Journal of Materials Science

, Volume 52, Issue 14, pp 8455–8464 | Cite as

Cellulose nanofiber/cationic conjugated polymer hybrid aerogel sensor for nitroaromatic vapors detection

  • Jingjing Qin
  • Lang Chen
  • Chenghui Zhao
  • Qixiang Lin
  • Shaowei Chen


A novel porous aerogel of cellulose nanofiber (CNF)/cationic water-soluble poly[9,9-bis[3′-(N,N-dimethy)-N-ethylammonium)propyl)-2,7-fluorene-alt-1,4-phenylene]dibromide (CPFD) is prepared by freeze drying. CNF can effectively prevent aggregation of the conjugated polymer CPFD backbones. The CNF/CPFD hybrid aerogel is use for the detection of nitroaromatic (NAC) vapors. Due to the porous structure, the CNF/CPFD hybrid aerogel possesses a large number of accessible cavities, which could be sufficiently large to allow the diffusion of NAC vapors into the aerogel. As a result, the CNF/CPFD aerogel sensor shows high sensitivity toward NAC vapors. For 120-s exposure, the fluorescence quenching efficiency of the CNF/CPFD aerogel sensor toward 2,4-dinitrotoluene vapor is up to 85.9%, which is much larger than that of the spin-cast CPFD film. Furthermore, the sensing performance of the CNF/CPFD hybrid aerogel is not heavily dependent on the thickness, and the sensing process of the CNF/CPFD aerogel sensor is reversible.


Picric Acid Boronic Acid DNPH Cellulose Nanofiber Conjugate Polymer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Jingjing Qin
    • 1
    • 2
  • Lang Chen
    • 1
  • Chenghui Zhao
    • 2
  • Qixiang Lin
    • 3
  • Shaowei Chen
    • 4
  1. 1.School of Mechatronical EngineeringBeijing Institute of TechnologyBeijingChina
  2. 2.Fuzhou Command Academy of Armed Police ForceFuzhouChina
  3. 3.Armed Police Force Engineering UniversityXi’anChina
  4. 4.Fujian Division of the Chinese People’s Armed Police ForceFujianChina

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