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- Publisher Website: 10.1016/j.jhazmat.2018.05.067
- Scopus: eid_2-s2.0-85048535520
- PMID: 29886361
- WOS: WOS:000440958900018
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Article: Synthesis of FC-supported Fe through a carbothermal process for immobilizing uranium
Title | Synthesis of FC-supported Fe through a carbothermal process for immobilizing uranium |
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Authors | |
Keywords | Carbothermal reduction Fe-FC Uranium Sorption |
Issue Date | 2018 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhazmat |
Citation | Journal of Hazardous Materials, 2018, v. 357, p. 168-174 How to Cite? |
Abstract | The abundant generation of uranium (U), a radioactive nuclide, engenders a severe hazard to the environment. Iron based materials were used to immobilize U from water, however, the immobilization is limited by the agglomeration of nanoparticle Fe. In this study, a novel carbothermal process was proposed to synthesize flour carbon (FC) supported nano-flake Fe (Fe-FC). Scanning electron microscopy (SEM) and nitrogen isotherm adsorption-desorption analysis were conducted to characterize Fe-FC. The immobilization characteristics were investigated through batch sorption experiments. Results indicated that nano-flake was appropriately dispersed on the surface. The sorption capacity reached 19.12 mg/g when the initial concentration of U and the dosage of Fe-FC were 20 mg/L and 1 g/L, respectively. Langmuir isotherm sorption and pseudo-second-order models were fitted well to sorption experimental data. The sorption mechanism is ascribed to surface chemisorptions between U(VI) and Fe-FC. Subsequently, X-ray diffraction (XRD) analysis validated that formation of Fe2UO3 contributed to the favorable immobilization of U and that Fe2UO3 was the fate of U. |
Persistent Identifier | http://hdl.handle.net/10722/259181 |
ISSN | 2023 Impact Factor: 12.2 2023 SCImago Journal Rankings: 2.950 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Kong, L | - |
dc.contributor.author | Zhang, H | - |
dc.contributor.author | Shih, K | - |
dc.contributor.author | Su, M | - |
dc.contributor.author | Diao, Z | - |
dc.contributor.author | Long, J | - |
dc.contributor.author | Hou, L | - |
dc.contributor.author | Song, G | - |
dc.contributor.author | Chen, D | - |
dc.date.accessioned | 2018-09-03T04:02:47Z | - |
dc.date.available | 2018-09-03T04:02:47Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Journal of Hazardous Materials, 2018, v. 357, p. 168-174 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | http://hdl.handle.net/10722/259181 | - |
dc.description.abstract | The abundant generation of uranium (U), a radioactive nuclide, engenders a severe hazard to the environment. Iron based materials were used to immobilize U from water, however, the immobilization is limited by the agglomeration of nanoparticle Fe. In this study, a novel carbothermal process was proposed to synthesize flour carbon (FC) supported nano-flake Fe (Fe-FC). Scanning electron microscopy (SEM) and nitrogen isotherm adsorption-desorption analysis were conducted to characterize Fe-FC. The immobilization characteristics were investigated through batch sorption experiments. Results indicated that nano-flake was appropriately dispersed on the surface. The sorption capacity reached 19.12 mg/g when the initial concentration of U and the dosage of Fe-FC were 20 mg/L and 1 g/L, respectively. Langmuir isotherm sorption and pseudo-second-order models were fitted well to sorption experimental data. The sorption mechanism is ascribed to surface chemisorptions between U(VI) and Fe-FC. Subsequently, X-ray diffraction (XRD) analysis validated that formation of Fe2UO3 contributed to the favorable immobilization of U and that Fe2UO3 was the fate of U. | - |
dc.language | eng | - |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhazmat | - |
dc.relation.ispartof | Journal of Hazardous Materials | - |
dc.subject | Carbothermal reduction | - |
dc.subject | Fe-FC | - |
dc.subject | Uranium | - |
dc.subject | Sorption | - |
dc.title | Synthesis of FC-supported Fe through a carbothermal process for immobilizing uranium | - |
dc.type | Article | - |
dc.identifier.email | Kong, L: kongljun@hku.hk | - |
dc.identifier.email | Shih, K: kshih@hku.hk | - |
dc.identifier.authority | Shih, K=rp00167 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.jhazmat.2018.05.067 | - |
dc.identifier.pmid | 29886361 | - |
dc.identifier.scopus | eid_2-s2.0-85048535520 | - |
dc.identifier.hkuros | 287880 | - |
dc.identifier.volume | 357 | - |
dc.identifier.spage | 168 | - |
dc.identifier.epage | 174 | - |
dc.identifier.isi | WOS:000440958900018 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0304-3894 | - |