Fabrication of hollow activated carbon nanofibers (HACNFs) containing manganese oxide catalyst for toluene removal via two-step process of electrospinning and thermal treatment

Sangmo Kang, Jungho Hwang

Research output: Contribution to journalArticle

Abstract

The development of an effective adsorbent for volatile organic compounds has been pursued in recent years, and diverse porous materials have been identified as promising candidates. However, most of the porous adsorbents have a limitation: the removal efficiency decreases at high temperatures. In this study, electrospun double-layer polymethyl methacrylate/manganese acetate (core), polyacrylonitrile (shell)-based nanofibers (NFs) are carbonized and CO2-activated to produce Mn3O4 nanoparticles embedded in hollow activated carbon NFs (Mn3O4/HACNFs). Owing to their hollow structure, the Mn3O4/HACNFs exhibit a great ability to adsorb toluene, with a longer breakthrough time of toluene adsorption than conventional activated carbon NFs. At 280 °C, the Mn3O4/HACNFs achieve catalytic oxidation of toluene (conversion to CO2 = 99% ± 0.5). Furthermore, when tested under alternating-temperature conditions (260 and 280 °C) for 4 h, the Mn3O4/HACNFs exhibit no degradation of the catalytic activity.

Original languageEnglish
Article number122315
JournalChemical Engineering Journal
Volume379
DOIs
Publication statusPublished - 2020 Jan 1

Fingerprint

Carbon nanofibers
Manganese oxide
manganese oxide
Electrospinning
Toluene
toluene
Activated carbon
activated carbon
catalyst
Heat treatment
Fabrication
Catalysts
Nanoparticles
Adsorbents
Volatile Organic Compounds
Catalytic oxidation
Polyacrylonitriles
Polymethyl Methacrylate
Manganese
Nanofibers

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

@article{ff7962d8724c4b9e815f1b4296e7c43f,
title = "Fabrication of hollow activated carbon nanofibers (HACNFs) containing manganese oxide catalyst for toluene removal via two-step process of electrospinning and thermal treatment",
abstract = "The development of an effective adsorbent for volatile organic compounds has been pursued in recent years, and diverse porous materials have been identified as promising candidates. However, most of the porous adsorbents have a limitation: the removal efficiency decreases at high temperatures. In this study, electrospun double-layer polymethyl methacrylate/manganese acetate (core), polyacrylonitrile (shell)-based nanofibers (NFs) are carbonized and CO2-activated to produce Mn3O4 nanoparticles embedded in hollow activated carbon NFs (Mn3O4/HACNFs). Owing to their hollow structure, the Mn3O4/HACNFs exhibit a great ability to adsorb toluene, with a longer breakthrough time of toluene adsorption than conventional activated carbon NFs. At 280 °C, the Mn3O4/HACNFs achieve catalytic oxidation of toluene (conversion to CO2 = 99{\%} ± 0.5). Furthermore, when tested under alternating-temperature conditions (260 and 280 °C) for 4 h, the Mn3O4/HACNFs exhibit no degradation of the catalytic activity.",
author = "Sangmo Kang and Jungho Hwang",
year = "2020",
month = "1",
day = "1",
doi = "10.1016/j.cej.2019.122315",
language = "English",
volume = "379",
journal = "Chemical Engineering Journal",
issn = "1385-8947",
publisher = "Elsevier",

}

TY - JOUR

T1 - Fabrication of hollow activated carbon nanofibers (HACNFs) containing manganese oxide catalyst for toluene removal via two-step process of electrospinning and thermal treatment

AU - Kang, Sangmo

AU - Hwang, Jungho

PY - 2020/1/1

Y1 - 2020/1/1

N2 - The development of an effective adsorbent for volatile organic compounds has been pursued in recent years, and diverse porous materials have been identified as promising candidates. However, most of the porous adsorbents have a limitation: the removal efficiency decreases at high temperatures. In this study, electrospun double-layer polymethyl methacrylate/manganese acetate (core), polyacrylonitrile (shell)-based nanofibers (NFs) are carbonized and CO2-activated to produce Mn3O4 nanoparticles embedded in hollow activated carbon NFs (Mn3O4/HACNFs). Owing to their hollow structure, the Mn3O4/HACNFs exhibit a great ability to adsorb toluene, with a longer breakthrough time of toluene adsorption than conventional activated carbon NFs. At 280 °C, the Mn3O4/HACNFs achieve catalytic oxidation of toluene (conversion to CO2 = 99% ± 0.5). Furthermore, when tested under alternating-temperature conditions (260 and 280 °C) for 4 h, the Mn3O4/HACNFs exhibit no degradation of the catalytic activity.

AB - The development of an effective adsorbent for volatile organic compounds has been pursued in recent years, and diverse porous materials have been identified as promising candidates. However, most of the porous adsorbents have a limitation: the removal efficiency decreases at high temperatures. In this study, electrospun double-layer polymethyl methacrylate/manganese acetate (core), polyacrylonitrile (shell)-based nanofibers (NFs) are carbonized and CO2-activated to produce Mn3O4 nanoparticles embedded in hollow activated carbon NFs (Mn3O4/HACNFs). Owing to their hollow structure, the Mn3O4/HACNFs exhibit a great ability to adsorb toluene, with a longer breakthrough time of toluene adsorption than conventional activated carbon NFs. At 280 °C, the Mn3O4/HACNFs achieve catalytic oxidation of toluene (conversion to CO2 = 99% ± 0.5). Furthermore, when tested under alternating-temperature conditions (260 and 280 °C) for 4 h, the Mn3O4/HACNFs exhibit no degradation of the catalytic activity.

UR - http://www.scopus.com/inward/record.url?scp=85069895508&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85069895508&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2019.122315

DO - 10.1016/j.cej.2019.122315

M3 - Article

AN - SCOPUS:85069895508

VL - 379

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

M1 - 122315

ER -