Polydopamine-assisted immobilization of hierarchical zinc oxide nanostructures on electrospun nanofibrous membrane for photocatalysis and antimicrobial activity

Kim, Jun Hee; Joshi, Mahesh Kumar; Lee, Joshua; Park, Chan Hee; Kim, Cheol Sang

doi:10.1016/j.jcis.2017.11.061

Cited by 112 publications

(61 citation statements)

References 57 publications

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“…To create antimicrobial textiles, cellulose fibers represent the most attractive textile substrate for the application of ZnO Ps [11,32,42,66,68,69,72,73,76,82,[84][85][86]88,90,[122][123][124][125][126][127]. In addition to cellulose, ZnO Ps have been applied to different synthetic fibers, such as polyester [16,99,100,128], polypropylene [15,99,129], polyamide [99], polyurethane [109] and cellulose/polyester blends [14,94].…”

Section: Antimicrobial Propertiesmentioning

confidence: 99%

“…The antibacterial activity of textile fibers has been most often tested against Staphylococcus aureus Gram-positive bacteria [14][15][16]42,67,68,72,75,76,82,94,99,126,127,129] and Escherichia coli Gram-negative bacteria [15,16,42,67,68,76,94,99,109,124,126,127,129]. In addition, testing against methicillin-resistant Staphylococcus aureus (MRSA) [82], Staphylococcus epidermidis [82], Propionibacterium acnes [82], Candida albicans [16,42,94,124], Bacillus subtilis [67], Pseudomonas aeruginosa [67], Saccharomyces cerevisiae [125], Gluconobacter cerinus [88], and Klebsiella pneumonia [72] has been performed.…”

Section: Antimicrobial Propertiesmentioning

confidence: 99%

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Zinc Oxide for Functional Textile Coatings: Recent Advances

2019

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The use of ZnO for the functionalization of textile substrates is growing rapidly, since it can provide unique multifunctional properties, such as photocatalytic self-cleaning, antimicrobial activity, UV protection, flame retardancy, thermal insulation and moisture management, hydrophobicity, and electrical conductivity. This paper aims to review the recent progress in the fabrication of ZnO-functionalized textiles, with an emphasis on understanding the specificity and mechanisms of ZnO action that impart individual properties to the textile fibers. The most common synthesis and application processes of ZnO to textile substrates are summarized. The influence of ZnO concentration, particle size and shape on ZnO functionality is presented. The importance of doping and coupling procedures to enhance ZnO performance is highlighted. The need to use binding and seeding agents to increase the durability of ZnO coatings is expressed. In addition to functional properties, the cytotoxicity of ZnO coatings is also discussed. Future directions in the use of ZnO for textile functionalization are identified as well.

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Section: Antimicrobial Propertiesmentioning

confidence: 99%

Section: Antimicrobial Propertiesmentioning

confidence: 99%

Zinc Oxide for Functional Textile Coatings: Recent Advances

2019

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“…Usually TiO 2 nanoparticles are used to form a photocatalytic layer on the membranes; however, recent literature shows that PMs modified with other photocatalysts, such as ZnO [56][57][58], Cu 2 O [59], Fe 2 O 3 [60], ZnIn 2 S 4 [61], reduced graphene oxide with Bi 2 WO 6 [62], Bi 12 O 17 Cl 2 with dopamine [63] and others are also effective in degradation of pollutants in water. Most of these photocatalysts increase the hydrophilicity of the membranes which leads to an increase of the permeate flux.…”

Section: Pmrs With Immobilized Photocatalyst (Pmrs With Pms)mentioning

confidence: 99%

“…Also, polymer membranes can be modified by the dip-coating approach. Kim et al [56] functionalized polyurethane (PU) electrospun nanofiber membranes by dipping the nanofibers in an aqueous dopamine hydrochloride solution, washing with distilled water and then immersing in aqueous suspension of ZnO nanoparticles in a shaking incubator and drying. Phase inversion technique (2) is used for the preparation of polymer membranes.…”

Section: Pmrs With Immobilized Photocatalyst (Pmrs With Pms)mentioning

confidence: 99%

Overview of Photocatalytic Membrane Reactors in Organic Synthesis, Energy Storage and Environmental Applications

et al. 2019

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This paper presents an overview of recent reports on photocatalytic membrane reactors (PMRs) in organic synthesis as well as water and wastewater treatment. A brief introduction to slurry PMRs and the systems equipped with photocatalytic membranes (PMs) is given. The methods of PM production are also presented. Moreover, the process parameters affecting the performance of PMRs are characterized. The applications of PMRs in organic synthesis are discussed, including photocatalytic conversion of CO2, synthesis of KA oil by photocatalytic oxidation, conversion of acetophenone to phenylethanol, synthesis of vanillin and phenol, as well as hydrogen production. Furthermore, the configurations and applications of PMRs for removal of organic contaminants from model solutions, natural water and municipal or industrial wastewater are described. It was concluded that PMRs represent a promising green technology; however, before the application in industry, additional studies are still required. These should be aimed at improvement of process efficiency, mainly by development and application of visible light active photocatalysts and novel membranes resistant to the harsh conditions prevailing in these systems.

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“…In particular, polymeric membranes represent the most popular organic materials used to prepare PMs. Typical polymers that have been considered as membrane material include polyamide [51], polyvinylidene fluoride (PVDF) [52], polyethersulfone (PES) [53], polyurethane (PU) [54], polyethylene terephthalate (PET) [55], polyacrylonitrile (PAN) [56], and polytetrafluoroethylene (PTFE) [57].…”

Section: Preparation and Choice Of Materials To Manufacture Pmsmentioning

confidence: 99%

Photocatalytic Membranes in Photocatalytic Membrane Reactors

et al. 2018

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The present work gives a critical overview of the recent progresses and new perspectives in the field of photocatalytic membranes (PMs) in photocatalytic membrane reactors (PMRs), thus highlighting the main advantages and the still existing limitations for large scale applications in the perspective of a sustainable growth. The classification of the PMRs is mainly based on the location of the photocatalyst with respect to the membranes and distinguished in: (i) PMRs with photocatalyst solubilized or suspended in solution and (ii) PMRs with photocatalyst immobilized in/on a membrane (i.e., a PM). The main factors affecting the two types of PMRs are deeply discussed. A multidisciplinary approach for the progress of research in PMs and PMRs is presented starting from selected case studies. A special attention is dedicated to PMRs employing dispersed TiO 2 confined in the reactor by a membrane for wastewater treatment. Moreover, the design and development of efficient photocatalytic membranes by the heterogenization of polyoxometalates in/on polymeric membranes is discussed for applications in environmental friendly advanced oxidation processes and fine chemical synthesis.The Process Intensification (PI) strategy [5,6] is recognized as an efficient tool for the realization of this sustainable growth. The PI strategy comprises an innovative equipment design and process development methods, being able to improve manufacturing and processing, by decreasing production costs, equipment size, energy consumption, waste generation, while improving process efficiency, remote control, information fluxes, and process flexibility [7]. MRs are specific example of reactive separations well responding to the requests of the PI strategy, coupling a reaction with a membrane separation process, not only at equipment level, but by realizing functional synergies between the operations involved [6]. This synergic combination can have several advantages in comparison with traditional reactors depending on the specific functions performed by the membrane [8]. With respect to traditional reactive separations (e.g., reactive distillation, reactive adsorption, reactive crystallization/precipitation), MRs have the advantage to use intrinsically more clean and energy-efficient separation routes [6]. Membrane separations are in fact typically characterized by lower operating temperature, in comparison with thermal separation processes, such as distillation, and they might offer a solution in the case of catalysts or products with a limited thermal stability. Additionally, membrane separation processes are able to separate nonvolatile components by a difference in dimensions, charge, or volatility.The selective transport of the products and/or the reagents through the membrane can increase the yield and/or the selectivity of some processes. Typical examples are esterification and de-hydrogenation reactions (thermodynamically controlled reactions), in which the removal of water or hydrogen, respectively, increases the reaction yield. The extractio...

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Polydopamine-assisted immobilization of hierarchical zinc oxide nanostructures on electrospun nanofibrous membrane for photocatalysis and antimicrobial activity

Cited by 112 publications

References 57 publications

Zinc Oxide for Functional Textile Coatings: Recent Advances

Zinc Oxide for Functional Textile Coatings: Recent Advances

Overview of Photocatalytic Membrane Reactors in Organic Synthesis, Energy Storage and Environmental Applications

Photocatalytic Membranes in Photocatalytic Membrane Reactors

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