Skip to main navigation Skip to search Skip to main content

Bifunctional Activated Carbon Ultrathin Fibers: Combining the Removal of VOCs and PM in One Material

  • Haiyang Wang
  • , Di Zu
  • , Xinyu Jiang
  • , Yong Xu
  • , Zhiwen Cui
  • , Peng Du
  • , Zekun Cheng
  • , Ziwei Li
  • , Lei Li
  • , Chong Yang
  • , Xiaopeng Bai
  • , Baopu Zhang
  • , Yiqian Zhou
  • , Kuangyu Wang
  • , Bohan Li
  • , Zhenghong Huang
  • , Lihao Zhao*
  • , Bo Li*
  • , Hui Wu*
  • *Corresponding author for this work
  • Tsinghua University
  • Ltd.

Research output: Contribution to journalArticlepeer-review

Abstract

Volatile organic compounds (VOCs) and particulate matter (PM) are both frequently present in air as contaminants, posing serious health and environmental hazards. The current filtration of VOCs utilizes entirely different materials compared with PM filtration, adding complexity to air cleaning system. Herein, we design a pitch-based activated carbon ultrathin fibers (PACUFs) for bifunctional air purification. The PACUFs, with fiber diameter of ∼1.2 µm and specific surface area of 2341 m2 g−1, provide both high VOCs adsorption capacity (∼706 mg g−1) and excellent efficiency of ∼97% PM0.3 filtration with low pressure drop. In contrast, traditional activated carbon fibers exhibit VOCs adsorption capacity of ∼448 mg g−1 and PM0.3 removal efficiency of only ∼36% at an equal area density of ∼190 g m−2. Theoretical investigations reveal the filtration mechanism of the high-performance bifunctional fibrous PACUFs, considering full advantages of the high surface area, small pore size, and significant micropore volume.

Original languageEnglish
Pages (from-to)1934-1948
Number of pages15
JournalAdvanced Fiber Materials
Volume5
Issue number6
DOIs
Publication statusPublished - Dec 2023
Externally publishedYes

Keywords

  • Activated carbon fiber
  • Air pollutants
  • Bifunctional purification
  • Melt-blown spinning

Fingerprint

Dive into the research topics of 'Bifunctional Activated Carbon Ultrathin Fibers: Combining the Removal of VOCs and PM in One Material'. Together they form a unique fingerprint.

Cite this