Indoor formaldehyde removal over CMK-3

Hyung Bum An; Mi Jin Yu; Ji Man Kim; Mingshi Jin; Jong Ki Jeon; Sung Hoon Park; Seung Soo Kim; Young Kwon Park

doi:10.1186/1556-276X-7-7

Indoor formaldehyde removal over CMK-3

Hyung Bum An, Mi Jin Yu, Ji Man Kim, Mingshi Jin, Jong Ki Jeon, Sung Hoon Park, Seung Soo Kim, Young Kwon Park

School of Environmental Engineering

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

44 Scopus citations

Abstract

The removal of formaldehyde at low concentrations is important in indoor air pollution research. In this study, mesoporous carbon with a large specific surface area was used for the adsorption of low-concentration indoor formaldehyde. A mesoporous carbon material, CMK-3, was synthesized using the nano-replication method. SBA-15 was used as a mesoporous template. The surface of CMK-3 was activated using a 2N H₂SO₄ solution and NH₃ gas to prepare CMK-3-H₂SO₄ and CMK-3-NH₃, respectively. The activated samples were characterized by N₂ adsorption-desorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The formaldehyde adsorption performance of the mesoporous carbons was in the order of CMK-3-NH₃ > CMK-3-H₂SO₄ > CMK-3. The difference in the adsorption performance was explained by oxygen and nitrogen functional groups formed during the activation process and by the specific surface area and pore structure of mesoporous carbon.

Original language	English
Article number	7
Journal	Nanoscale Research Letters
Volume	7
DOIs	https://doi.org/10.1186/1556-276X-7-7
State	Published - 2012

Keywords

Activation
Adsorption
Ammonia
Low-concentration formaldehyde
Mesoporous carbon
Sulfuric acid

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10.1186/1556-276X-7-7

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title = "Indoor formaldehyde removal over CMK-3",

abstract = "The removal of formaldehyde at low concentrations is important in indoor air pollution research. In this study, mesoporous carbon with a large specific surface area was used for the adsorption of low-concentration indoor formaldehyde. A mesoporous carbon material, CMK-3, was synthesized using the nano-replication method. SBA-15 was used as a mesoporous template. The surface of CMK-3 was activated using a 2N H2SO4 solution and NH3 gas to prepare CMK-3-H2SO4 and CMK-3-NH3, respectively. The activated samples were characterized by N2 adsorption-desorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The formaldehyde adsorption performance of the mesoporous carbons was in the order of CMK-3-NH3 > CMK-3-H2SO4 > CMK-3. The difference in the adsorption performance was explained by oxygen and nitrogen functional groups formed during the activation process and by the specific surface area and pore structure of mesoporous carbon.",

keywords = "Activation, Adsorption, Ammonia, Low-concentration formaldehyde, Mesoporous carbon, Sulfuric acid",

author = "An, {Hyung Bum} and Yu, {Mi Jin} and Kim, {Ji Man} and Mingshi Jin and Jeon, {Jong Ki} and Park, {Sung Hoon} and Kim, {Seung Soo} and Park, {Young Kwon}",

year = "2012",

doi = "10.1186/1556-276X-7-7",

language = "English",

volume = "7",

journal = "Nanoscale Research Letters",

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T1 - Indoor formaldehyde removal over CMK-3

AU - An, Hyung Bum

AU - Yu, Mi Jin

AU - Kim, Ji Man

AU - Jin, Mingshi

AU - Jeon, Jong Ki

AU - Park, Sung Hoon

AU - Kim, Seung Soo

AU - Park, Young Kwon

PY - 2012

Y1 - 2012

N2 - The removal of formaldehyde at low concentrations is important in indoor air pollution research. In this study, mesoporous carbon with a large specific surface area was used for the adsorption of low-concentration indoor formaldehyde. A mesoporous carbon material, CMK-3, was synthesized using the nano-replication method. SBA-15 was used as a mesoporous template. The surface of CMK-3 was activated using a 2N H2SO4 solution and NH3 gas to prepare CMK-3-H2SO4 and CMK-3-NH3, respectively. The activated samples were characterized by N2 adsorption-desorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The formaldehyde adsorption performance of the mesoporous carbons was in the order of CMK-3-NH3 > CMK-3-H2SO4 > CMK-3. The difference in the adsorption performance was explained by oxygen and nitrogen functional groups formed during the activation process and by the specific surface area and pore structure of mesoporous carbon.

AB - The removal of formaldehyde at low concentrations is important in indoor air pollution research. In this study, mesoporous carbon with a large specific surface area was used for the adsorption of low-concentration indoor formaldehyde. A mesoporous carbon material, CMK-3, was synthesized using the nano-replication method. SBA-15 was used as a mesoporous template. The surface of CMK-3 was activated using a 2N H2SO4 solution and NH3 gas to prepare CMK-3-H2SO4 and CMK-3-NH3, respectively. The activated samples were characterized by N2 adsorption-desorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The formaldehyde adsorption performance of the mesoporous carbons was in the order of CMK-3-NH3 > CMK-3-H2SO4 > CMK-3. The difference in the adsorption performance was explained by oxygen and nitrogen functional groups formed during the activation process and by the specific surface area and pore structure of mesoporous carbon.

KW - Activation

KW - Adsorption

KW - Ammonia

KW - Low-concentration formaldehyde

KW - Mesoporous carbon

KW - Sulfuric acid

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U2 - 10.1186/1556-276X-7-7

DO - 10.1186/1556-276X-7-7

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SN - 1931-7573

VL - 7

JO - Nanoscale Research Letters

JF - Nanoscale Research Letters

M1 - 7

ER -

Indoor formaldehyde removal over CMK-3

Abstract

Keywords

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