Polyacrylonitrile nanofiber as polar solvent N, N-dimethyl formamide sensor based on quartz crystal microbalance technique
Penulis/Author
ADITYA RIANJANU (1); TRISNA JULIAN (2); SHIDIQ NUR HIDAYAT (3); Dr. Eko Agus Suyono, S.Si., M.App.Sc. (4); Dr.Eng. Ahmad Kusumaatmaja, S.Si., M.Sc. (5); Prof. Dr. Eng. Kuwat Triyana, M.Si. (6)
Tanggal/Date
2018
Kata Kunci/Keyword
Abstrak/Abstract
Here, we describe an N,N-dimethyl formamide (DMF) vapour sensor fabricated by
coating polyacrylonitrile (PAN) nanofiber structured on quartz crystal microbalance (QCM). The
PAN nanofiber sensors with an average diameter of 225 nm to 310 nm were fabricated via
electrospinning process with different mass deposition on QCM substrate. The nanostructured of
PAN nanofiber offers a high specific surface area that improved the sensing performance of
nanofiber sensors. Benefiting from that fine structure, and high polymer-solvent affinity between
PAN and DMF, the development of DMF sensors presented good response at ambient
temperature. Since there is no chemical reaction between PAN nanofiber and DMF vapour, weak
physical interaction such absorption and swelling were responsible for the sensing behavior. The
results are indicating that the response of PAN nanofiber sensors has more dependency on the
nanofiber structure (specific surface area) rather than its mass deposition. The sensor also showed
good stability after a few days sensing. These findings have significant implications for developing
DMF vapour sensor based on QCM coated polymer nanofibers.
