Acid treatment enhances performance of beads activated carbon for formaldehyde removal

Kang Yu-Jin; Jo Hyung-Kun; Jang Min-Hyeok; Han Gyoung-Jae; Yoon Seong-Jin; Oh Kyeongseok; Park Joo-Il

doi:10.1007/s42823-022-00428-5

Acid treatment enhances performance of beads activated carbon for formaldehyde removal

Carbon Letters
Abbr : Carbon Lett.
2023, 33(2), pp.397-408
DOI : 10.1007/s42823-022-00428-5
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : September 16, 2022
Accepted : October 20, 2022
Published : March 1, 2023

Kang Yu-Jin ¹, Jo Hyung-Kun ¹, Jang Min-Hyeok ¹, Han Gyoung-Jae ¹, Yoon Seong-Jin ¹, Oh Kyeongseok ², Park Joo-Il ¹

¹Hanbat National University
²Inha Technical College

Accredited

ABSTRACT

This study evaluated how acid treatment affects the ability of customized beads of activated carbon (BAC) to remove formaldehyde from air. Two different acids (hydrofluoric acid and sulfuric acid) were used to modify the surface of BAC prepared from a polymer material. The acid-modified BACs were further subjected to heat treatment. Physical and chemical characteristics of modified and unmodified BACs were investigated using nitrogen adsorption, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray fluorescence, and X-ray photoelectron spectroscopy. Formaldehyde removal was evaluated under both dry and moist conditions. From the results, acid treatment clearly improved the adsorption performance, especially under the moist condition. Qualitative and quantitative surface analyses were conducted, mainly to examine the amount of O-bonds after acid treatment and the formation of S–O or Cl–O on BAC.

KEYWORDS

Activated carbon Surface modification Acid Formaldehyde removal Humid air

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Acid treatment enhances performance of beads activated carbon for formaldehyde removal

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

Total Citation Counts(KCI+WOS) (6) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (6) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.

Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 6.04

Acid treatment enhances performance of beads activated carbon for formaldehyde removal

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WoS Citation Counts (6) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

Total Citation Counts(KCI+WOS) (6) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (6) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

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