Sorption of rare-earth erbium from aqueous solution onto sol-gel-derived zirconia
Zirconia powder was synthesized via sol gel method and used for erbium sorption. The adsorption is strongly dependent on pH of the medium where the removal efficiency increases as the pH turns to alkaline range. The process was very fast initially and maximum adsorption was attained within...
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| Format: | Article |
| Language: | English |
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Association of Chemical Engineers of Serbia
2016-01-01
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| Series: | Hemijska Industrija |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0367-598X/2016/0367-598X1500040S.pdf |
| _version_ | 1811276954720010240 |
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| author | Salem Nafisa A. Yakout Sobhy M. |
| author_facet | Salem Nafisa A. Yakout Sobhy M. |
| author_sort | Salem Nafisa A. |
| collection | DOAJ |
| description | Zirconia powder was synthesized via sol gel method and used for erbium
sorption. The adsorption is strongly dependent on pH of the medium where the
removal efficiency increases as the pH turns to alkaline range. The process
was very fast initially and maximum adsorption was attained within 60 min of
contact. Pseudo-second-order model and homogeneous particle diffusion model
(HPDM) was found to be the best to correlate the diffusion of erbium into
zirconia particles. Adsorption thermodynamic parameters were calculated.
Erbium adsorption is an endothermic (ΔH > 0) and good affinity of erbium ions
towards the zirconia (ΔS > 0). |
| first_indexed | 2024-04-13T00:07:01Z |
| format | Article |
| id | doaj.art-911167641d3c4300a79bd8a767af63c4 |
| institution | Directory Open Access Journal |
| issn | 0367-598X 2217-7426 |
| language | English |
| last_indexed | 2024-04-13T00:07:01Z |
| publishDate | 2016-01-01 |
| publisher | Association of Chemical Engineers of Serbia |
| record_format | Article |
| series | Hemijska Industrija |
| spelling | doaj.art-911167641d3c4300a79bd8a767af63c42022-12-22T03:11:12ZengAssociation of Chemical Engineers of SerbiaHemijska Industrija0367-598X2217-74262016-01-0170438339010.2298/HEMIND150911040S0367-598X1500040SSorption of rare-earth erbium from aqueous solution onto sol-gel-derived zirconiaSalem Nafisa A.0Yakout Sobhy M.1Egyptian ministry of education, Cairo, EgyptKing Saud University, College of Science, Biochemistry Department, Riyadh, Kingdom of Saudi Arabia + Hot Laboratories Center, Atomic Energy Authority, Cairo, EgyptZirconia powder was synthesized via sol gel method and used for erbium sorption. The adsorption is strongly dependent on pH of the medium where the removal efficiency increases as the pH turns to alkaline range. The process was very fast initially and maximum adsorption was attained within 60 min of contact. Pseudo-second-order model and homogeneous particle diffusion model (HPDM) was found to be the best to correlate the diffusion of erbium into zirconia particles. Adsorption thermodynamic parameters were calculated. Erbium adsorption is an endothermic (ΔH > 0) and good affinity of erbium ions towards the zirconia (ΔS > 0).http://www.doiserbia.nb.rs/img/doi/0367-598X/2016/0367-598X1500040S.pdferbiumzirconiasol gelkineticsthermodynamics |
| spellingShingle | Salem Nafisa A. Yakout Sobhy M. Sorption of rare-earth erbium from aqueous solution onto sol-gel-derived zirconia Hemijska Industrija erbium zirconia sol gel kinetics thermodynamics |
| title | Sorption of rare-earth erbium from aqueous solution onto sol-gel-derived zirconia |
| title_full | Sorption of rare-earth erbium from aqueous solution onto sol-gel-derived zirconia |
| title_fullStr | Sorption of rare-earth erbium from aqueous solution onto sol-gel-derived zirconia |
| title_full_unstemmed | Sorption of rare-earth erbium from aqueous solution onto sol-gel-derived zirconia |
| title_short | Sorption of rare-earth erbium from aqueous solution onto sol-gel-derived zirconia |
| title_sort | sorption of rare earth erbium from aqueous solution onto sol gel derived zirconia |
| topic | erbium zirconia sol gel kinetics thermodynamics |
| url | http://www.doiserbia.nb.rs/img/doi/0367-598X/2016/0367-598X1500040S.pdf |
| work_keys_str_mv | AT salemnafisaa sorptionofrareeartherbiumfromaqueoussolutionontosolgelderivedzirconia AT yakoutsobhym sorptionofrareeartherbiumfromaqueoussolutionontosolgelderivedzirconia |