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AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds
In this research, a facile and effective approach was developed for the preparation of well-designed AuPd alloyed catalysts supported on magnetic halloysite nanotubes (HNTs@Fe(3)O(4)@AuPd). The microstructure and the magnetic properties of HNTs@Fe(3)O(4)@AuPd were confirmed by transmission electron...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666498/ https://www.ncbi.nlm.nih.gov/pubmed/29039761 http://dx.doi.org/10.3390/nano7100333 |
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author | Jia, Lei Zhou, Tao Xu, Jun Li, Fenghai Xu, Zhouqing Zhang, Beibei Guo, Shengli Shen, Xiaoke Zhang, Wensheng |
author_facet | Jia, Lei Zhou, Tao Xu, Jun Li, Fenghai Xu, Zhouqing Zhang, Beibei Guo, Shengli Shen, Xiaoke Zhang, Wensheng |
author_sort | Jia, Lei |
collection | PubMed |
description | In this research, a facile and effective approach was developed for the preparation of well-designed AuPd alloyed catalysts supported on magnetic halloysite nanotubes (HNTs@Fe(3)O(4)@AuPd). The microstructure and the magnetic properties of HNTs@Fe(3)O(4)@AuPd were confirmed by transmission electron microscopy (TEM), high resolution TEM (HRTEM), energy-dispersive X-ray spectroscopy (EDS), and vibrating sample magnetometry (VSM) analyses. The catalysts, fabricated by a cheap, environmentally friendly, and simple surfactant-free formation process, exhibited high activities during the reduction of 4-nitrophenol and various other nitroaromatic compounds. Moreover, the catalytic activities of the HNTs@Fe(3)O(4)@AuPd nanocatalysts were tunable via adjusting the atomic ratio of AuPd during the synthesis. As compared with the monometallic nanocatalysts (HNTs@Fe(3)O(4)@Au and HNTs@Fe(3)O(4)@Pd), the bimetallic alloyed HNTs@Fe(3)O(4)@AuPd nanocatalysts exhibited excellent catalytic activities toward the reduction of 4-nitrophenol (4-NP) to 4-aminophenol. Furthermore, the as-obtained HNTs@Fe(3)O(4)@AuPd can be recycled several times, while retaining its functionality due to the stability and magnetic separation property. |
format | Online Article Text |
id | pubmed-5666498 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-56664982017-11-09 AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds Jia, Lei Zhou, Tao Xu, Jun Li, Fenghai Xu, Zhouqing Zhang, Beibei Guo, Shengli Shen, Xiaoke Zhang, Wensheng Nanomaterials (Basel) Article In this research, a facile and effective approach was developed for the preparation of well-designed AuPd alloyed catalysts supported on magnetic halloysite nanotubes (HNTs@Fe(3)O(4)@AuPd). The microstructure and the magnetic properties of HNTs@Fe(3)O(4)@AuPd were confirmed by transmission electron microscopy (TEM), high resolution TEM (HRTEM), energy-dispersive X-ray spectroscopy (EDS), and vibrating sample magnetometry (VSM) analyses. The catalysts, fabricated by a cheap, environmentally friendly, and simple surfactant-free formation process, exhibited high activities during the reduction of 4-nitrophenol and various other nitroaromatic compounds. Moreover, the catalytic activities of the HNTs@Fe(3)O(4)@AuPd nanocatalysts were tunable via adjusting the atomic ratio of AuPd during the synthesis. As compared with the monometallic nanocatalysts (HNTs@Fe(3)O(4)@Au and HNTs@Fe(3)O(4)@Pd), the bimetallic alloyed HNTs@Fe(3)O(4)@AuPd nanocatalysts exhibited excellent catalytic activities toward the reduction of 4-nitrophenol (4-NP) to 4-aminophenol. Furthermore, the as-obtained HNTs@Fe(3)O(4)@AuPd can be recycled several times, while retaining its functionality due to the stability and magnetic separation property. MDPI 2017-10-17 /pmc/articles/PMC5666498/ /pubmed/29039761 http://dx.doi.org/10.3390/nano7100333 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 Jia, Lei Zhou, Tao Xu, Jun Li, Fenghai Xu, Zhouqing Zhang, Beibei Guo, Shengli Shen, Xiaoke Zhang, Wensheng AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds |
title | AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds |
title_full | AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds |
title_fullStr | AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds |
title_full_unstemmed | AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds |
title_short | AuPd Bimetallic Nanocrystals Embedded in Magnetic Halloysite Nanotubes: Facile Synthesis and Catalytic Reduction of Nitroaromatic Compounds |
title_sort | aupd bimetallic nanocrystals embedded in magnetic halloysite nanotubes: facile synthesis and catalytic reduction of nitroaromatic compounds |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666498/ https://www.ncbi.nlm.nih.gov/pubmed/29039761 http://dx.doi.org/10.3390/nano7100333 |
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