated spacer with uncoated membrane compared to the uncoated membrane and spacer.Nevertheless, several other research studies have been reported highlighting the similar effect of Ag on bacterial inhibition restricting biofilm growth on membrane surfaces[257][258][259][260]…”

mentioning

confidence: 92%

Functional materials in desalination: A review

2019

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This paper reviews various functional materials used in desalination. Desalination of the abundant seawater resource has emerged as a promising technology to meet the current fresh water demands. For improved performance, often functional materials such as photocatalysts, electrocatalysts, photothermal materials, sorbents, antibacterial materials and magnetic materials are utilized in thermal, membranebased and other desalination technologies. With an aim to provide an insight on the existing research on functional materials and the purpose behind using such in desalination, this review collates different research studies of various functional properties and the subsequent materials utilized for those properties. New generation materials such as carbon nanotubes (CNTs) and graphene form a major part, where they exhibit multiple functionalities with improved water transport properties, and thus have been deemed as very attractive enhancers to the desalination technology. Nevertheless, most of the functional materials, such as nano-TiO2, nano-zeolites, graphene, CNTs and magnetic nanoparticles suffer from several limitations such as specialized synthesis techniques, agglomeration, leaching and environmental and health concerns. This review focuses on such challenges and suggests improvements for enhanced incorporation of these in the desalination technology. Lastly, emerging new technologies, advanced fabrication methods and novel functional hybrid materials are reviewed to equip the readers with the latest research trends. Thus, a comprehensive review is essential which will provide current and future researchers an insight on the importance and significance of utilizing functional materials in various desalination technologies.

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Antifouling polyimide membrane with surface-bound silver particles

Cited by 71 publications

References 65 publications

Enhanced permeation performance with incorporation of silver nitrate onto polymeric membrane

Enhanced permeation performance with incorporation of silver nitrate onto polymeric membrane

Mussel-Inspired Surface Functionalization of AEM for Simultaneously Improved Monovalent Anion Selectivity and Antibacterial Property

Functional materials in desalination: A review

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