De Novo synthesis of platinum-nanoparticle-encapsulated UiO-66-NH2 for photocatalytic thin film fabrication with enhanced performance of phenol degradation

Season S. Chen; Chechia Hu; Chia Hung Liu; Ying Hui Chen; Tansir Ahamad; Saad M. Alshehri; Pin Hsuan Huang; Kevin C.W. Wu

doi:10.1016/j.jhazmat.2020.122431

De Novo synthesis of platinum-nanoparticle-encapsulated UiO-66-NH₂ for photocatalytic thin film fabrication with enhanced performance of phenol degradation

Season S. Chen, Chechia Hu, Chia Hung Liu, Ying Hui Chen, Tansir Ahamad, Saad M. Alshehri, Pin Hsuan Huang, Kevin C.W. Wu

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

The structural and chemical stability of UiO-66-NH₂ and its simulated solar irradiation responsive characteristic make it a suitable metal-organic framework (MOF) candidate as photocatalytic material. Platinum nanoparticles (Pt NPs) are typically immobilized in MOF to enhance the photocatalytic efficiency. However, introducing high metal content in MOF with high dispersion is still challenging using conventional methods. In this paper, we present de novo synthesis of Pt@UiO-66-NH₂, which can reach a highest metal content of 16 wt% with an average nanoparticle size of around 2 nm as confirmed by ICP-MS analysis and TEM images. The presence of benzoic acid plays multiple important roles in Pt@UiO-66-NH₂ formation, including binding formation with Zr clusters, facilitating Pt dispersion, and being a modulator in MOF construction. In addition, the Pt@UiO-66-NH₂ is fabricated on the α-Al₂O₃ substrate as a photocatalytic membrane reactor (PMR) for phenol degradation, which shows over 70 % removal efficiency under light irradiation and H₂O₂ addition. The recycle test shows that the PMR can maintain high catalytic efficiency. The facile de novo synthesis method proposed in this study enables effective immobilization of high metal content in MOF, and construction of membrane-based photocatalyst for scale-up application.

Original language	English
Article number	122431
Journal	Journal of Hazardous Materials
Volume	397
DOIs	https://doi.org/10.1016/j.jhazmat.2020.122431
Publication status	Published - Oct 5 2020

Keywords

Membranes
Metal–organic frameworks (MOFs)
Phenolic compounds
Photocatalyst
Pt nanoparticles

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.jhazmat.2020.122431

Cite this

@article{03a495b1c31547968bb2eab29a9537e8,

title = "De Novo synthesis of platinum-nanoparticle-encapsulated UiO-66-NH2 for photocatalytic thin film fabrication with enhanced performance of phenol degradation",

abstract = "The structural and chemical stability of UiO-66-NH2 and its simulated solar irradiation responsive characteristic make it a suitable metal-organic framework (MOF) candidate as photocatalytic material. Platinum nanoparticles (Pt NPs) are typically immobilized in MOF to enhance the photocatalytic efficiency. However, introducing high metal content in MOF with high dispersion is still challenging using conventional methods. In this paper, we present de novo synthesis of Pt@UiO-66-NH2, which can reach a highest metal content of 16 wt% with an average nanoparticle size of around 2 nm as confirmed by ICP-MS analysis and TEM images. The presence of benzoic acid plays multiple important roles in Pt@UiO-66-NH2 formation, including binding formation with Zr clusters, facilitating Pt dispersion, and being a modulator in MOF construction. In addition, the Pt@UiO-66-NH2 is fabricated on the α-Al2O3 substrate as a photocatalytic membrane reactor (PMR) for phenol degradation, which shows over 70 % removal efficiency under light irradiation and H2O2 addition. The recycle test shows that the PMR can maintain high catalytic efficiency. The facile de novo synthesis method proposed in this study enables effective immobilization of high metal content in MOF, and construction of membrane-based photocatalyst for scale-up application.",

keywords = "Membranes, Metal–organic frameworks (MOFs), Phenolic compounds, Photocatalyst, Pt nanoparticles",

author = "Chen, {Season S.} and Chechia Hu and Liu, {Chia Hung} and Chen, {Ying Hui} and Tansir Ahamad and Alshehri, {Saad M.} and Huang, {Pin Hsuan} and Wu, {Kevin C.W.}",

note = "Funding Information: This work was financially supported by the Ministry of Science and Technology (MOST), Taiwan 108-2638-E-002-003-MY2 (Shackleton Program award). The authors also thank to Researchers Supporting Project number (RSP-2019/6), King Saud University, Riyadh, Saudi Arabia. Funding Information: This work was financially supported by the Ministry of Science and Technology (MOST), Taiwan 108-2638-E-002-003-MY2 (Shackleton Program award). The authors also thank to Researchers Supporting Project number (RSP-2019/6), King Saud University, Riyadh, Saudi Arabia. Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = oct,

day = "5",

doi = "10.1016/j.jhazmat.2020.122431",

language = "English",

volume = "397",

journal = "Journal of Hazardous Materials",

issn = "0304-3894",

publisher = "Elsevier",

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TY - JOUR

T1 - De Novo synthesis of platinum-nanoparticle-encapsulated UiO-66-NH2 for photocatalytic thin film fabrication with enhanced performance of phenol degradation

AU - Chen, Season S.

AU - Hu, Chechia

AU - Liu, Chia Hung

AU - Chen, Ying Hui

AU - Ahamad, Tansir

AU - Alshehri, Saad M.

AU - Huang, Pin Hsuan

AU - Wu, Kevin C.W.

N1 - Funding Information: This work was financially supported by the Ministry of Science and Technology (MOST), Taiwan 108-2638-E-002-003-MY2 (Shackleton Program award). The authors also thank to Researchers Supporting Project number (RSP-2019/6), King Saud University, Riyadh, Saudi Arabia. Funding Information: This work was financially supported by the Ministry of Science and Technology (MOST), Taiwan 108-2638-E-002-003-MY2 (Shackleton Program award). The authors also thank to Researchers Supporting Project number (RSP-2019/6), King Saud University, Riyadh, Saudi Arabia. Publisher Copyright: © 2020 Elsevier B.V.

PY - 2020/10/5

Y1 - 2020/10/5

N2 - The structural and chemical stability of UiO-66-NH2 and its simulated solar irradiation responsive characteristic make it a suitable metal-organic framework (MOF) candidate as photocatalytic material. Platinum nanoparticles (Pt NPs) are typically immobilized in MOF to enhance the photocatalytic efficiency. However, introducing high metal content in MOF with high dispersion is still challenging using conventional methods. In this paper, we present de novo synthesis of Pt@UiO-66-NH2, which can reach a highest metal content of 16 wt% with an average nanoparticle size of around 2 nm as confirmed by ICP-MS analysis and TEM images. The presence of benzoic acid plays multiple important roles in Pt@UiO-66-NH2 formation, including binding formation with Zr clusters, facilitating Pt dispersion, and being a modulator in MOF construction. In addition, the Pt@UiO-66-NH2 is fabricated on the α-Al2O3 substrate as a photocatalytic membrane reactor (PMR) for phenol degradation, which shows over 70 % removal efficiency under light irradiation and H2O2 addition. The recycle test shows that the PMR can maintain high catalytic efficiency. The facile de novo synthesis method proposed in this study enables effective immobilization of high metal content in MOF, and construction of membrane-based photocatalyst for scale-up application.

AB - The structural and chemical stability of UiO-66-NH2 and its simulated solar irradiation responsive characteristic make it a suitable metal-organic framework (MOF) candidate as photocatalytic material. Platinum nanoparticles (Pt NPs) are typically immobilized in MOF to enhance the photocatalytic efficiency. However, introducing high metal content in MOF with high dispersion is still challenging using conventional methods. In this paper, we present de novo synthesis of Pt@UiO-66-NH2, which can reach a highest metal content of 16 wt% with an average nanoparticle size of around 2 nm as confirmed by ICP-MS analysis and TEM images. The presence of benzoic acid plays multiple important roles in Pt@UiO-66-NH2 formation, including binding formation with Zr clusters, facilitating Pt dispersion, and being a modulator in MOF construction. In addition, the Pt@UiO-66-NH2 is fabricated on the α-Al2O3 substrate as a photocatalytic membrane reactor (PMR) for phenol degradation, which shows over 70 % removal efficiency under light irradiation and H2O2 addition. The recycle test shows that the PMR can maintain high catalytic efficiency. The facile de novo synthesis method proposed in this study enables effective immobilization of high metal content in MOF, and construction of membrane-based photocatalyst for scale-up application.

KW - Membranes

KW - Metal–organic frameworks (MOFs)

KW - Phenolic compounds

KW - Photocatalyst

KW - Pt nanoparticles

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DO - 10.1016/j.jhazmat.2020.122431

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