Facile synthesis of silver-deposited silanized magnetite nanoparticles and their application for catalytic reduction of nitrophenols
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shin, Kuan Soo | - |
dc.contributor.author | Cho, Young Kwan | - |
dc.contributor.author | Choi, Jeong-Yong | - |
dc.contributor.author | Kim, Kwan | - |
dc.date.available | 2018-05-10T05:26:53Z | - |
dc.date.created | 2018-04-17 | - |
dc.date.issued | 2012-01-31 | - |
dc.identifier.issn | 0926-860X | - |
dc.identifier.uri | http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/12511 | - |
dc.description.abstract | We have demonstrated a facile fabrication of silver-deposited silanized magnetite (Fe3O4/SiO2@Ag) beads, along with their catalytic performance in the reduction of nitrophenols. Initially, 283 +/- 40 nm sized spherical magnetite (Fe3O4) particles composed of similar to 13 nm superparamagnetic nanoparticles were synthesized, and then they were silanized following the modified Stober method. Silica-coated magnetic (Fe3O4/SiO2) nanoparticles are then resistant to oxidation and coagulation. In order to deposit silver onto them, Fe3O4/SiO2 nanoparticles were dispersed in a reaction mixture consisting of ethanolic AgNO3 and butylamine. With this simple and surfactant-free fabrication method, we can avoid any contamination that might make the Fe3O4/SiO2@Ag particles unsuitable for catalytic applications. The as-prepared Fe3O4/SiO2@Ag particles were accordingly used as solid phase catalysts for the reduction of 4-nitrophenol (4-NP) in the presence of sodium borohydride. The reduction of other nitrophenols such as 2-nitrophenol (2-NP) and 3-nitrophenol (3-NP) were also tested using the Fe3O4/SiO2@Ag nanoparticles as catalysts, and their rate of reduction has been found to follow the sequence, 4-NP>2-NP>3-NP. The Fe3O4/SiO2@Ag particles could be separated from the product using an external magnet and be recycled a number of times after the quantitative reduction of nitrophenols. (C) 2011 Elsevier B.V. All rights reserved. | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.relation.isPartOf | APPLIED CATALYSIS A-GENERAL | - |
dc.subject | SURFACE-PLASMON RESONANCE | - |
dc.subject | BIOMEDICAL APPLICATIONS | - |
dc.subject | P-AMINOPHENOL | - |
dc.subject | NANOCRYSTALS | - |
dc.subject | PARTICLES | - |
dc.subject | GOLD | - |
dc.subject | DEPENDENCE | - |
dc.subject | ROUTE | - |
dc.title | Facile synthesis of silver-deposited silanized magnetite nanoparticles and their application for catalytic reduction of nitrophenols | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.apcata.2011.11.006 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | APPLIED CATALYSIS A-GENERAL, v.413, pp.170 - 175 | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000299981500020 | - |
dc.identifier.scopusid | 2-s2.0-84855561371 | - |
dc.citation.endPage | 175 | - |
dc.citation.startPage | 170 | - |
dc.citation.title | APPLIED CATALYSIS A-GENERAL | - |
dc.citation.volume | 413 | - |
dc.contributor.affiliatedAuthor | Shin, Kuan Soo | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Fe3O4 particle | - |
dc.subject.keywordAuthor | Silanization | - |
dc.subject.keywordAuthor | Silver deposition | - |
dc.subject.keywordAuthor | Catalytic reduction | - |
dc.subject.keywordAuthor | Nitrophenol | - |
dc.subject.keywordPlus | SURFACE-PLASMON RESONANCE | - |
dc.subject.keywordPlus | BIOMEDICAL APPLICATIONS | - |
dc.subject.keywordPlus | P-AMINOPHENOL | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | PARTICLES | - |
dc.subject.keywordPlus | GOLD | - |
dc.subject.keywordPlus | DEPENDENCE | - |
dc.subject.keywordPlus | ROUTE | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Soongsil University Library 369 Sangdo-Ro, Dongjak-Gu, Seoul, Korea (06978)02-820-0733
COPYRIGHT ⓒ SOONGSIL 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.