Journal ArticleDOI
Diglycolamide functionalized multi-walled carbon nanotubes for removal of uranium from aqueous solution by adsorption
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TLDR
In this paper, the adsorption capacity of diglycolamide functionalized multi-walled carbon nanotubes (DGA-MWCNTs) was investigated using FT-IR spectroscopy, XRD and SEM analysis.Abstract:
Diglycolamide functionalized multi-walled carbon nanotubes (DGA-MWCNTs) were synthesized by sequential chemical reactions for removal of uranium from aqueous solution. Characterization studies were carried out using FT-IR spectroscopy, XRD and SEM analysis. Adsorption of uranium from aqueous solution on this material was studied as a function of nitric acid concen- tration, adsorbent dose and initial uranium concentration. The uranium adsorption data on DGA-MWCNTs followed the Langmuir and Freundlich adsorption isotherms. The adsorption capacity of DGA-MWCNTs as well as adsorp- tion isotherms and the effect of temperature on uranium ion adsorption were investigated. The standard enthalpy, entropy, and free energy of adsorption of the uranium with DGA-MWCNTs were calculated to be 6.09 kJ mole -1 , 0.106 kJ mole -1 K -1 and -25.51 kJ mole -1 respectively at 298K. The results suggest that DGA-MWCNTs can be used as efficient adsorbent for uranium ion removal.read more
Citations
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Sustainable technologies for water purification from heavy metals: review and analysis
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"Stereoscopic" 2D super-microporous phosphazene-based covalent organic framework: Design, synthesis and selective sorption towards uranium at high acidic condition.
Shuang Zhang,Xiaosheng Zhao,Bo Li,Chiyao Bai,Yang Li,Lei Wang,Rui Wen,Meicheng Zhang,Lijian Ma,Shoujian Li +9 more
TL;DR: The design and synthesis of a new "stereoscopic" 2D super-microporous phosphazene-based covalent organic framework (MPCOF) is reported by using hexachorocyclotriphosphazene (a P-containing monomer in a C3-like spatial configuration) and p-phenylenediamine (a linker).
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Adsorption of uranium from aqueous solution by PAMAM dendron functionalized styrene divinylbenzene
TL;DR: A new polymeric chelating resin was prepared by growing third generation poly(amido)amine (PAMAMG3) dendron on the surface of styrene divinylbenzene (SDB) and characterized by FTIR, TGA and SEM, finding the uranium adsorption on PAMamG3-SDB was found to be endothermic and spontaneous in nature.
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Competitive adsorption of Pb2+, Cu2+ and Cd2+ ions from aqueous solutions by multiwalled carbon nanotubes
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Adsorption of heavy metal ions with carbon nanotubes
Anna Stafiej,Krystyna Pyrzynska +1 more
TL;DR: Carbon nanotubes (CNTs) were employed as adsorbent to study the adsorption characteristics of some divalent metal ions (Cu, Co, Cd, Zn, Mn, Pb) as discussed by the authors.