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...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-07-01
|
Series: | Nanomaterials |
Subjects: | |
Online Access: | https://www.mdpi.com/2079-4991/9/7/1034 |
id |
doaj-fa10d3da8bff48c2bbb89d6929cad3f7 |
---|---|
record_format |
Article |
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 |
work_keys_str_mv |
AT xirao acomparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT michaeltatoulian acomparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT cedricguyon acomparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT stephanieognier acomparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT chenglinchu acomparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT aliabouhassan acomparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT xirao comparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT michaeltatoulian comparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT cedricguyon comparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT stephanieognier comparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT chenglinchu comparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface AT aliabouhassan comparisonstudyoffunctionalgroupsaminevsthiolforimmobilizingaunpsonzeolitesurface |
_version_ |
1725371150608891904 |