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Deb AKS, Pahan S, Dasgupta K, Panja S, Debnath AK, Dhami PS, Ali SM, Kaushik CP, Yadav JS. Carbon nano tubes functionalized with novel functional group- amido-amine for sorption of actinides. JOURNAL OF HAZARDOUS MATERIALS 2018; 345:63-75. [PMID: 29128727 DOI: 10.1016/j.jhazmat.2017.11.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 10/23/2017] [Accepted: 11/01/2017] [Indexed: 06/07/2023]
Abstract
The manuscript presents the results on the sorption of U(VI), Am(III) & Eu(III) from pH medium by a novel amido-amine functionalized multiwalled carbon nanotube (MWCNT). The novel functional group was introduced in the MWCNT by two step processes and characterized by various instrumental techniques like Scanning Electron Microscopy (SEM), Raman and X-ray Photoelectron Spectroscopy (XPS). The sorption process was found to be highly dependent on the pH of the solution with maximum sorption for both 233U, 241Am & 152+154Eu at pH 7.0. Kinetics of sorption was found to be fast with equilibrium reached in ∼15min and the sorption was found to be following pseudo 2nd order kinetics for the radionuclides. The sorption for both 233U and 152+154Eu followed Langmuir sorption model with maximum sorption capacity of 20.66mg/g and 16.1mg/g respectively. This has been explained by DFT calculations which shows that more negative solvation energy of U(VI) compared to Am(III) and Eu(III) and stronger U-MWCNT-AA complex is responsible for higher sorption capacity of U(VI) compared to Am(III) and Eu(III).The synthesized amido-amine functionalized MWCNT is a very promising candidate for removal of actinides and lanthanides from waste water solution with high efficiency.
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Affiliation(s)
- A K Singh Deb
- Chemical Engineering Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - S Pahan
- Process Development Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - K Dasgupta
- Materials Group, Atomic Research Centre, Trombay,Mumbai, 400085, India
| | - S Panja
- Fuel Reprocessing Division, Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - A K Debnath
- Technical Physics Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - P S Dhami
- Fuel Reprocessing Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Sk M Ali
- Chemical Engineering Division, Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - C P Kaushik
- Waste Management Division Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - J S Yadav
- Fuel Reprocessing Division, Atomic Research Centre, Trombay, Mumbai, 400085, India
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Kumar P, Sengupta A, Deb AKS, Ali SM. Poly(amidoamine) Dendrimer Functionalized Carbon Nanotube for Efficient Sorption of Trivalent f-Elements: A Comparison Between 1stAnd 2ndGeneration. ChemistrySelect 2017. [DOI: 10.1002/slct.201601550] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Parveen Kumar
- Indian Institute of Technology; Mandi, Himachal Pradesh
| | - Arijit Sengupta
- Radiochemistry Division; Bahbha Atomic Research Centre; Mumbai India
| | - Ashish Kumar Singha Deb
- Chemical Engineering Division; Bahbha Atomic Research Centre; Mumbai India
- Homi Bhabha National Institute; Bahbha Atomic Research Centre; Mumbai India
| | - Sk. Musharaf Ali
- Chemical Engineering Division; Bahbha Atomic Research Centre; Mumbai India
- Homi Bhabha National Institute; Bahbha Atomic Research Centre; Mumbai India
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Sengupta A, Sk. J, Boda A, Ali SM. An amide functionalized task specific carbon nanotube for the sorption of tetra and hexa valent actinides: experimental and theoretical insight. RSC Adv 2016. [DOI: 10.1039/c6ra07986e] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An amide functionalized multiwalled carbon nanotube (CNT-DHA) was used for efficient and selective solid phase separation of tetravalent (Th4+) and hexavalent (UO22+) actinides.
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Affiliation(s)
- Arijit Sengupta
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai
- India
| | - Jayabun Sk.
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai
- India
| | - Anil Boda
- Chemical Engineering Division
- Bhabha Atomic Research Centre
- Mumbai
- India
| | - Sk. Musharaf Ali
- Chemical Engineering Division
- Bhabha Atomic Research Centre
- Mumbai
- India
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