Synergy between platinum and oxygen vacancy in CeO2 boosting enzyme-mimicking activity

Jiao Xiao; Xinyi Yang; Xinshuo Zhao; Fengmin Qin; Xiubo Yang; Lin Cui; Zhan Zhou; Dong Lin; Zunfu Hu; Yong Qin; Jiankang Zhang

doi:10.1016/j.bej.2023.109165

Synergy between platinum and oxygen vacancy in CeO₂ boosting enzyme-mimicking activity

Jiao Xiao, Xinyi Yang, Xinshuo Zhao, Fengmin Qin, Xiubo Yang, Lin Cui, Zhan Zhou, Dong Lin, Zunfu Hu, Yong Qin, Jiankang Zhang

School of life sciences

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

4 Scopus citations

Abstract

Reducible metal-oxide based nanozymes have received much attention in recent years due to their excellent and tunable enzyme-mimicking properties. Herein, porous CeO₂ nanorods supported Pt-based nanozymes with specific content of oxygen vacancy (Ov) were synthesized by combining atomic layer deposition and te following hydrogen activation strategy, among which the Pt/CeO₂-650R nanozymes with average particle size of 1.6 nm exhibit the optimized peroxidase activity in the typical H₂O₂–TMB reaction systems, whose specific activity is 3–fold higher than that of Pt/CeO₂ counterparts. Besides, the reduced nanozymes also present excellent degradation and antibiosis properties. The activity enhancement is ascribed to the Pt–Ov synergy contributing to the stronger capability to generate active radical species. This work affords new insights for in-depth understanding metal–Ov synergy in nanozyme catalysis field.

Original language	English
Article number	109165
Journal	Biochemical Engineering Journal
Volume	202
DOIs	https://doi.org/10.1016/j.bej.2023.109165
State	Published - Feb 2024

Keywords

Atomic layer deposition
Degradation and antibiosis
Nanozymes
Peroxidase activity
Pt–Ov synergy

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10.1016/j.bej.2023.109165

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title = "Synergy between platinum and oxygen vacancy in CeO2 boosting enzyme-mimicking activity",

abstract = "Reducible metal-oxide based nanozymes have received much attention in recent years due to their excellent and tunable enzyme-mimicking properties. Herein, porous CeO2 nanorods supported Pt-based nanozymes with specific content of oxygen vacancy (Ov) were synthesized by combining atomic layer deposition and te following hydrogen activation strategy, among which the Pt/CeO2-650R nanozymes with average particle size of 1.6 nm exhibit the optimized peroxidase activity in the typical H2O2–TMB reaction systems, whose specific activity is 3–fold higher than that of Pt/CeO2 counterparts. Besides, the reduced nanozymes also present excellent degradation and antibiosis properties. The activity enhancement is ascribed to the Pt–Ov synergy contributing to the stronger capability to generate active radical species. This work affords new insights for in-depth understanding metal–Ov synergy in nanozyme catalysis field.",

keywords = "Atomic layer deposition, Degradation and antibiosis, Nanozymes, Peroxidase activity, Pt–Ov synergy",

author = "Jiao Xiao and Xinyi Yang and Xinshuo Zhao and Fengmin Qin and Xiubo Yang and Lin Cui and Zhan Zhou and Dong Lin and Zunfu Hu and Yong Qin and Jiankang Zhang",

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

year = "2024",

month = feb,

doi = "10.1016/j.bej.2023.109165",

language = "英语",

volume = "202",

journal = "Biochemical Engineering Journal",

issn = "1369-703X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Synergy between platinum and oxygen vacancy in CeO2 boosting enzyme-mimicking activity

AU - Xiao, Jiao

AU - Yang, Xinyi

AU - Zhao, Xinshuo

AU - Qin, Fengmin

AU - Yang, Xiubo

AU - Cui, Lin

AU - Zhou, Zhan

AU - Lin, Dong

AU - Hu, Zunfu

AU - Qin, Yong

AU - Zhang, Jiankang

PY - 2024/2

Y1 - 2024/2

N2 - Reducible metal-oxide based nanozymes have received much attention in recent years due to their excellent and tunable enzyme-mimicking properties. Herein, porous CeO2 nanorods supported Pt-based nanozymes with specific content of oxygen vacancy (Ov) were synthesized by combining atomic layer deposition and te following hydrogen activation strategy, among which the Pt/CeO2-650R nanozymes with average particle size of 1.6 nm exhibit the optimized peroxidase activity in the typical H2O2–TMB reaction systems, whose specific activity is 3–fold higher than that of Pt/CeO2 counterparts. Besides, the reduced nanozymes also present excellent degradation and antibiosis properties. The activity enhancement is ascribed to the Pt–Ov synergy contributing to the stronger capability to generate active radical species. This work affords new insights for in-depth understanding metal–Ov synergy in nanozyme catalysis field.

AB - Reducible metal-oxide based nanozymes have received much attention in recent years due to their excellent and tunable enzyme-mimicking properties. Herein, porous CeO2 nanorods supported Pt-based nanozymes with specific content of oxygen vacancy (Ov) were synthesized by combining atomic layer deposition and te following hydrogen activation strategy, among which the Pt/CeO2-650R nanozymes with average particle size of 1.6 nm exhibit the optimized peroxidase activity in the typical H2O2–TMB reaction systems, whose specific activity is 3–fold higher than that of Pt/CeO2 counterparts. Besides, the reduced nanozymes also present excellent degradation and antibiosis properties. The activity enhancement is ascribed to the Pt–Ov synergy contributing to the stronger capability to generate active radical species. This work affords new insights for in-depth understanding metal–Ov synergy in nanozyme catalysis field.

KW - Atomic layer deposition

KW - Degradation and antibiosis

KW - Nanozymes

KW - Peroxidase activity

KW - Pt–Ov synergy

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U2 - 10.1016/j.bej.2023.109165

DO - 10.1016/j.bej.2023.109165

M3 - 文章

AN - SCOPUS:85179490716

SN - 1369-703X

VL - 202

JO - Biochemical Engineering Journal

JF - Biochemical Engineering Journal

M1 - 109165

ER -

Synergy between platinum and oxygen vacancy in CeO₂ boosting enzyme-mimicking activity

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Keywords

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