Oxidative decomposition with PEG-MnO2 catalyst for removal of formaldehyde: Chemical aspects on HCHO oxidation mechanism

Seong Bin Do; Sung Eun Lee; Tae Oh Kim

doi:10.1016/j.apsusc.2022.153773

Oxidative decomposition with PEG-MnO₂ catalyst for removal of formaldehyde: Chemical aspects on HCHO oxidation mechanism

Seong Bin Do
, Sung Eun Lee
, Tae Oh Kim

School of Applied Bioscience

Kumoh National Institute of Technology

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

25 Scopus citations

Abstract

Formaldehyde (HCHO) is a representative indoor pollutant that can adversely affect human health, and research on HCHO removal at room temperature is actively needed. In this study, a carbon-based material, Polyethylene glycol #20000(PEG #20000), is used to prepare PEG-MnO₂ by doping on MnO₂. Glucose-doped MnO₂ (G-MnO₂) and birnessite-doped MnO₂ (δ-MnO₂) are utilized to compare removal efficiencies with PEG-MnO₂. The efficiency of PEG-MnO₂ is measured to be 96.8 % under the conditions of 60 % relative humidity and GHSV of 240 L⋅g_cat^-1⋅h⁻¹. In addition, PEG-MnO₂ catalysts demonstrated longer stability by maintaining a constant efficiency for 720 min. The superior performance of PEG-MnO₂ is due to the formation of oxygen vacancies after PEG-doping which promote the oxidation of HCHO. Therefore, PEG-MnO₂ is expected to attract attention as a catalyst for HCHO removal at room temperature because it is easy to synthesize and has superb catalytic performance.

Original language	English
Article number	153773
Journal	Applied Surface Science
Volume	598
DOIs	https://doi.org/10.1016/j.apsusc.2022.153773
State	Published - 1 Oct 2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Keywords

Catalyst
Formaldehyde removal
Manganese oxide
Oxygen vacancy
Polyethylene glycol

Access to Document

10.1016/j.apsusc.2022.153773

Cite this

@article{050e72570cc64338a7089fd2257c7308,

title = "Oxidative decomposition with PEG-MnO2 catalyst for removal of formaldehyde: Chemical aspects on HCHO oxidation mechanism",

abstract = "Formaldehyde (HCHO) is a representative indoor pollutant that can adversely affect human health, and research on HCHO removal at room temperature is actively needed. In this study, a carbon-based material, Polyethylene glycol \#20000(PEG \#20000), is used to prepare PEG-MnO2 by doping on MnO2. Glucose-doped MnO2 (G-MnO2) and birnessite-doped MnO2 (δ-MnO2) are utilized to compare removal efficiencies with PEG-MnO2. The efficiency of PEG-MnO2 is measured to be 96.8 \% under the conditions of 60 \% relative humidity and GHSV of 240 L⋅gcat-1⋅h−1. In addition, PEG-MnO2 catalysts demonstrated longer stability by maintaining a constant efficiency for 720 min. The superior performance of PEG-MnO2 is due to the formation of oxygen vacancies after PEG-doping which promote the oxidation of HCHO. Therefore, PEG-MnO2 is expected to attract attention as a catalyst for HCHO removal at room temperature because it is easy to synthesize and has superb catalytic performance.",

keywords = "Catalyst, Formaldehyde removal, Manganese oxide, Oxygen vacancy, Polyethylene glycol",

author = "Do, \{Seong Bin\} and Lee, \{Sung Eun\} and Kim, \{Tae Oh\}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = oct,

day = "1",

doi = "10.1016/j.apsusc.2022.153773",

language = "English",

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journal = "Applied Surface Science",

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T1 - Oxidative decomposition with PEG-MnO2 catalyst for removal of formaldehyde

T2 - Chemical aspects on HCHO oxidation mechanism

AU - Do, Seong Bin

AU - Lee, Sung Eun

AU - Kim, Tae Oh

PY - 2022/10/1

Y1 - 2022/10/1

N2 - Formaldehyde (HCHO) is a representative indoor pollutant that can adversely affect human health, and research on HCHO removal at room temperature is actively needed. In this study, a carbon-based material, Polyethylene glycol #20000(PEG #20000), is used to prepare PEG-MnO2 by doping on MnO2. Glucose-doped MnO2 (G-MnO2) and birnessite-doped MnO2 (δ-MnO2) are utilized to compare removal efficiencies with PEG-MnO2. The efficiency of PEG-MnO2 is measured to be 96.8 % under the conditions of 60 % relative humidity and GHSV of 240 L⋅gcat-1⋅h−1. In addition, PEG-MnO2 catalysts demonstrated longer stability by maintaining a constant efficiency for 720 min. The superior performance of PEG-MnO2 is due to the formation of oxygen vacancies after PEG-doping which promote the oxidation of HCHO. Therefore, PEG-MnO2 is expected to attract attention as a catalyst for HCHO removal at room temperature because it is easy to synthesize and has superb catalytic performance.

AB - Formaldehyde (HCHO) is a representative indoor pollutant that can adversely affect human health, and research on HCHO removal at room temperature is actively needed. In this study, a carbon-based material, Polyethylene glycol #20000(PEG #20000), is used to prepare PEG-MnO2 by doping on MnO2. Glucose-doped MnO2 (G-MnO2) and birnessite-doped MnO2 (δ-MnO2) are utilized to compare removal efficiencies with PEG-MnO2. The efficiency of PEG-MnO2 is measured to be 96.8 % under the conditions of 60 % relative humidity and GHSV of 240 L⋅gcat-1⋅h−1. In addition, PEG-MnO2 catalysts demonstrated longer stability by maintaining a constant efficiency for 720 min. The superior performance of PEG-MnO2 is due to the formation of oxygen vacancies after PEG-doping which promote the oxidation of HCHO. Therefore, PEG-MnO2 is expected to attract attention as a catalyst for HCHO removal at room temperature because it is easy to synthesize and has superb catalytic performance.

KW - Catalyst

KW - Formaldehyde removal

KW - Manganese oxide

KW - Oxygen vacancy

KW - Polyethylene glycol

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DO - 10.1016/j.apsusc.2022.153773

M3 - Article

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VL - 598

JO - Applied Surface Science

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