Evaluation of 1st and 2nd generation of poly(amidoamine) dendrimer functionalized carbon nanotubes for the efficient removal of neptunium

Sengupta, Arijit; Deb, Ashish Kumar Singha; Gupta, Nishesh Kumar; Kumar, Parveen; Dasgupta, Kinshuk; Ali, Sk. Musharaf

doi:10.1007/s10967-017-5652-9

Cited by 21 publications

(2 citation statements)

References 38 publications

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“…Functionalization of carbon nanotubes by amidation is depending on various parameters as using different type of amine [159] and catalyst allowing high degrees of surface functionalization by attachment of functional groups on CNT surface [151]. Recently, Soubaneh et al [160] used wet method to prepare [14C]-label amide MWNTs by successive reactions of carboxylation, chloroacylation, and amidation using [14C]-labeled ethanolamine for ecotoxicological study.…”

Section: New Strategies Of Functionalization Of Cntsmentioning

confidence: 99%

Carbon Nanotubes (CNTs) from Synthesis to Functionalized (CNTs) Using Conventional and New Chemical Approaches

Salah

Ouslimani

Bousba

et al. 2021

Journal of Nanomaterials

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Carbon nanotubes (CNTs) have emerged worldwide because of their remarkable properties enlarging their field of applications. Functionalization of CNTs is a convenient strategy to tackle low dispersion and solubilization of CNTs in many solvents or polymers. It can be done by covalent or noncovalent surface functionalization that is briefly discussed regarding the current literature. Endohedral and exohedral are conventional methods based on covalent and van der Waals bonding forces that are created through CNT functionalization by various materials. In this paper, a review of new approaches and mechanisms of functionalization of CNTs is proposed, including amidation, fluorination, bromination, chlorination, hydrogenation, and electrophilic addition. Our analysis is supported by several characterization methods highlighting recent improvements hence extending the range of applicability of CNTs.

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Section: New Strategies Of Functionalization Of Cntsmentioning

confidence: 99%

Carbon Nanotubes (CNTs) from Synthesis to Functionalized (CNTs) Using Conventional and New Chemical Approaches

Salah

Ouslimani

Bousba

et al. 2021

Journal of Nanomaterials

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“…The most commonly used method is chemical vapor deposition. Researchers employed carbon nanotubes to adsorb heavy metal ions, such as Cr 6+ , Pb 2+ , and Hg 2+ , and studied the adsorption of radioactive elements such as Th, Pu, and Np in nuclear wastewater. Carbon nanotubes for uranium adsorption were first proposed in 2009 by Schierz and Zänker .…”

Section: Introductionmentioning

confidence: 99%

Study on Uranium Adsorption Property of Carbon Nanotubes Prepared by Molten Salt Electrolysis

Liu

Ma³

et al. 2022

ACS Sustainable Chem. Eng.

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Molten salt electrochemistry to prepare nanocarbon materials by converting CO 2 has attracted much attention.In the present study, carbon nanotubes containing the O element were prepared by converting CO 2 in molten salt. The effects of pH, contact time, and reaction temperature on U(VI) adsorption on the adsorbent were studied. The thermodynamic fitting curve and fitting parameters show that uranyl ions were uniformly adsorbed on the surface of carbon nanotubes as a single layer. The adsorption capacity at 298 K was 150.00 mg g −1 . The selectivity of uranium adsorbents was studied by ion competition experiments. EDS and XPS demonstrate that uranyl ions are adsorbed by the carbon nanotubes, and (UO 2 ) 4 O(OH) 6 is confirmed in the carbon nanotubes after adsorption in the FT-IR, XRD, and XPS analyses. The materials prepared by the molten salt electrochemical method exhibited good application prospects for uranium adsorption.

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Preparation of Amine‐ and Disulfide‐Containing PAMAM‐Based Dendrons for the Functionalization of Hydroxylated Surfaces: XPS as Structural Sensor

et al. 2020

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Herein, we report the synthesis of novel poly(amido amine) [PAMAM]-based dendrons with external amine and disulfide functional groups and an alkoxysilane moiety as the focal point. Four generations (G1-G4) of dendrons were obtained by combining Michael addition and amidation reactions using (3aminopropyl) trimethoxysilane as the starting core; disulfide bridges and amine groups were introduced in the last step by ester amidation with cystamine and ethylendiamine. The resulting dendrons were characterized by Thermogravimetric Analysis (TGA), Fourier Transform Infrared (FTIR), Raman, Atomic Force Microscopy (AFM), Dynamic Light Scattering (DLS) and Zpotential techniques. The growth of the dendrons was monitored by analysing the X-ray Photoelectron Spectroscopy (XPS) high resolution spectra of the Si 2p, N 1s, C 1s, O 1s and S 2p signals for each dendron generation. The results evidence that it is possible to record, with good confidence, the compositional and structural changes that occur during the preparative route by means of XPS technique.[a] Dr.

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Evaluation of 1st and 2nd generation of poly(amidoamine) dendrimer functionalized carbon nanotubes for the efficient removal of neptunium

Cited by 21 publications

References 38 publications

Carbon Nanotubes (CNTs) from Synthesis to Functionalized (CNTs) Using Conventional and New Chemical Approaches

Carbon Nanotubes (CNTs) from Synthesis to Functionalized (CNTs) Using Conventional and New Chemical Approaches

Study on Uranium Adsorption Property of Carbon Nanotubes Prepared by Molten Salt Electrolysis

Preparation of Amine‐ and Disulfide‐Containing PAMAM‐Based Dendrons for the Functionalization of Hydroxylated Surfaces: XPS as Structural Sensor

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