Aditya Rianjanu, Mubarakatin Aulya, Muhammad A. A. P. Rayhan, Rizky Aflaha, Sena Maulana, Tarmizi Taher, Wahyu S. Sipahutar, Muhammad Iqbal Maulana, Nursidik Yulianto, Kuwat Triyana, Hutomo Suryo Wasisto
Quartz crystal microbalance-based humidity sensors with sensing layer of bamboo cellulose (BC)-overlaid polyacrylonitrile (PAN) nanofibers were fabricated using electrospinning and drop-casting processes. Scanning electron microscopy, water contact angle measurement, and Fourier-transform infrared spectroscopy were employed to investigate the morphology, wettability, and chemical composition of the nanofibers, respectively. Impact of varying BC concentration on the sensing response toward relative humidity (RH) was evaluated, where higher BC concentration resulted in more responsive sensor behavior (higher-frequency shift) toward RH. This work highlights a simple method to enhance the humidity-sensing ability of electrospun nanofibers by overlaying them with hydrophilic materials. Graphical abstract: [Figure not available: see fulltext.]. © 2023, The Author(s), under exclusive licence to The Materials Research Society.
Department of Materials Engineering, Institut Teknologi Sumatera, Terusan Ryacudu, Way Hui, Jati Agung, Lampung Selatan, 35365, Indonesia; Department of Physics, Universitas Gadjah Mada, Sekip Utara, BLS 21, Yogyakarta, 55281, Indonesia; Department of Forestry Engineering, Institut Teknologi Sumatera, Terusan Ryacudu, Way Hui, Jati Agung, Lampung Selatan, 35365, Indonesia; Department of Environmental Engineering, Institut Teknologi Sumatera, Terusan Ryacudu, Way Hui, Jati Agung, Lampung Selatan, 35365, Indonesia; Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong, 16911, Indonesia; Research Center for Photonics, National Research and Innovation Agency (BRIN), Kawasan Puspitek Serpong, Tangerang Selatan, 15314, Indonesia; PT Nanosense Instrument Indonesia, Umbulharjo, Yogyakarta, 55167, Indonesia
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