Cargando…
Hierarchical AuNPs-Loaded Fe(3)O(4)/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities
Gold nanoparticles (AuNPs) have attracted widespread attention for their excellent catalytic activity, as well as their unusual physical and chemical properties. The main challenges come from the agglomeration and time-consuming separation of gold nanoparticles, which have greatly baffled the develo...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666482/ https://www.ncbi.nlm.nih.gov/pubmed/29023427 http://dx.doi.org/10.3390/nano7100317 |
_version_ | 1783275323736981504 |
---|---|
author | Guo, Rong Jiao, Tifeng Xing, Ruirui Chen, Yan Guo, Wanchun Zhou, Jingxin Zhang, Lexin Peng, Qiuming |
author_facet | Guo, Rong Jiao, Tifeng Xing, Ruirui Chen, Yan Guo, Wanchun Zhou, Jingxin Zhang, Lexin Peng, Qiuming |
author_sort | Guo, Rong |
collection | PubMed |
description | Gold nanoparticles (AuNPs) have attracted widespread attention for their excellent catalytic activity, as well as their unusual physical and chemical properties. The main challenges come from the agglomeration and time-consuming separation of gold nanoparticles, which have greatly baffled the development and application in liquid phase selective reduction. To solve these problems, we propose the preparation of polyvinyl alcohol(PVA)/poly(acrylic acid)(PAA)/Fe(3)O(4) nanocomposites with loaded AuNPs. The obtained PVA/PAA/Fe(3)O(4) composite membrane by electrospinning demonstrated high structural stability, a large specific surface area, and more active sites, which is conducive to promoting good dispersion of AuNPs on membrane surfaces. The subsequently prepared PVA/PAA/Fe(3)O(4)@AuNPs nanocomposites exhibited satisfactory nanostructures, robust thermal stability, and a favorable magnetic response for recycling. In addition, the PVA/PAA/Fe(3)O(4)@AuNPs nanocomposites showed a remarkable catalytic capacity in the catalytic reduction of p-nitrophenol and 2-nitroaniline solutions. In addition, the regeneration studies toward p-nitrophenol for different consecutive cycles demonstrate that the as-prepared PVA/PAA/Fe(3)O(4)@AuNPs nanocomposites have outstanding stability and recycling in catalytic reduction. |
format | Online Article Text |
id | pubmed-5666482 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-56664822017-11-09 Hierarchical AuNPs-Loaded Fe(3)O(4)/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities Guo, Rong Jiao, Tifeng Xing, Ruirui Chen, Yan Guo, Wanchun Zhou, Jingxin Zhang, Lexin Peng, Qiuming Nanomaterials (Basel) Article Gold nanoparticles (AuNPs) have attracted widespread attention for their excellent catalytic activity, as well as their unusual physical and chemical properties. The main challenges come from the agglomeration and time-consuming separation of gold nanoparticles, which have greatly baffled the development and application in liquid phase selective reduction. To solve these problems, we propose the preparation of polyvinyl alcohol(PVA)/poly(acrylic acid)(PAA)/Fe(3)O(4) nanocomposites with loaded AuNPs. The obtained PVA/PAA/Fe(3)O(4) composite membrane by electrospinning demonstrated high structural stability, a large specific surface area, and more active sites, which is conducive to promoting good dispersion of AuNPs on membrane surfaces. The subsequently prepared PVA/PAA/Fe(3)O(4)@AuNPs nanocomposites exhibited satisfactory nanostructures, robust thermal stability, and a favorable magnetic response for recycling. In addition, the PVA/PAA/Fe(3)O(4)@AuNPs nanocomposites showed a remarkable catalytic capacity in the catalytic reduction of p-nitrophenol and 2-nitroaniline solutions. In addition, the regeneration studies toward p-nitrophenol for different consecutive cycles demonstrate that the as-prepared PVA/PAA/Fe(3)O(4)@AuNPs nanocomposites have outstanding stability and recycling in catalytic reduction. MDPI 2017-10-12 /pmc/articles/PMC5666482/ /pubmed/29023427 http://dx.doi.org/10.3390/nano7100317 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Guo, Rong Jiao, Tifeng Xing, Ruirui Chen, Yan Guo, Wanchun Zhou, Jingxin Zhang, Lexin Peng, Qiuming Hierarchical AuNPs-Loaded Fe(3)O(4)/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities |
title | Hierarchical AuNPs-Loaded Fe(3)O(4)/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities |
title_full | Hierarchical AuNPs-Loaded Fe(3)O(4)/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities |
title_fullStr | Hierarchical AuNPs-Loaded Fe(3)O(4)/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities |
title_full_unstemmed | Hierarchical AuNPs-Loaded Fe(3)O(4)/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities |
title_short | Hierarchical AuNPs-Loaded Fe(3)O(4)/Polymers Nanocomposites Constructed by Electrospinning with Enhanced and Magnetically Recyclable Catalytic Capacities |
title_sort | hierarchical aunps-loaded fe(3)o(4)/polymers nanocomposites constructed by electrospinning with enhanced and magnetically recyclable catalytic capacities |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666482/ https://www.ncbi.nlm.nih.gov/pubmed/29023427 http://dx.doi.org/10.3390/nano7100317 |
work_keys_str_mv | AT guorong hierarchicalaunpsloadedfe3o4polymersnanocompositesconstructedbyelectrospinningwithenhancedandmagneticallyrecyclablecatalyticcapacities AT jiaotifeng hierarchicalaunpsloadedfe3o4polymersnanocompositesconstructedbyelectrospinningwithenhancedandmagneticallyrecyclablecatalyticcapacities AT xingruirui hierarchicalaunpsloadedfe3o4polymersnanocompositesconstructedbyelectrospinningwithenhancedandmagneticallyrecyclablecatalyticcapacities AT chenyan hierarchicalaunpsloadedfe3o4polymersnanocompositesconstructedbyelectrospinningwithenhancedandmagneticallyrecyclablecatalyticcapacities AT guowanchun hierarchicalaunpsloadedfe3o4polymersnanocompositesconstructedbyelectrospinningwithenhancedandmagneticallyrecyclablecatalyticcapacities AT zhoujingxin hierarchicalaunpsloadedfe3o4polymersnanocompositesconstructedbyelectrospinningwithenhancedandmagneticallyrecyclablecatalyticcapacities AT zhanglexin hierarchicalaunpsloadedfe3o4polymersnanocompositesconstructedbyelectrospinningwithenhancedandmagneticallyrecyclablecatalyticcapacities AT pengqiuming hierarchicalaunpsloadedfe3o4polymersnanocompositesconstructedbyelectrospinningwithenhancedandmagneticallyrecyclablecatalyticcapacities |