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Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reduction

A facile and efficient strategy is presented for the encapsulation of Ag NPs within hierarchical porous silicalite-1. The physicochemical properties of the resultant catalyst are characterized by TEM, XRD, FTIR, and N(2) adsorption-desorption analytical techniques. It turns out that the Ag NPs are w...

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Detalles Bibliográficos
Autores principales: Wang, Bin, Wang, Haojiang, Zhang, Fengwei, Sun, Tijian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5992112/
https://www.ncbi.nlm.nih.gov/pubmed/29881924
http://dx.doi.org/10.1186/s11671-018-2579-1
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author Wang, Bin
Wang, Haojiang
Zhang, Fengwei
Sun, Tijian
author_facet Wang, Bin
Wang, Haojiang
Zhang, Fengwei
Sun, Tijian
author_sort Wang, Bin
collection PubMed
description A facile and efficient strategy is presented for the encapsulation of Ag NPs within hierarchical porous silicalite-1. The physicochemical properties of the resultant catalyst are characterized by TEM, XRD, FTIR, and N(2) adsorption-desorption analytical techniques. It turns out that the Ag NPs are well distributed in MFI zeolite framework, which possesses hierarchical porous characteristics (1.75, 3.96 nm), and the specific surface area is as high as 243 m(2) · g(−1). More importantly, such catalyst can rapidly transform the 4-nitrophenol to 4-aminophenol in aqueous solution at room temperature, and a quantitative conversion is also obtained after being reused 10 times. The reasons can be attributed to the fast mass transfer, large surface area, and spatial confinement effect of the advanced support.
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spelling pubmed-59921122018-06-21 Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reduction Wang, Bin Wang, Haojiang Zhang, Fengwei Sun, Tijian Nanoscale Res Lett Nano Express A facile and efficient strategy is presented for the encapsulation of Ag NPs within hierarchical porous silicalite-1. The physicochemical properties of the resultant catalyst are characterized by TEM, XRD, FTIR, and N(2) adsorption-desorption analytical techniques. It turns out that the Ag NPs are well distributed in MFI zeolite framework, which possesses hierarchical porous characteristics (1.75, 3.96 nm), and the specific surface area is as high as 243 m(2) · g(−1). More importantly, such catalyst can rapidly transform the 4-nitrophenol to 4-aminophenol in aqueous solution at room temperature, and a quantitative conversion is also obtained after being reused 10 times. The reasons can be attributed to the fast mass transfer, large surface area, and spatial confinement effect of the advanced support. Springer US 2018-06-07 /pmc/articles/PMC5992112/ /pubmed/29881924 http://dx.doi.org/10.1186/s11671-018-2579-1 Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Wang, Bin
Wang, Haojiang
Zhang, Fengwei
Sun, Tijian
Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reduction
title Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reduction
title_full Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reduction
title_fullStr Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reduction
title_full_unstemmed Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reduction
title_short Preparation of Hierarchical Porous Silicalite-1 Encapsulated Ag NPs and Its Catalytic Performance for 4-Nitrophenol Reduction
title_sort preparation of hierarchical porous silicalite-1 encapsulated ag nps and its catalytic performance for 4-nitrophenol reduction
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5992112/
https://www.ncbi.nlm.nih.gov/pubmed/29881924
http://dx.doi.org/10.1186/s11671-018-2579-1
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