DC Field | Value | Language |
---|---|---|
dc.contributor.author | Tran, Thi Nhung | ko |
dc.contributor.author | Do, Quoc Cuong | ko |
dc.contributor.author | Kim, Dogun | ko |
dc.contributor.author | Kim, Junho | ko |
dc.contributor.author | Kang, Seoktae | ko |
dc.date.accessioned | 2022-04-13T06:44:45Z | - |
dc.date.available | 2022-04-13T06:44:45Z | - |
dc.date.created | 2022-04-04 | - |
dc.date.created | 2022-04-04 | - |
dc.date.created | 2022-04-04 | - |
dc.date.created | 2022-04-04 | - |
dc.date.issued | 2022-05 | - |
dc.identifier.citation | JOURNAL OF HAZARDOUS MATERIALS, v.430 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | http://hdl.handle.net/10203/292533 | - |
dc.description.abstract | In this study, bio-inspired urchin-like structured hydroxyapatite (UHdA) and its magnetic composite (UHdA@Fe3O4) were developed for efficient and easy separation of cerium ions (Ce3+) from aquatic waste streams. UHdA and UHdA@Fe3O4 exhibited superior Ce3+ adsorption capacities of 248.39 and 230.01 mg/g-UHdA respectively, compared to a commercial HdA (141.71 mg/g-HdA) due to their hierarchical mesoporous structure and large specific surface area. The adsorption of Ce3+ to UHdA and UHdA@Fe3O4 were heterogeneous, pseudo-secondorder-kinetic, and the rate-limiting step was external mass transfer and intra-particle diffusion. Moreover, thermodynamic studies revealed that the adsorption process was spontaneous and endothermic nature. The high selectivity towards Ce3+ in multi-ionic systems is attributed to the strong affinity between strong Lewis acid (Ce3+) and base (PO43- and OH-) interactions. XRD, FTIR, and XPS analysis demonstrated that the adsorption was mainly attributable to the ion exchange of Ce3+ with Ca2+ and to surface complexation. The desorption of Ce3+ was efficiently accomplished using 0.1 M HNO3. The results suggest that UHdA and UHdA@Fe3O4 could be promising choices for the adsorption and recovery of rare earth elements. | - |
dc.language | English | - |
dc.publisher | ELSEVIER | - |
dc.title | Urchin-like structured magnetic hydroxyapatite for the selective separation of cerium ions from aqueous solutions | - |
dc.type | Article | - |
dc.identifier.wosid | 000762824600005 | - |
dc.identifier.scopusid | 2-s2.0-85124752291 | - |
dc.type.rims | ART | - |
dc.citation.volume | 430 | - |
dc.citation.publicationname | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.identifier.doi | 10.1016/j.jhazmat.2022.128488 | - |
dc.contributor.localauthor | Tran, Thi Nhung | - |
dc.contributor.localauthor | Kang, Seoktae | - |
dc.contributor.nonIdAuthor | Do, Quoc Cuong | - |
dc.contributor.nonIdAuthor | Kim, Dogun | - |
dc.contributor.nonIdAuthor | Kim, Junho | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Adsorption | - |
dc.subject.keywordAuthor | Cerium | - |
dc.subject.keywordAuthor | Isotherm | - |
dc.subject.keywordAuthor | Hydroxyapatite | - |
dc.subject.keywordAuthor | Kinetic | - |
dc.subject.keywordAuthor | Rare earth elements | - |
dc.subject.keywordAuthor | Selectivity | - |
dc.subject.keywordPlus | RARE-EARTH-ELEMENTS | - |
dc.subject.keywordPlus | LANTHANIDE SORPTION | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | CALCIUM | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | ADSORBENT | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | RECOVERY | - |
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