Millisecond self-heating and quenching synthesis of Fe/carbon nanocomposite for superior reductive remediation

Liming Sun; Xuan Wu; Yubing Jiao; Chao Jia; Tao Teng; Litao Lin; Fengbo Yu; Zhelin He; Jie Gao; Shuwen Yan; Guosheng Shi; Zhiyong Jason Ren; Jinguang Yang; Shicheng Zhang; Xiangdong Zhu

doi:10.1016/j.apcatb.2023.123361

Millisecond self-heating and quenching synthesis of Fe/carbon nanocomposite for superior reductive remediation

Liming Sun, Xuan Wu, Yubing Jiao, Chao Jia, Tao Teng, Litao Lin, Fengbo Yu, Zhelin He, Jie Gao, Shuwen Yan, Guosheng Shi, Zhiyong Jason Ren, Jinguang Yang, Shicheng Zhang, Xiangdong Zhu

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

Abstract

Fe⁰-based nanomaterials are extensively applied in environmental remediation, but their passivated oxide shell restricts deep application. However, efforts aimed at revitalizing Fe-oxide shells have shown limited success. Here, we report a “faster win fast” approach by preferential carbon layer deposition in milliseconds to block Fe-oxide shell growth via carbon-assisted flash Joule heating (C-FJH) reaction. C-FJH induced ultra-high temperature and electric shock promoted reductive Fe formation and subsequently melted to a phase-fusional heterostructure (Fe⁰/FeCl₂). Therefore, theoretical calculation confirmed that electron delocalization effect of derived heterostructure promoted electron transfer. Synchronously, rapid self-heating/quenching rate (∼10² K/ms) realized a thin aromatic-carbon layer deposition to sustain both high stability and activity of reductive Fe. The channels of thin aromatic-carbon layer favored inward diffusion of pollutants, which facilitated the subsequent reduction. Accordingly, derived heterostructure and carbon layer jointly contributed to the boosted removal of multiple pollutants (including metal oxyanions, perfluorinated compounds, and disinfection by-products).

Original language	American English
Article number	123361
Journal	Applied Catalysis B: Environmental
Volume	342
DOIs	https://doi.org/10.1016/j.apcatb.2023.123361
State	Published - Mar 2024
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Environmental Science
Process Chemistry and Technology

Keywords

Environmental remediation
Fe-based nanomaterials
Flash Joule heating
Oxide shell-free
Reduction

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10.1016/j.apcatb.2023.123361

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title = "Millisecond self-heating and quenching synthesis of Fe/carbon nanocomposite for superior reductive remediation",

abstract = "Fe0-based nanomaterials are extensively applied in environmental remediation, but their passivated oxide shell restricts deep application. However, efforts aimed at revitalizing Fe-oxide shells have shown limited success. Here, we report a “faster win fast” approach by preferential carbon layer deposition in milliseconds to block Fe-oxide shell growth via carbon-assisted flash Joule heating (C-FJH) reaction. C-FJH induced ultra-high temperature and electric shock promoted reductive Fe formation and subsequently melted to a phase-fusional heterostructure (Fe0/FeCl2). Therefore, theoretical calculation confirmed that electron delocalization effect of derived heterostructure promoted electron transfer. Synchronously, rapid self-heating/quenching rate (∼102 K/ms) realized a thin aromatic-carbon layer deposition to sustain both high stability and activity of reductive Fe. The channels of thin aromatic-carbon layer favored inward diffusion of pollutants, which facilitated the subsequent reduction. Accordingly, derived heterostructure and carbon layer jointly contributed to the boosted removal of multiple pollutants (including metal oxyanions, perfluorinated compounds, and disinfection by-products).",

keywords = "Environmental remediation, Fe-based nanomaterials, Flash Joule heating, Oxide shell-free, Reduction",

author = "Liming Sun and Xuan Wu and Yubing Jiao and Chao Jia and Tao Teng and Litao Lin and Fengbo Yu and Zhelin He and Jie Gao and Shuwen Yan and Guosheng Shi and Ren, {Zhiyong Jason} and Jinguang Yang and Shicheng Zhang and Xiangdong Zhu",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2024",

month = mar,

doi = "10.1016/j.apcatb.2023.123361",

language = "American English",

volume = "342",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier",

}

TY - JOUR

T1 - Millisecond self-heating and quenching synthesis of Fe/carbon nanocomposite for superior reductive remediation

AU - Sun, Liming

AU - Wu, Xuan

AU - Jiao, Yubing

AU - Jia, Chao

AU - Teng, Tao

AU - Lin, Litao

AU - Yu, Fengbo

AU - He, Zhelin

AU - Gao, Jie

AU - Yan, Shuwen

AU - Shi, Guosheng

AU - Ren, Zhiyong Jason

AU - Yang, Jinguang

AU - Zhang, Shicheng

AU - Zhu, Xiangdong

PY - 2024/3

Y1 - 2024/3

N2 - Fe0-based nanomaterials are extensively applied in environmental remediation, but their passivated oxide shell restricts deep application. However, efforts aimed at revitalizing Fe-oxide shells have shown limited success. Here, we report a “faster win fast” approach by preferential carbon layer deposition in milliseconds to block Fe-oxide shell growth via carbon-assisted flash Joule heating (C-FJH) reaction. C-FJH induced ultra-high temperature and electric shock promoted reductive Fe formation and subsequently melted to a phase-fusional heterostructure (Fe0/FeCl2). Therefore, theoretical calculation confirmed that electron delocalization effect of derived heterostructure promoted electron transfer. Synchronously, rapid self-heating/quenching rate (∼102 K/ms) realized a thin aromatic-carbon layer deposition to sustain both high stability and activity of reductive Fe. The channels of thin aromatic-carbon layer favored inward diffusion of pollutants, which facilitated the subsequent reduction. Accordingly, derived heterostructure and carbon layer jointly contributed to the boosted removal of multiple pollutants (including metal oxyanions, perfluorinated compounds, and disinfection by-products).

AB - Fe0-based nanomaterials are extensively applied in environmental remediation, but their passivated oxide shell restricts deep application. However, efforts aimed at revitalizing Fe-oxide shells have shown limited success. Here, we report a “faster win fast” approach by preferential carbon layer deposition in milliseconds to block Fe-oxide shell growth via carbon-assisted flash Joule heating (C-FJH) reaction. C-FJH induced ultra-high temperature and electric shock promoted reductive Fe formation and subsequently melted to a phase-fusional heterostructure (Fe0/FeCl2). Therefore, theoretical calculation confirmed that electron delocalization effect of derived heterostructure promoted electron transfer. Synchronously, rapid self-heating/quenching rate (∼102 K/ms) realized a thin aromatic-carbon layer deposition to sustain both high stability and activity of reductive Fe. The channels of thin aromatic-carbon layer favored inward diffusion of pollutants, which facilitated the subsequent reduction. Accordingly, derived heterostructure and carbon layer jointly contributed to the boosted removal of multiple pollutants (including metal oxyanions, perfluorinated compounds, and disinfection by-products).

KW - Environmental remediation

KW - Fe-based nanomaterials

KW - Flash Joule heating

KW - Oxide shell-free

KW - Reduction

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JF - Applied Catalysis B: Environmental

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Millisecond self-heating and quenching synthesis of Fe/carbon nanocomposite for superior reductive remediation

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Keywords

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