Adsorption Studies of Gadolinium ion on Graphitic Carbon Nitride

Bulk graphitic carbon nitride (g-C3N4) is synthesized by thermal decomposition of urea and used as an adsorbent for gadolinium ion (Gd3+) from aqueous solution. Adsorption capacity of g-C3N4 is found to be influenced by initial Gd3+ concentration, solution pH and contact time. Adsorbed Gd3+is separa...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-03, Vol.338 (1), p.12006
Main Authors: Kuila, S K, Kundu, T K
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Aqueous solutions
Carbon
Carbon nitride
Centrifuges
Fourier transforms
Gadolinium
Infrared spectroscopy
Optical properties
Spectrum analysis
Thermal decomposition
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Summary:Bulk graphitic carbon nitride (g-C3N4) is synthesized by thermal decomposition of urea and used as an adsorbent for gadolinium ion (Gd3+) from aqueous solution. Adsorption capacity of g-C3N4 is found to be influenced by initial Gd3+ concentration, solution pH and contact time. Adsorbed Gd3+is separated from g-C3N4 by ultracentrifuge. Initial and Gd ion accumulated g-C3N4 adsorbent are characterized by X-ray diffraction technique (XRD) for phase identification, UV-visible and Fourier transform infrared (FTIR) spectroscopy for adsorption characteristics and optical property, scanning electron microscopy (SEM) for morphological behaviour along with energy dispersive X-ray spectroscopy (EDS) for elemental study. HNO3(0.1M), NaOH (0.1M) and de-ionized water are used for desorption and around 97% quantitative recovery of Gd ion is observed.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/338/1/012006