Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Yanxia, Huang, Lu, He, Wenxuan, Chen, Yiting, Lou, Benyong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
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
_version_ 1783400678391021568
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
work_keys_str_mv AT liyanxia preparationoffunctionalizedmagneticfe3o4aupolydopaminenanocompositesandtheirapplicationforcopperiiremoval
AT huanglu preparationoffunctionalizedmagneticfe3o4aupolydopaminenanocompositesandtheirapplicationforcopperiiremoval
AT hewenxuan preparationoffunctionalizedmagneticfe3o4aupolydopaminenanocompositesandtheirapplicationforcopperiiremoval
AT chenyiting preparationoffunctionalizedmagneticfe3o4aupolydopaminenanocompositesandtheirapplicationforcopperiiremoval
AT loubenyong preparationoffunctionalizedmagneticfe3o4aupolydopaminenanocompositesandtheirapplicationforcopperiiremoval