Reverse osmosis membranes with guanidine and amine enriched surface for biofouling and organic fouling control

Gao, Yongqiang; Zhao, Song; Qiao, Zhihua; Zhou, Yixuan; Song, Biao; Wang, Zhi; Wang, Jixiao

doi:10.1016/j.desal.2017.12.055

Cited by 70 publications

(28 citation statements)

References 70 publications

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“…The catechol groups are highly responsible for their robust and strong adhesion to virtually all types of surfaces regardless of the substrate's chemistry, which is also a trend to react with a wide range of molecules such as amine and/or thoil‐containing ones . Generally, PDA is increasingly employed as an interfacial glue or reactive platform for the further introduction of other functional groups due to its higher degree of designability and flexibility in the target structures when compared to other polymers . Therefore, it can be proposed that, with PDA layers coated on the surface of various synthetic membranes, chemical groups for anchoring nanoparticles could be easily grafted onto the surface of PDA modified membrane through crosslinking.…”

Section: Introductionmentioning

confidence: 99%

A Readily Accessible Functional Nanofibrous Membrane for High‐Capacity Immobilization of Ag Nanoparticles and Ultrafast Catalysis Application

Liu

Cheng

Kong

et al. 2018

Adv Materials Inter

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IntroductionAs one of the most prevalent noble metal materials, Ag nanoparticles (NPs) possess unique distinct heterogeneous catalytic Constructing macroscopic materials with optimal surface structure to immobilize silver nanoparticles polluted in water environment and further maximize their practical functionality still remains a great challenge. An infrequent strategy is developed to build a flexible material system combining PVA-co-PE nanofiber membrane (NFM) scaffold and mussel-inspired polydopamine (PDA), which provides a formidable surface interacting with polyethyleneimine (PEI). The resultant PEI/PDA/NFM presents an ultrahigh adsorption capacity (727.8 mg g −1 ) to citrate-capped silver nanoparticles much higher than the values reported in the literatures. The broad applicability of the multifunctional composite membranes in water treatment is further demonstrated. Interestingly, a promising concurrent performance of antibacterial, antifouling, and catalysis is acquired in bacterial filtrations. Benefiting from the structure, a plasma process further enhances the catalytic performance of AgNPs-PEI/PDA/NFM with an ultrahigh turnover frequency value: 6.65 × 10 −1 mol mol −1 min −1 , which facilitates the fast degradation treatment of p-nitrophenol (p-NP) in continuous-flow filtration. The excellent properties can be rationally assigned to the optimized surface structure synergistically determined by the high specific area of porous nanofiber scaffold and high substrate adaptability of reactive polydopamine. This implies the superiority of membranes obtained by present strategy in recycling Ag NPs contaminant and further applies it in fast-efficient wastewater treatment applications.

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Section: Introductionmentioning

confidence: 99%

A Readily Accessible Functional Nanofibrous Membrane for High‐Capacity Immobilization of Ag Nanoparticles and Ultrafast Catalysis Application

Liu

Cheng

Kong

et al. 2018

Adv Materials Inter

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“…Secondly, guanidine groups in SNP@PG surface could inhibit the growth of bacteria, based on the great antibacterial ability of poly(GHPEI). 28 Thus, PES/SNP@PG-1 membrane could prevent the blockage of surface pores induced by bacterial attachment and exhibit the best anti-biofouling property compared with PES and PES/SNP membranes. Fig.…”

Section: Anti-biofouling Propertymentioning

confidence: 99%

“…Aer the self-polymerization of dopamine, the primary amine group in poly(GHPEI) reacted with polydopamine through Michael-type addition or Schiff base reaction, leading to the formation of secondary amine group and C]N bond, respectively. 28,30 In addition, the hydrogen bonding could be formed between the amine groups on poly(GHPEI) and catechol or quinones on PDA, according to literature. 31,32 The chemical structure of SNP@PG shell layer is illustrated in Fig.…”

Section: Characterization Of Snp@pg Nanocompositesmentioning

confidence: 99%

“…27 Their antibacterial property against bacteria is generally ascribed to the electrostatic attractions between the cationic guanidine and the negative charged surface of bacterial cell, resulting in the leakage of intracellular contents and consequential bacterial death. 27,28 In this study, a novel hydrophilic and antimicrobial core-shell nanoparticle was synthesized through the chemical graing of poly(guanidine-hexamethylenediamine-PEI) (poly(GHPEI)) on the surface of SNP. As reported in our previous work, 28 poly(GHPEI) is an efficient polymeric bactericide containing plenty of guanidine and amine groups.…”

Section: Introductionmentioning

confidence: 99%

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Hydrophilic and antimicrobial core–shell nanoparticles containing guanidine groups for ultrafiltration membrane modification

et al. 2018

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“…Primary, Secondary, and Tertiary Amines: Many studies have been reported on the use of amine derivatives like chitosan, [100][101][102][103][104][105] polyethylenimine (PEI), [106][107][108][109] guanidine, [110][111][112][113] and dopamine [114][115][116][117] for antibacterial and antifouling applications. After protonation in the presence of water, these derivatives exhibit a net positive charge.…”

Section: Aminesmentioning

confidence: 99%

The Key Role of Modifications in Biointerfaces toward Rendering Antibacterial and Antifouling Properties in Polymeric Membranes for Water Remediation: A Critical Assessment

Samantaray

Madras

Bose

2019

Advanced Sustainable Systems

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Safe drinking water for all is a major challenge and needs critical attention, as freshwater aquifers are rapidly declining. A strategy based on addressing scarcity through membrane‐based purification and desalination can be an immediate and robust solution. The current scientific advances toward tailoring the structure and chemical properties of existing membrane materials have enabled key insights leading to new water purification alternatives. In the first part of the article, the key requirements for water decontamination addressed through state‐of‐the‐art literature on membranes are discussed. In the next part, the specific membrane modification strategies to impede bacterial growth and enhance fouling resistance are discussed, bringing in the underlying mechanisms. Finally, promising next‐generation separation techniques that are inspired by nature, inorganic and carbonaceous nanomaterial‐based membranes, layer‐by‐layer assembly, and dynamic composite membranes, are highlighted. This perspective article will help guide researchers working in this field from both industrial and academic standpoints, especially where the research is focused toward developing strategies to modify the existing solution besides finding alternative and sustainable new materials.

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Reverse osmosis membranes with guanidine and amine enriched surface for biofouling and organic fouling control

Cited by 70 publications

References 70 publications

A Readily Accessible Functional Nanofibrous Membrane for High‐Capacity Immobilization of Ag Nanoparticles and Ultrafast Catalysis Application

A Readily Accessible Functional Nanofibrous Membrane for High‐Capacity Immobilization of Ag Nanoparticles and Ultrafast Catalysis Application

Hydrophilic and antimicrobial core–shell nanoparticles containing guanidine groups for ultrafiltration membrane modification

The Key Role of Modifications in Biointerfaces toward Rendering Antibacterial and Antifouling Properties in Polymeric Membranes for Water Remediation: A Critical Assessment

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