Study on the detection behavior of defect-rich single-walled carbon nanotubes toward perchlorate

Yi Chen, Thuy Hang Nguyen, Shao Lin Zhang, Z. Zhang, Hongyan Yue, Jiawen Jian, Woo Chul Yang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Defect-rich single-walled carbon nanotubes (SWCNTs) were prepared by a water vapor flow-assisted chemical vapor deposition process. The correlation between defect density and water flow was quantitively studied using Raman spectrum. The detection capabilities of defective SWCNTs films toward perchlorate anions were investigated. It was found the defect-rich SWCNTs could adsorb more perchlorate anions owing to the strong chemical bonding between anions and defective sites. However, the detective response of defective SWCNTs toward perchlorate was not in compliance with anion adsorption. A tradeoff phenomenon between response and adsorption was found as the defect density of SWCNTs increased. This work is expected to provide a guidance to the future design of SWCNTs based ion detector.

Original languageEnglish
Article number1850032
JournalFunctional Materials Letters
Volume11
Issue number2
DOIs
StatePublished - 1 Apr 2018

Keywords

  • defect density
  • detection
  • perchlorate
  • Single-walled carbon nanotube

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