A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite Surface

A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite Surface

Immobilization of gold nanoparticles (AuNPs) on the surface of zeolite has received a great interest due to Au@zeolite’s unique characteristics and high performance for catalysis. In this work we studied the grafting of two different functional molecules; one having an amine group (3-amino...

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Main Authors: Xi Rao, Michaël Tatoulian, Cédric Guyon, Stephanie Ognier, Chenglin Chu, Ali Abou Hassan
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Nanomaterials
Subjects:
AuNPs
zeolite
immobilization
functional group
Online Access:https://www.mdpi.com/2079-4991/9/7/1034
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spelling doaj-fa10d3da8bff48c2bbb89d6929cad3f72020-11-25T00:19:35ZengMDPI AGNanomaterials2079-49912019-07-0197103410.3390/nano9071034nano9071034A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite SurfaceXi Rao0Michaël Tatoulian1Cédric Guyon2Stephanie Ognier3Chenglin Chu4Ali Abou Hassan5Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, ChinaChimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, FranceChimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, FranceChimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, FranceJiangsu Key Laboratory for Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, ChinaCentre National de la Recherche Scientifique CNRS, Sorbonne Université, Physico-chimie des Electrolytes et Nanosystèmes InterfaciauX, Phenix, F-75005 Paris, FranceImmobilization of gold nanoparticles (AuNPs) on the surface of zeolite has received a great interest due to Au@zeolite’s unique characteristics and high performance for catalysis. In this work we studied the grafting of two different functional molecules; one having an amine group (3-aminopropyl)triethoxysilane (APTES) and the second having a thiol group (3-mercaptopropyl)trimethoxysilane (MPTES) on the surface of zeolite using the same wet chemistry method. The modified zeolite surfaces were characterized using zeta potential measurements; diffuse reflectance infrared fourier transform (DRIFT) and X-ray photoelectron spectroscopy (XPS). The results confirmed a successful deposition of both functional groups at the topmost surface of the zeolite. Furthermore; transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis) spectroscopy and XPS results clearly evidenced that APTES provided a better AuNPs immobilization than MPTES as a result of; (1) less active functions obtained after MPTES deposition, and (2) the better attaching ability of thiol to the gold surface.https://www.mdpi.com/2079-4991/9/7/1034AuNPszeoliteimmobilizationfunctional group
collection DOAJ
language English
format Article
sources DOAJ
author Xi Rao
Michaël Tatoulian
Cédric Guyon
Stephanie Ognier
Chenglin Chu
Ali Abou Hassan
spellingShingle Xi Rao
Michaël Tatoulian
Cédric Guyon
Stephanie Ognier
Chenglin Chu
Ali Abou Hassan
A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite Surface
Nanomaterials
AuNPs
zeolite
immobilization
functional group
author_facet Xi Rao
Michaël Tatoulian
Cédric Guyon
Stephanie Ognier
Chenglin Chu
Ali Abou Hassan
author_sort Xi Rao
title A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite Surface
title_short A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite Surface
title_full A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite Surface
title_fullStr A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite Surface
title_full_unstemmed A Comparison Study of Functional Groups (Amine vs. Thiol) for Immobilizing AuNPs on Zeolite Surface
title_sort comparison study of functional groups (amine vs. thiol) for immobilizing aunps on zeolite surface
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2019-07-01
description Immobilization of gold nanoparticles (AuNPs) on the surface of zeolite has received a great interest due to Au@zeolite’s unique characteristics and high performance for catalysis. In this work we studied the grafting of two different functional molecules; one having an amine group (3-aminopropyl)triethoxysilane (APTES) and the second having a thiol group (3-mercaptopropyl)trimethoxysilane (MPTES) on the surface of zeolite using the same wet chemistry method. The modified zeolite surfaces were characterized using zeta potential measurements; diffuse reflectance infrared fourier transform (DRIFT) and X-ray photoelectron spectroscopy (XPS). The results confirmed a successful deposition of both functional groups at the topmost surface of the zeolite. Furthermore; transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis) spectroscopy and XPS results clearly evidenced that APTES provided a better AuNPs immobilization than MPTES as a result of; (1) less active functions obtained after MPTES deposition, and (2) the better attaching ability of thiol to the gold surface.
topic AuNPs
zeolite
immobilization
functional group
url https://www.mdpi.com/2079-4991/9/7/1034
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