Toxic organic solvent adsorption by a hydrophobic covalent polymer

Dey, Debanjan; Banerjee, Priyabrata

doi:10.1039/c8nj06249h

Cited by 23 publications

(7 citation statements)

References 38 publications

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“…The chemical stability of the as-synthesized CPCMERI-2 has been checked, as reported in our previous work. 36 The material displays good chemical stability in 2 N HCl, 8 N NaOH and even in Lewis acid-containing aqueous solutions.…”

Section: Resultsmentioning

confidence: 99%

Tailor-made synthesis of an melamine-based aminal hydrophobic polymer for selective adsorption of toxic organic pollutants: an initiative towards wastewater purification

2019

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Section: Resultsmentioning

confidence: 99%

Tailor-made synthesis of an melamine-based aminal hydrophobic polymer for selective adsorption of toxic organic pollutants: an initiative towards wastewater purification

2019

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“…Recently, metal–organic frameworks (MOFs), covalent–organic frameworks (COFs), and hydrogen-bonded organic frameworks (HOFs) have been investigated. − Among these materials, MOFs, a new class of functional material constructed by rigid organic linkers and metal ions/metal clusters, were considered as the promising candidates for Xe and Kr separation due to their high surface area, tailorable pore structures, and versatile functionalities. MOFs were used in different fields such as ion-exchange, photonics, sensors, and especially gas storage and separation. − Until now, several MOFs were studied as adsorbents for Xe/Kr separation in both experimental and computational aspects. − Thallapally and co-workers synthesized a microporous MOF (SBMOF-2) to separate Xe and Kr . Wang et al reported a 3D thorium MOF (SCU-11) which exhibited a unique 10-coordinate geometry for metal ion of Th 4+ , resulting in superior Xe/Kr uptake and separation .…”

Section: Introductionmentioning

confidence: 99%

A Robust Calcium–Organic Framework for Effective Separation of Xenon and Krypton

Wang

Liu

Ding

et al. 2021

Crystal Growth & Design

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Separation of Xe/Kr mixtures is significant considering their applications and environmental hazards. However, the similar chemical and physical properties of Xe and Kr raised the difficulty of separation. In this work, a new metal–organic framework (denoted as ECUT-50) was synthesized and investigated. ECUT-50 exhibited obvious adsorptive selectivity of Xe over Kr in both 298 and 273 K. The effective Xe/Kr separation ability was proved using a breakthrough experiment. The excellent separation ability could be due to the suitable pore size of ECUT-50 which matches well with a single Xe atom.

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“…Metal–organic frameworks (MOFs) are highly crystalline materials. Inorganic units (metal ions or metal clusters) and organic ligands bond through covalent or coordinate bonds to form MOFs. − Recently, MOFs have attained much consideration because of their remarkable surface area, high thermal stability, and large pore volume. − Research on MOFs has attracted much attention due to their diverse and tunable porosities . The selection of metal ions, linkers, solvents, and synthetic procedures tunes the MOF with controlled size and shape .…”

Section: Introductionmentioning

confidence: 99%

“…The selection of metal ions, linkers, solvents, and synthetic procedures tunes the MOF with controlled size and shape . MOFs have been widely applied in catalysis, energy and gas storage, drug delivery, adsorption, and sensors. − However, their solubility, chemical stability, and electrical conductivity significantly hamper the full potential of MOFs. MOFs synthesized by the solvothermal method with diverse morphology cannot meet the requirements of a good electrocatalyst.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Assisted Synthesis of Size-Controlled Cu-Metal–Organic Framework Decorated Graphene Oxide Composite: Sustainable Electrocatalyst for the Trace-Level Determination of Nitrite in Environmental Water Samples

et al. 2020

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Excess levels of nitrite ion in drinking water interact with amine functionalized compounds to form carcinogenic nitrosamines, which cause stomach cancer. Thus, it is indispensable to develop a simple protocol to detect nitrite. In this paper, a Cu-metal–organic framework (Cu-MOF) with graphene oxide (GO) composite was synthesized by ultrasonication followed by solvothermal method and then fabricated on a glassy carbon (GC) electrode for the sensitive and selective determination of nitrite contamination. The SEM image of the synthesized Cu-MOF showed colloidosome-like structure with an average size of 8 μm. Interestingly, the Cu-MOF–GO composite synthesized by ultrasonic irradiation followed by solvothermal process produce controlled size of 3 μm colloidosome-like structure. This was attributed to the formation of an exfoliated sheet-like structure of GO by ultrasonication in addition to the obvious influence of GO providing the oxygen functional groups as a nucleation node for size-controlled growth. On the other hand, the composite prepared without ultrasonication exhibited 6.6 μm size agglomerated colloidosome-like structures, indicating the crucial role of ultrasonication for the formation of size-controlled composites. XPS results confirmed the presence of Cu(II) in the as-synthesized Cu-MOF–GO based on the binding energies at 935.5 eV for Cu 2p3/2 and 955.4 eV for Cu 2p1/2. The electrochemical impedance studies in [Fe(CN)6]3–/4– redox couple at the composite fabricated electrode exhibited more facile electron transfer than that with Cu-MOF and GO modified electrodes, which helped to utilize Cu-MOF–GO for trace level determination of nitrite in environmental effluent samples. The Cu-MOF–GO fabricated electrode offered a superior sensitive platform for nitrite determination than the Cu-MOF and GO modified electrodes demonstrating oxidation at less positive potential with enhanced oxidation current. The present sensor detects nitrite in the concentration range of 1 × 10–8 to 1 × 10–4 M with the lowest limit of detection (LOD) of 1.47 nM (S/N = 3). Finally, the present Cu-MOF–GO electrode was successfully exploited for nitrite ion determination in lake and dye contaminated water samples.

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Toxic organic solvent adsorption by a hydrophobic covalent polymer

Abstract: A hydrophobic needle-shaped novel covalent polymer has been synthesized at ambient temperature for adsorption of toxic organics.

Cited by 23 publications

References 38 publications

Tailor-made synthesis of an melamine-based aminal hydrophobic polymer for selective adsorption of toxic organic pollutants: an initiative towards wastewater purification

Tailor-made synthesis of an melamine-based aminal hydrophobic polymer for selective adsorption of toxic organic pollutants: an initiative towards wastewater purification

A Robust Calcium–Organic Framework for Effective Separation of Xenon and Krypton

Ultrasonic Assisted Synthesis of Size-Controlled Cu-Metal–Organic Framework Decorated Graphene Oxide Composite: Sustainable Electrocatalyst for the Trace-Level Determination of Nitrite in Environmental Water Samples

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