A MOF/graphite oxide hybrid (MOF: HKUST-1) material for the adsorption of methylene blue from aqueous solution

Li, Ling; Liu, Xiao Lan; Geng, Hong Yun; Hu, Bin; Song, Gong Wu; Xu, Zu Shun

doi:10.1039/c3ta11478c

Cited by 278 publications

(130 citation statements)

References 25 publications

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“…The adsorption superiority of the Cu-BTC/PI nanofi bers can be attributed to their special structural features. [ 13 ] The Cu-BTC nanocrystals were well grown on the PI nanofi bers, and hierarchical nanofi bers with a high volume fraction of Cu-BTC can be obtained. In addition, the structure of the hierarchical nanofi bers prevented the aggregation of Cu-BTC nanocrystals, thus resulting in a large adsorption surface area.…”

Section: Resultsmentioning

confidence: 97%

Immobilization Seeding Layers Using Precursor for Fabricating Core-Shell Polyimide/Cu-BTC Hierarchical Nanofibers with High Gas Separation and Adsorption of Methylene Blue from Aqueous Solution

Chang

Zeng

2016

Macromol. Chem. Phys.

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Metal-organic frameworks (MOFs), also known as porous coordination polymers, are a class of crystalline porous materials consisting of metal ion nodes held together by multitopic organic ligands. Among MOFs, Cu-BTC is a well-studied benchmark MOF. In practical applications, supported porous and stable MOFs on the surface of nanofi bers, which provide a high specifi c surface area and prevent aggregation of the microstructure, may be very useful. This paper reports a facile strategy for the synthesis of core-shell polyimide/Cu-BTC hierarchical nanofi bers by combining electrospinning, step-by-step seeding, and hydrothermal process. The Cu-BTC nanocrystals can be well immobilized onto the surface of polyimide nanofi bers. The hierarchical nanofi bers exhibited high gas separation and adsorption of methylene blue from aqueous solution.

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Section: Resultsmentioning

confidence: 97%

Immobilization Seeding Layers Using Precursor for Fabricating Core-Shell Polyimide/Cu-BTC Hierarchical Nanofibers with High Gas Separation and Adsorption of Methylene Blue from Aqueous Solution

Chang

Zeng

2016

Macromol. Chem. Phys.

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“…Metal-ligand complex, consisting of ligands interconnected by metallic nodes, has achieved remarkable progress in supermolecular assembly, adsorption, biosensor, and catalysis [25][26][27][28]. Metal ions, as coordinating centre, significantly enrich materials property and a specific application such as stimuli responsive, self-healing, attractive redox, and feasible assembly property can be obtained via deliberately selecting precursors [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

Chai

Wang

Zhang

et al. 2015

Carbon

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“…This agrees with IR analysis by a different study stating that the symmetric stretching of the carboxyl group in the HKUST-1 is detected between 1384 and 1405 cm −1 . [21] Results of residual ammonia per unit mass of adsorbant are listed in Table 3. The lower the residual ammonia values the greater the adsorbing capacity.…”

Section: Growth Of Hkust-1mentioning

confidence: 99%

Functional Cross‐Linked Electrospun Polyvinyl Alcohol Membranes and Their Potential Applications

Truong

Choi

Mardel

et al. 2017

Macro Materials & Eng

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range of applications. [1][2][3] It is a suitable polymer for the novice electrospinning to produce nanofibers as it is inexpensive, nontoxic, and water soluble. However, due to its water solubility, it needs to be stabilized, for example, by cross-linking to enable its practical application in waterbased environments to be realized. There are several studies demonstrating cross-linking of electrospun PVA membranes and their water stabilization. [4][5][6][7][8][9] Three major cross-linking methods have been described in the literature but each of these methods has its own problems in scaling up and cross-linking efficiency.(i) Immersion of electrospun membranes into an organic solvent (ii) Exposure of electrospun membranes to reagent vapor (iii) Addition of a cross-linker/catalyst to electrospinning solutionsThe first approach involving the use of an organic solvent is the simplest approach. Solvents such as Polyvinyl alcohol (PVA) is a water soluble polymer that requires further treatment to be stabilized before it can be used in aqueous environments. Electrospun PVA is cross-linked by incorporating cross-linking agents directly into the electrospinning solution followed by post-electrospinning thermal treatments to attain stability in aqueous environments. Previously published works on post-treatments include glutaraldehyde vapor exposure or soaking in organic solvents such as ethanol. However, these treatments incur lots of difficulties and hazards especially in scale production. In this study, with a view of imminent scale-up production required, fabricating electrospun cross-linked PVA is investigated without using catalysts, toxic vapor exposure, or solvent treatment. To produce cross-linked electrospun PVA membranes, citric acid, maleic acid, and polyacrylic acid are, respectively, added to PVA solution prior to electrospinning. Two potential applications are examined; the first is to use the membranes as produced for metal uptake in aqueous systems. The second application is for ammonia adsorption after decorating the membranes with a metal organic framework, copper benzene-1,3,5-tricarboxylate (HKUST-1).

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A MOF/graphite oxide hybrid (MOF: HKUST-1) material for the adsorption of methylene blue from aqueous solution

Cited by 278 publications

References 25 publications

Immobilization Seeding Layers Using Precursor for Fabricating Core-Shell Polyimide/Cu-BTC Hierarchical Nanofibers with High Gas Separation and Adsorption of Methylene Blue from Aqueous Solution

Immobilization Seeding Layers Using Precursor for Fabricating Core-Shell Polyimide/Cu-BTC Hierarchical Nanofibers with High Gas Separation and Adsorption of Methylene Blue from Aqueous Solution

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

Functional Cross‐Linked Electrospun Polyvinyl Alcohol Membranes and Their Potential Applications

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