Biomineralization-mimetic preparation of hybrid membranes with ultra-high loading of pristine metal–organic frameworks grown on silk nanofibers for hazard collection in water

Li, Zhishang; Zhou, Guanshan; Dai, Houde; Yang, Mingying; Fu, Yingchun; Li, Yanbin

doi:10.1039/c7ta06924c

Cited by 132 publications

(70 citation statements)

References 58 publications

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“…The Fe-MOF/PAN membranes showed high water flux of 348 L m 2 h −1 with a permeance of 870 L m 2 h −1 bar −1 . Li et al [111] proposed the preparation of MOFs on electrospun silk nanofiber membranes to remove organic pollutants from wastewater. Further investigations showed that the strong interactions between the Pb (II) and the Fe-MOF contributed to the effective removal of the heavy metal, including competitive ion exchange (CIE), electrostatic interactions with the MOF crystals or polymer, and binding to open metal sites of the MOFs.…”

Section: Water Treatmentmentioning

confidence: 99%

Electrospinning of Metal–Organic Frameworks for Energy and Environmental Applications

2019

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organic linkers with a periodic, nanoscaled structure and ultrahigh surface areas. With their tunable pore/cage sizes, flexible skeleton, and large surface-to-volume ratio, [13][14][15][16][17][18][19] MOFs have a large potential for a wide range of applications, including gas storage and separation, rechargeable batteries, supercapacitors, solar cells, nanoreactors, heterogeneous catalysis, or drug delivery. [20][21][22][23][24][25][26][27] Recently, significant efforts have been devoted to the design and synthesis of new MOFs structures and the investigation of their physical or chemical properties. MOFs are generally prepared as bulk form through traditional hydrothermal or solvothermal synthesis. [28][29][30][31] In order to expand the application range, suitable pathways for the structuring of MOF powders into a functional architecture or devices are highly desirable.Currently, intensive efforts are focusing on the structuring of MOFs at the mesoscopic/macroscopic scale for the use as coatings, membranes, or sophisticated architectures in specific devices and applications. [32][33][34][35] A major difference in the structuring of MOFs into complex shapes compared to inorganic microporous materials, such as zeolites or silica, is the fact that most inorganic binders cannot be used for MOFs as these binders usually require heat treatment. The intrinsic fragility of MOFs needs to be considered which is related to the inorganic/organic hybrid character of this class of materials and the resulting limited thermal and mechanical stability. Alternatively, a more effective way to structure MOFs is the combination with polymer materials. The polymer which acts as a binder improves the mechanical flexibility and ensures chemical stability. Numerous methods have been developed for structuring MOF-polymer compositions including hard or soft templates, spin-or dip-coating, spray-drying, printing, or lithography approaches. [36][37][38] The integration of MOFs into a polymer matrix can result in poor MOF-polymer dispersion and compatibility issues owing to the different physical and chemical properties for the two kinds of materials and this is a challenge in some applications, e.g., in MOF-based mixed matrix membranes for gas separation. [39][40][41][42] The poor interfacial compatibility would lead to agglomeration of MOF particles, causing the formation of nonselective voids between the MOFs particles and the polymer.Electrospinning is a fabrication method to produce continuous ultrafine fibers with diameters in the range of a few tens of nanometers to a few micrometers in the form of nonwoven mats, yarns, etc. The mechanism of electrospinning is based Herein, recent developments of metal-organic frameworks (MOFs) structured into nanofibers by electrospinning are summarized, including the fabrication, post-treatment via pyrolysis, properties, and use of the resulting MOF nanofiber architectures. The fabrication and post-treatment of the MOF nanofiber architectures are described systematically by two routes: i) the dire...

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Section: Water Treatmentmentioning

confidence: 99%

Electrospinning of Metal–Organic Frameworks for Energy and Environmental Applications

2019

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“…As a natural phenomenon, the forming process of biomineralization has been thoroughly studied and mimicked in vitro. Based on the mentioned forming process, incorporated with other rising technologies to synthesize new nanomaterials, biomineralization has penetrated into many fields around our life, for instance, mechanical engineering [51][52][53], electrical engineering [54][55][56], environmental engineering [57][58][59], as well as biomedical engineering [60][61][62]. As the pathfinder of human health and life, biomedical engineering has received specific attention and developed into a booming industry.…”

Section: Application Of Biomineralization In Biomedical Engineeringmentioning

confidence: 99%

Biomineralization Forming Process and Bio-inspired Nanomaterials for Biomedical Application: A Review

et al. 2019

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Biomineralization is a process in which organic matter and inorganic matter combine with each other under the regulation of living organisms. Because of the biomineralization-induced super survivability and retentivity, biomineralization has attracted special attention from biologists, archaeologists, chemists, and materials scientists for its tracer and transformation effect in rock evolution study and nanomaterials synthesis. However, controlling the biomineralization process in vitro as precisely as intricate biology systems still remains a challenge. In this review, the regulating roles of temperature, pH, and organics in biominerals forming process were reviewed. The artificially introducing and utilization of biomineralization, the bio-inspired synthesis of nanomaterials, in biomedical fields was further discussed, mainly in five potential fields: drug and cell-therapy engineering, cancer/tumor target engineering, bone tissue engineering, and other advanced biomedical engineering. This review might help other interdisciplinary researchers to bionic-manufacture biominerals in molecular-level for developing more applications of biomineralization.

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“…Li et al reported an efficient and facile route to cover electrospun silk nanofibers with MOFs for high removal efficiency toward [19], (II) MB on CNFs governed by π-π stacking interactions [20], and (III) orange II on titania aerogel via H bonding and electrostatic forces [5]. rhodamine B (RB) and malachite green (MG) [23]. The authors successfully loaded the composite nanofibers with high contents of MOFs, and more importantly, the 3D structure of MOFs was well retained within the silk nanofibrous membrane.…”

Section: Electrospinning Bio-based Polymers For Water Treatmentmentioning

confidence: 99%

Composite Nanofibers: Recent Progress in Adsorptive Removal and Photocatalytic Degradation of Dyes

Phan¹,

Kim²

2020

Composite and Nanocomposite Materials - From Knowledge to Industrial Applications

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This chapter intends to review the state of the art of a new nanomaterial generation based on electrospun composite nanofibers for dye removal from wastewater. Natural polymer-based nanofibers, nanofibers with unique morphology, and carbon nanofibers were comprehensively reviewed as capable carriers for a broad spectrum of functional materials such as metal oxides, zeolite, graphene and graphene oxide (GO), and metal-organic frameworks (MOFs) in the application of dye removal. The various nanostructures, adsorption capacity, advantages, and drawbacks were discussed along with mechanistic actions in the adsorption process and photocatalytic performance that emphasize current research development, opportunities, and challenges. The chapter covers multiple intriguing topics with in-depth discussion and is a valuable reference for researchers who are working on nanomaterials and the treatment of colored waters.

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Biomineralization-mimetic preparation of hybrid membranes with ultra-high loading of pristine metal–organic frameworks grown on silk nanofibers for hazard collection in water

Abstract: The efficient incorporation of porous materials into membranes to prepare hybrid membranes for the development of a separation device for water pollution treatment is described.

Cited by 132 publications

References 58 publications

Electrospinning of Metal–Organic Frameworks for Energy and Environmental Applications

Electrospinning of Metal–Organic Frameworks for Energy and Environmental Applications

Biomineralization Forming Process and Bio-inspired Nanomaterials for Biomedical Application: A Review

Composite Nanofibers: Recent Progress in Adsorptive Removal and Photocatalytic Degradation of Dyes

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