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Title : Improving ammonia sensing performance of quartz crystal microbalance (QCM) coated with nanofibers and polyaniline (PANi) overlay
Author :

RIZKY AFLAHA (1) HENNY AFIYANTI (2) ZHAFIRAH NUR AZIZAH (3) HANIF KHOIRUDIN (4) Aditya Rianjanu (5) Dr.Eng. Ahmad Kusumaatmaja, S.Si., M.Sc. (6) Prof. Drs. Roto, M.Eng, Ph.D. (7) Prof. Dr. Eng. Kuwat Triyana, M.Si. (8)

Date : 0 2023
Keyword : Polyvynil acetat,Polyaniline,Ammonia,Quartz crystal microbalanceNanofiber,Nanofiber Polyvynil acetat,Polyaniline,Ammonia,Quartz crystal microbalanceNanofiber,Nanofiber
Abstract : Ammonia gas sensors with high sensitivity, good selectivity, and superior stability continue to be developed to monitor ammonia levels in the air. In this study, we developed a sensor based on a quartz crystal microbalance coated with polyvinyl acetate (PVAc) nanofiber overlaid with a polyaniline (PANi) nanocomposite to increase the sensitivity and selectivity of the sensor. The morphology and chemical composition of the fabricated nanofibers were examined by scanning electron microscopy and Fourier transform infrared spectroscopy. PANi nanocomposites were shown to stick to nanofiber, and nanofiber became many active groups after PANi overlay. The QCM sensor coated with the PVAc nanofiber overlaid with 0.05% PANi (PVAc/PANi5) exhibited the highest sensitivity of 0.297 Hz/ppm. This value was increased 5.2 times compared to the sensor without the PANi overlay (0.055 Hz/ppm). The PVAc/PANi5 sensor exhibited good reproducibility, repeatability, and reversibility. Moreover, a rapid response (36 s) and recovery (26 s) time were observed. The sensor also showed good selectivity towards other analytes and was proven to have good long-term stability during two months of testing. This finding may potentially be an alternative method for increasing the ammonia-sensing performance of a sensor through overlaying.
Group of Knowledge : Fisika
Original Language : English
Level : Internasional
Status :
Published
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1 1-s2_0-S2590137022001935-main-compressed.pdf
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2 jurnal_2118381_a4a8a0fcbd9038b9954855cf5f9d0041.pdf
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3 jurnal_2118381_a4a8a0fcbd9038b9954855cf5f9d0041-koresponding.pdf
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4 L1 Karya Sudah Terbit_2023 Biosensors and Bioelectronics X_Prof_ Kuwat Signed.pdf
Document Type : Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian)
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