Assembly of MOFs derived Co-Mn bimetallic oxides on SiO2 nanofibrous membrane for indoor air purification

Huixian Zhou; Fei Gao; Yiqing Zeng; Feng Zhang; Feng Han; Zhaoxiang Zhong; Weihong Xing

doi:10.1016/j.seppur.2024.129223

Assembly of MOFs derived Co-Mn bimetallic oxides on SiO₂ nanofibrous membrane for indoor air purification

Huixian Zhou, Fei Gao, Yiqing Zeng, Feng Zhang, Feng Han, Zhaoxiang Zhong, Weihong Xing

College of Chemical Engineering

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

1 Scopus citations

Abstract

The development of highly efficient air purification materials contributes to acquiring quality indoor air that essential for improving physical health and life comfort. In this work, a Co₃O₄-CoMn₂O₄@SiO₂ (COCMOS) nanofibrous membranes (NFMs) were prepared by thermal treating Mn-modified ZIF-67@SiO₂ NFMs for efficient indoor air purification. The COCMOS NFMs exhibited 99.03 % and 99.999 % dust retention efficiencies for PM_0.3 and PM_2.5 with a low filtration resistance, respectively. Compared to the Co₃O₄@SiO₂ (COS) NFMs (23 %), the HCHO removal efficiency of COCMOS NFMs was significantly improved at room temperature, reaching over 95 % within 25 min. The characterization results indicated that the thermal treatment of Mn-modified ZIF-67 induced the formation of a Co₃O₄-CoMn₂O₄ heterostructure on the surface of COCMOS NFMs. The Mn-Co bimetallic sites in this heterogeneous structure increased the amounts of oxygen vacancies and high valent cations and enhanced the redox properties of COCMOS NFMs, which contributed to its superior performance. This work provided insights on the design and preparation of highly efficient materials for indoor air purification.

Original language	English
Article number	129223
Journal	Separation and Purification Technology
Volume	354
DOIs	https://doi.org/10.1016/j.seppur.2024.129223
State	Published - 19 Feb 2025

Keywords

Catalytic membrane
CoO-CoMnO heterostructure
HCHO removal
PM filtration

Access to Document

10.1016/j.seppur.2024.129223

Cite this

@article{08c68489dfc9423288f8329ebc0faff9,

title = "Assembly of MOFs derived Co-Mn bimetallic oxides on SiO2 nanofibrous membrane for indoor air purification",

abstract = "The development of highly efficient air purification materials contributes to acquiring quality indoor air that essential for improving physical health and life comfort. In this work, a Co3O4-CoMn2O4@SiO2 (COCMOS) nanofibrous membranes (NFMs) were prepared by thermal treating Mn-modified ZIF-67@SiO2 NFMs for efficient indoor air purification. The COCMOS NFMs exhibited 99.03 % and 99.999 % dust retention efficiencies for PM0.3 and PM2.5 with a low filtration resistance, respectively. Compared to the Co3O4@SiO2 (COS) NFMs (23 %), the HCHO removal efficiency of COCMOS NFMs was significantly improved at room temperature, reaching over 95 % within 25 min. The characterization results indicated that the thermal treatment of Mn-modified ZIF-67 induced the formation of a Co3O4-CoMn2O4 heterostructure on the surface of COCMOS NFMs. The Mn-Co bimetallic sites in this heterogeneous structure increased the amounts of oxygen vacancies and high valent cations and enhanced the redox properties of COCMOS NFMs, which contributed to its superior performance. This work provided insights on the design and preparation of highly efficient materials for indoor air purification.",

keywords = "Catalytic membrane, CoO-CoMnO heterostructure, HCHO removal, PM filtration",

author = "Huixian Zhou and Fei Gao and Yiqing Zeng and Feng Zhang and Feng Han and Zhaoxiang Zhong and Weihong Xing",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2025",

month = feb,

day = "19",

doi = "10.1016/j.seppur.2024.129223",

language = "英语",

volume = "354",

journal = "Separation and Purification Technology",

issn = "1383-5866",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Assembly of MOFs derived Co-Mn bimetallic oxides on SiO2 nanofibrous membrane for indoor air purification

AU - Zhou, Huixian

AU - Gao, Fei

AU - Zeng, Yiqing

AU - Zhang, Feng

AU - Han, Feng

AU - Zhong, Zhaoxiang

AU - Xing, Weihong

PY - 2025/2/19

Y1 - 2025/2/19

N2 - The development of highly efficient air purification materials contributes to acquiring quality indoor air that essential for improving physical health and life comfort. In this work, a Co3O4-CoMn2O4@SiO2 (COCMOS) nanofibrous membranes (NFMs) were prepared by thermal treating Mn-modified ZIF-67@SiO2 NFMs for efficient indoor air purification. The COCMOS NFMs exhibited 99.03 % and 99.999 % dust retention efficiencies for PM0.3 and PM2.5 with a low filtration resistance, respectively. Compared to the Co3O4@SiO2 (COS) NFMs (23 %), the HCHO removal efficiency of COCMOS NFMs was significantly improved at room temperature, reaching over 95 % within 25 min. The characterization results indicated that the thermal treatment of Mn-modified ZIF-67 induced the formation of a Co3O4-CoMn2O4 heterostructure on the surface of COCMOS NFMs. The Mn-Co bimetallic sites in this heterogeneous structure increased the amounts of oxygen vacancies and high valent cations and enhanced the redox properties of COCMOS NFMs, which contributed to its superior performance. This work provided insights on the design and preparation of highly efficient materials for indoor air purification.

AB - The development of highly efficient air purification materials contributes to acquiring quality indoor air that essential for improving physical health and life comfort. In this work, a Co3O4-CoMn2O4@SiO2 (COCMOS) nanofibrous membranes (NFMs) were prepared by thermal treating Mn-modified ZIF-67@SiO2 NFMs for efficient indoor air purification. The COCMOS NFMs exhibited 99.03 % and 99.999 % dust retention efficiencies for PM0.3 and PM2.5 with a low filtration resistance, respectively. Compared to the Co3O4@SiO2 (COS) NFMs (23 %), the HCHO removal efficiency of COCMOS NFMs was significantly improved at room temperature, reaching over 95 % within 25 min. The characterization results indicated that the thermal treatment of Mn-modified ZIF-67 induced the formation of a Co3O4-CoMn2O4 heterostructure on the surface of COCMOS NFMs. The Mn-Co bimetallic sites in this heterogeneous structure increased the amounts of oxygen vacancies and high valent cations and enhanced the redox properties of COCMOS NFMs, which contributed to its superior performance. This work provided insights on the design and preparation of highly efficient materials for indoor air purification.

KW - Catalytic membrane

KW - CoO-CoMnO heterostructure

KW - HCHO removal

KW - PM filtration

UR - http://www.scopus.com/inward/record.url?scp=85201314219&partnerID=8YFLogxK

U2 - 10.1016/j.seppur.2024.129223

DO - 10.1016/j.seppur.2024.129223

M3 - 文章

AN - SCOPUS:85201314219

SN - 1383-5866

VL - 354

JO - Separation and Purification Technology

JF - Separation and Purification Technology

M1 - 129223

ER -

Assembly of MOFs derived Co-Mn bimetallic oxides on SiO₂ nanofibrous membrane for indoor air purification

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this