The effectiveness and adsorption mechanism of iron-carbon nanotube composites for removing phosphate from aqueous environments
DC Field | Value | Language |
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dc.contributor.author | Adil, Sawaira | - |
dc.contributor.author | Kim, Jong -Oh | - |
dc.date.accessioned | 2023-05-03T09:52:14Z | - |
dc.date.available | 2023-05-03T09:52:14Z | - |
dc.date.created | 2023-04-06 | - |
dc.date.issued | 2023-02 | - |
dc.identifier.issn | 0045-6535 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/184934 | - |
dc.description.abstract | This study successfully employed iron-carbon nanotubes (Fe-CNT) to recover phosphate (P) from water. We examined the effects of various iron concentrations denoted by Fe-CNT-1 and Fe-CNT-2 on P removal and compared them with pristine carbon nanotubes (CNTs). The adsorption capacity of Fe-CNTs was much better than pristine CNTs. According to the high adsorption capacity, Fe-CNT-2 sample was very effective for P recovery and exhibits similar to 7 times higher P removal efficiency than that of pristine CNTs. The characterization of the as -obtained adsorbent (Fe-CNT-2) and pristine CNTs were performed using X-ray diffraction, Brunauer-Emmett-- Teller method, Field emission scanning electron microscope coupled with energy-dispersive spectroscopy de-tector (FESEM-EDS), X-ray photoelectron spectroscopy and Transmission electron microscopy. Results demonstrated that iron oxide nanoparticles were successfully deposited on the surface of CNT. The adsorption kinetics and isotherm studies for P removal showed pseudo-second-order rate constants (R-2 > 0.99) and the Langmuir isotherm (R-2 > 0.99) respectively, thus revealing that the nature of adsorption was chemisorption. The estimated Langmuir adsorption capacity of Fe-CNT-2 was 36.5 mgP/g or 112 mg PO4/g at an equilibrium time of 3 h. The ionic strength provided by SO42- , NO3-, and Cl- demonstrated no considerable influence on phosphate adsorption. Moreover, the P adsorbed Fe-CNT-2 was efficiently recovered with different concentrations of desorbing reagents, such as NaOH and NaCO32-. Moreover, the findings of X-ray photoelectron spectroscopy (XPS) analysis demonstrated that OH group played a major role in the P removal by Fe-CNT-2. The findings of this study demonstrate that Fe-CNT-2 had a great deal of application as an effective and stable adsorbent for the P recovery from aquatic environments. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | The effectiveness and adsorption mechanism of iron-carbon nanotube composites for removing phosphate from aqueous environments | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Jong -Oh | - |
dc.identifier.doi | 10.1016/j.chemosphere.2022.137629 | - |
dc.identifier.scopusid | 2-s2.0-85145158583 | - |
dc.identifier.wosid | 000937480100001 | - |
dc.identifier.bibliographicCitation | CHEMOSPHERE, v.313, pp.1 - 11 | - |
dc.relation.isPartOf | CHEMOSPHERE | - |
dc.citation.title | CHEMOSPHERE | - |
dc.citation.volume | 313 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 11 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | ACTIVATED CARBON | - |
dc.subject.keywordPlus | PHOSPHORUS REMOVAL | - |
dc.subject.keywordPlus | MAGNETIC COMPOSITES | - |
dc.subject.keywordPlus | HIGHLY EFFICIENT | - |
dc.subject.keywordPlus | MODIFIED BIOCHAR | - |
dc.subject.keywordPlus | METHYL-ORANGE | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | LANTHANUM | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordAuthor | Iron -carbon nanotube | - |
dc.subject.keywordAuthor | Multi -walled carbon nanotubes | - |
dc.subject.keywordAuthor | Phosphate | - |
dc.subject.keywordAuthor | Adsorption | - |
dc.subject.keywordAuthor | Desorption | - |
dc.subject.keywordAuthor | Regeneration | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0045653522041224?via%3Dihub | - |
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