DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Yun Kon | ko |
dc.contributor.author | Kim, Taegeon | ko |
dc.contributor.author | Kim, Yonghwan | ko |
dc.contributor.author | Harbottle, David | ko |
dc.contributor.author | Lee, Jae Woo | ko |
dc.date.accessioned | 2017-08-08T06:45:30Z | - |
dc.date.available | 2017-08-08T06:45:30Z | - |
dc.date.created | 2017-07-17 | - |
dc.date.created | 2017-07-17 | - |
dc.date.issued | 2017-10 | - |
dc.identifier.citation | JOURNAL OF HAZARDOUS MATERIALS, v.340, pp.130 - 139 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | http://hdl.handle.net/10203/225186 | - |
dc.description.abstract | Potassium copper hexacyanoferrate-immobilized magnetic hydrogel (MHPVA) has been synthesized via a facile freeze/thaw crosslinking method. The citric acid coated Fe3O4 is embedded into the hydrogel matrix to facilitate the dispersion of nano-sized KCuHCF particles for Cs+ removal, followed by the rapid recovery of the composite in a magnetic field. The Cs+ adsorption behavior of the MHPVA is fitted well with the Langmuir isotherm and the pseudo-second-order kinetic model. The MHPVA exhibits both high Cs+ adsorption capacity (82.8 mg/g) and distribution coefficient (Kd) of 1.18 × 106 mL/g (8.3 ppm Cs+, V/m = 1000 mL/g). Sorption of above 90% Cs+ to the MHPVA is achieved in less than 3 h of contact time. Moreover, the MHPVA reveals stable and high Cs+ removal efficiency across a wide pH range from 4 to 10. In terms of Cs+ selectivity, the MHPVA shows above 96% removal efficiency in the presence of 0.01 M competing cations such as Mg2+, Ca2+, Na+, and K+ with 1 ppm of Cs+. From a practical perspective, the MHPVA still exhibits stable and promising selective properties even in groundwater and seawater conditions and after 5 days of contact time the used adsorbent is rapidly recovered leaving a turbidity-free aqueous environment. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | BLUE/GRAPHENE OXIDE NANOCOMPOSITES | - |
dc.subject | CESIUM ION REMOVAL | - |
dc.subject | RADIOACTIVE CESIUM | - |
dc.subject | AQUEOUS-SOLUTION | - |
dc.subject | SELECTIVE REMOVAL | - |
dc.subject | WATER | - |
dc.subject | ADSORPTION | - |
dc.subject | EFFICIENT | - |
dc.subject | MECHANISM | - |
dc.subject | EXCHANGE | - |
dc.title | Highly effective Cs+ removal by turbidity-free potassium copper hexacyanoferrate-immobilized magnetic hydrogels | - |
dc.type | Article | - |
dc.identifier.wosid | 000409149800014 | - |
dc.identifier.scopusid | 2-s2.0-85023602239 | - |
dc.type.rims | ART | - |
dc.citation.volume | 340 | - |
dc.citation.beginningpage | 130 | - |
dc.citation.endingpage | 139 | - |
dc.citation.publicationname | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.identifier.doi | 10.1016/j.jhazmat.2017.06.066 | - |
dc.contributor.localauthor | Lee, Jae Woo | - |
dc.contributor.nonIdAuthor | Kim, Taegeon | - |
dc.contributor.nonIdAuthor | Harbottle, David | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Cesium removal | - |
dc.subject.keywordAuthor | Fukushima | - |
dc.subject.keywordAuthor | Potassium copper hexacyanoferrate | - |
dc.subject.keywordAuthor | Iron oxide nanoparticle | - |
dc.subject.keywordAuthor | Magnetic hydrogel | - |
dc.subject.keywordPlus | BLUE/GRAPHENE OXIDE NANOCOMPOSITES | - |
dc.subject.keywordPlus | CESIUM ION REMOVAL | - |
dc.subject.keywordPlus | RADIOACTIVE CESIUM | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTION | - |
dc.subject.keywordPlus | SELECTIVE REMOVAL | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | EXCHANGE | - |
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