Effect of silver nanoparticle (AgNP) location in nanocomposite membrane matrix fabricated with different polymer type on antibacterial mechanism

Sile-Yuksel, Merve; Tas, Bahar; Köseoğlu-İmer, Derya Y.; Koyuncu, İsmail

doi:10.1016/j.desal.2014.05.022

Cited by 98 publications

(49 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of PES membranes with ZnO nanoparticles, two new absorption bands appeared at 1660 cm -1 and at 3100-3600 cm -1 respectively, which could be assigned to O-H groups of adsorbed water by hydrophilic nano-sized ZnO [56][57][58]. observed by other researchers in previous studies [59]. In the same way, the presence of agglomerations could be observed in PES membranes with high concentration of metal nanoparticles, especially in 0.25 wt% ZnO/PES membranes.…”

Section: Morphological Studysupporting

confidence: 55%

Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes

García-Ivars

Iborra–Clar

Alcaina–Miranda

et al. 2015

Journal of Membrane Science

View full text Add to dashboard Cite

ElsevierGarcía Ivars, J.; Iborra Clar, MI.; Alcaina Miranda, MI.; Van Der Bruggen, B. (2015). Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes. ABSTRACTInorganic nanoparticles have been applied as additive in membrane synthesis for improving different properties from the base polymer such as hydrophilicity, fouling resistance or permselectivity. To investigate the changes caused by the presence of the inorganic nanoparticles in the formation of the membrane structure, two different metallic compounds with opposite hydrophilicity were used as additives: hydrophilic zinc oxide (ZnO) and hydrophobic tungsten disulphide (WS 2 ). For this purpose, the effect of these metal nanoparticles at ultra-low concentrations (0.05 and 0.25 wt% metal nanoparticles/polymer ratio) in the preparation of flat-sheet membranes based on polyethersulphone (PES) by immersion-precipitation method was investigated. Nmethyl-2-pyrrolidone (NMP) was used as solvent. The influence of both metal nanoparticles on the characteristics and permselective properties of PES membranes was studied with microscopic observations, contact angle measurements, and filtration experiments. Although the incorporation of metal nanoparticles could turn the system into thermodynamically unstable, the demixing process during formation of membranes was slightly delayed, suppressing the macrovoid formation (remarkably using WS 2 ).Regardless the nature of the metal nanoparticles, results showed an overall improvement in membrane hydrophilicity and permselectivity by adding metal nanoparticles compared to the control PES membrane, demonstrating that the behaviour of both metal nanoparticles at ultra-low concentrations was very similar.

show abstract

Section: Morphological Studysupporting

confidence: 55%

Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes

García-Ivars

Iborra–Clar

Alcaina–Miranda

et al. 2015

Journal of Membrane Science

View full text Add to dashboard Cite

show abstract

“…Among these methods, surface grafting and surface coating are commonly used to enhance anti-fouling property and imparting hydrophilic character to membrane. But these methods only modify outer surface of membrane, not internal pores and also requires post-treatment for membrane fabrication [112]. It has been found that blending inorganic fillers with polymeric membranes enhanced their antifouling property, hydrophilicity and water flux ( Figure 11) [113,114].…”

Section: Modification Of Polymeric Membranesmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

188

View full text Add to dashboard Cite

During last few decades, membrane technology has emerged as an efficient technique over conventional methods due to its high removal capacity, ease in operation and cost effectiveness for wastewater treatment and production of clean water. Membrane based separations are commonly based on polymeric membranes because of their higher flexibility, easily pore forming mechanism, low cost and smaller space for installation as compared to inorganic membranes. Commonly employed membrane fabrication phase inversion method has been shortly reviewed in this article. Major limitation of membrane based separations is fouling and polymeric membranes being hydrophobic in nature are more prone to fouling. Fouling is a deposition of various colloidal particles, macromolecules (polysaccharides, proteins), salts etc. on membrane surface and within pores thus impedes membrane performance, reduces flux and results in high cost. Modification of polymeric membranes due to its tailoring ability with nanomaterials such as metal based and carbon based results in polymeric nano-composite membranes with high antifouling characteristics. Nanomaterials impart high selectivity, permeability, hydrophilicity, thermal stability, mechanical strength, and antibacterial properties to polymeric membranes via blending, coating etc. modification methods. Characterization techniques has also discussed in later section for studying morphological properties and performance of polymer nano-composite membranes. Graphical Abstract

show abstract

“…The strongest inhibition effect was seen for E. coli bacteria. 483 Sile-Yuksel et al [43] showed that the lower viscosity of the 484 casting solution of polysulfone and PES containing Ag nanopar-485 ticles caused the demixing of the fast solvent-nonsolvent or fast 486 membrane formation; therefore, Ag NPs seemed to be desirably 487 gathered along the top layer. So, these membranes showed high 488 ionic silver (Ag + ) diffusivity or release and higher anti-bacterial 489 performance.…”

mentioning

confidence: 98%

Fabrication and characterization of anti-fouling and anti-bacterial Ag-loaded graphene oxide/polyethersulfone mixed matrix membrane

Vatanpour

Shockravi

Zarrabi

et al. 2015

Journal of Industrial and Engineering Chemistry

129

View full text Add to dashboard Cite

Effect of silver nanoparticle (AgNP) location in nanocomposite membrane matrix fabricated with different polymer type on antibacterial mechanism

Cited by 98 publications

References 20 publications

Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes

Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Fabrication and characterization of anti-fouling and anti-bacterial Ag-loaded graphene oxide/polyethersulfone mixed matrix membrane

Contact Info

Product

Resources

About