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Preparation of Functionalized Magnetic Fe(3)O(4)@Au@polydopamine Nanocomposites and Their Application for Copper(II) Removal
Polydopamine (PDA) displays many striking properties of naturally occurring melanin in optics, electricity, and biocompatibility. Another valuable feature of polydopamine lies in its chemical structure that incorporates many functional groups such as amine, catechol and imine. In this study, a nanoc...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403698/ https://www.ncbi.nlm.nih.gov/pubmed/30966605 http://dx.doi.org/10.3390/polym10060570 |
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author | Li, Yanxia Huang, Lu He, Wenxuan Chen, Yiting Lou, Benyong |
author_facet | Li, Yanxia Huang, Lu He, Wenxuan Chen, Yiting Lou, Benyong |
author_sort | Li, Yanxia |
collection | PubMed |
description | Polydopamine (PDA) displays many striking properties of naturally occurring melanin in optics, electricity, and biocompatibility. Another valuable feature of polydopamine lies in its chemical structure that incorporates many functional groups such as amine, catechol and imine. In this study, a nanocomposite of magnetic Fe(3)O(4)@Au@polydopamine nanopaticles (Fe(3)O(4)@Au@ PDA MNPs) was synthesized. Carboxyl functionalized Fe(3)O(4)@Au nanoparticles (NPs) were successfully embedded in a layer of PDA through dopamine oxypolymerization in alkaline solution. Through the investigation of adsorption behavior to Cu(II), combined with high sensitive electrochemical detection, the as-prepared magnetic nanocomposites (MNPs) have been successfully applied in the separation and analysis of Cu(II). The experimental parameters of temperature, Cu(II) concentration and pH were optimized. Results showed that the as-prepared MNPs can reach saturation adsorption after adsorbing 2 h in neutral environment. Furthermore, the as-prepared MNPs can be easily regenerated by temperature control and exhibits a good selectivity compared to other metal ions. The prepared Fe(3)O(4)@Au@PDA MNPs are expected to act as a kind of adsorbent for Cu(II) deep removal from contaminated waters. |
format | Online Article Text |
id | pubmed-6403698 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64036982019-04-02 Preparation of Functionalized Magnetic Fe(3)O(4)@Au@polydopamine Nanocomposites and Their Application for Copper(II) Removal Li, Yanxia Huang, Lu He, Wenxuan Chen, Yiting Lou, Benyong Polymers (Basel) Article Polydopamine (PDA) displays many striking properties of naturally occurring melanin in optics, electricity, and biocompatibility. Another valuable feature of polydopamine lies in its chemical structure that incorporates many functional groups such as amine, catechol and imine. In this study, a nanocomposite of magnetic Fe(3)O(4)@Au@polydopamine nanopaticles (Fe(3)O(4)@Au@ PDA MNPs) was synthesized. Carboxyl functionalized Fe(3)O(4)@Au nanoparticles (NPs) were successfully embedded in a layer of PDA through dopamine oxypolymerization in alkaline solution. Through the investigation of adsorption behavior to Cu(II), combined with high sensitive electrochemical detection, the as-prepared magnetic nanocomposites (MNPs) have been successfully applied in the separation and analysis of Cu(II). The experimental parameters of temperature, Cu(II) concentration and pH were optimized. Results showed that the as-prepared MNPs can reach saturation adsorption after adsorbing 2 h in neutral environment. Furthermore, the as-prepared MNPs can be easily regenerated by temperature control and exhibits a good selectivity compared to other metal ions. The prepared Fe(3)O(4)@Au@PDA MNPs are expected to act as a kind of adsorbent for Cu(II) deep removal from contaminated waters. MDPI 2018-05-23 /pmc/articles/PMC6403698/ /pubmed/30966605 http://dx.doi.org/10.3390/polym10060570 Text en © 2018 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 Li, Yanxia Huang, Lu He, Wenxuan Chen, Yiting Lou, Benyong Preparation of Functionalized Magnetic Fe(3)O(4)@Au@polydopamine Nanocomposites and Their Application for Copper(II) Removal |
title | Preparation of Functionalized Magnetic Fe(3)O(4)@Au@polydopamine Nanocomposites and Their Application for Copper(II) Removal |
title_full | Preparation of Functionalized Magnetic Fe(3)O(4)@Au@polydopamine Nanocomposites and Their Application for Copper(II) Removal |
title_fullStr | Preparation of Functionalized Magnetic Fe(3)O(4)@Au@polydopamine Nanocomposites and Their Application for Copper(II) Removal |
title_full_unstemmed | Preparation of Functionalized Magnetic Fe(3)O(4)@Au@polydopamine Nanocomposites and Their Application for Copper(II) Removal |
title_short | Preparation of Functionalized Magnetic Fe(3)O(4)@Au@polydopamine Nanocomposites and Their Application for Copper(II) Removal |
title_sort | preparation of functionalized magnetic fe(3)o(4)@au@polydopamine nanocomposites and their application for copper(ii) removal |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403698/ https://www.ncbi.nlm.nih.gov/pubmed/30966605 http://dx.doi.org/10.3390/polym10060570 |
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