Poly(acryloyl hydrazide)-grafted cellulose nanocrystal adsorbents with an excellent Cr(VI) adsorption capacity
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Sang-Hee | - |
dc.contributor.author | Shin, Seung Su | - |
dc.contributor.author | Park, Chan Hyung | - |
dc.contributor.author | Jeon, Sungkwon | - |
dc.contributor.author | Gwon, Jaegyoung | - |
dc.contributor.author | Lee, Sun-Young | - |
dc.contributor.author | Kim, Sung-Jun | - |
dc.contributor.author | Kim, Hyung-Ju | - |
dc.contributor.author | Lee, Jung-Hyun | - |
dc.date.accessioned | 2021-08-30T19:15:50Z | - |
dc.date.available | 2021-08-30T19:15:50Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-07-15 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/54383 | - |
dc.description.abstract | In this study, we prepared poly(acryloyl hydrazide) (PAH)-grafted cellulose nanocrystal (CNC-PAH) particles via the atom transfer radical polymerization method for application to Cr(VI) adsorption. The closely-packed PAH chains grafted on the cellulose nanocrystal (CNC) surface provide a high density of amine groups that can adsorb Cr(VI) through strong electrostatic, hydrogen bonding and chelating interactions. CNC-PAH exhibited the optimum Cr(VI) adsorption capacity at the solution pH = 3, where its electrostatic attraction with Cr(VI) was maximized. Cr(VI) was chemisorbed in CNC-PAH by following the Langmuir isotherm mechanism (homogeneous monolayer adsorption). The Cr(VI) adsorption kinetics of CNC-PAH was controlled predominantly by intra-particle diffusion resistance imparted by the PAH shell layer. Thermodynamic analysis revealed that Cr(VI) adsorption of CNC-PAH is a spontaneous and endothermic process. Importantly, CNC-PAH grafted with the higher M-w( similar to 50 kg mol(-1)) PAH exhibited a rapid Cr(VI) adsorption rate and remarkably high Cr(VI) adsorption capacity (similar to 457.6 mg g(-1) at 298.15 K), exceeding those of previously reported adsorbents owing to its numerous Cr(VI)-adsorptive amine groups provided by the closely-packed grafted PAH polymers. Furthermore, CNC-PAH showed excellent reusability to maintain its high adsorption ability during repeated adsorption-desorption cycles owing to the covalently binding nature of the PAH polymers. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | HEXAVALENT CHROMIUM | - |
dc.subject | AQUEOUS-SOLUTIONS | - |
dc.subject | CR VI | - |
dc.subject | GRAPHENE OXIDE | - |
dc.subject | NANOFIBER MAT | - |
dc.subject | CU II | - |
dc.subject | REMOVAL | - |
dc.subject | EFFICIENT | - |
dc.subject | COMPOSITE | - |
dc.subject | PERFORMANCE | - |
dc.title | Poly(acryloyl hydrazide)-grafted cellulose nanocrystal adsorbents with an excellent Cr(VI) adsorption capacity | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jung-Hyun | - |
dc.identifier.doi | 10.1016/j.jhazmat.2020.122512 | - |
dc.identifier.scopusid | 2-s2.0-85081646321 | - |
dc.identifier.wosid | 000532832200016 | - |
dc.identifier.bibliographicCitation | JOURNAL OF HAZARDOUS MATERIALS, v.394 | - |
dc.relation.isPartOf | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.title | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.volume | 394 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | HEXAVALENT CHROMIUM | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTIONS | - |
dc.subject.keywordPlus | CR VI | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | NANOFIBER MAT | - |
dc.subject.keywordPlus | CU II | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordAuthor | Cellulose nanocrystal | - |
dc.subject.keywordAuthor | Atom transfer radical polymerization | - |
dc.subject.keywordAuthor | Adsorbents | - |
dc.subject.keywordAuthor | Cr(VI) removal | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.