A novel quartz crystal microbalance gas sensor based on porous film coatings. A high sensitivity porous poly(methylmethacrylate) water vapor sensor

Yoo, Ho Yeon; Bruckenstein, Stanley

doi:10.1016/j.aca.2013.04.052

Cited by 33 publications

(13 citation statements)

References 12 publications

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“…As a sensor, the resonance frequency is measured and related to the mass change induced by the analyte binding to the recognition layer immobilized on the crystal surface. For instance, Yoo et al [45] demonstrated a sensor for water vapor (gas phase) detection prepared by deposing poly(methyl methacrylate) (PMMA) on QCM. Growing attempts have been made to develop nanostructured coatings on QCM to improve the sensitivity and responsiveness of sensors [46].…”

Section: Quartz Crystal Microbalance (Qcm) Sensormentioning

confidence: 99%

Electrospun Nanofiber-Based Sensors

Wang

Ding

2014

Nanostructure Science and Technology

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Monitoring of usable, explosive, and hazardous materials (gases, heavy metal ions, and organic contaminants) is one of the most important concerns that has attracted growing attention in the past few decades. Numerous sensors have been developed to meet the demands and the pursuit of highly sensitive, selective, reversible, fast response and recovery, cost-effective, and portable sensors which have gained great interest. Electrospun nanofibrous membranes that possess large surface area, high porosity, good interconnected porous structure, and flexibility of surface functionalization are expected to be ideal candidates of substrates to improve the performance of the sensors. More interestingly, the novel two-dimensional nanofiber/net membranes fabricated by electrospinning/netting are demonstrated to have extremely large surface area and unique pore structure, which could further enhance the sensitivity, stability, and response speed of the sensors. In this chapter, we summarize recent progress in the development of electrospun nanofiber-based sensors, describe the design of different types of sensors, and discuss their sensing performances in detail. This chapter might bring further development and evolution of sensors based on electrospun nanofibers for the detection of various analytes.

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Section: Quartz Crystal Microbalance (Qcm) Sensormentioning

confidence: 99%

Electrospun Nanofiber-Based Sensors

Wang

Ding

2014

Nanostructure Science and Technology

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“…In addition, the electrospinning have been widely concerned in the field of air filtration, protective clothing, sensors, wound wrap, tissue engineering scaffold, membrane separation materials, and etc. [10][11][12]. The diameter of the electrospinning fibers is generally distributed in the range of several nanometers to several micrometers.…”

Section: Introductionmentioning

confidence: 99%

VOCs Air Pollutant Cleaning with Polyacrylonitrile/Fly Ash Nanocomposite Electrospun Nanofibrous Membranes

Wang

Kim

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Volatile organic compounds (VOCs) as an environmental pollution, which have many kinds of chemical structures, and many of them are very toxic. Therefore, controlling and reducing the presence of VOCs has become a hot topic among researchers for many years. In this study, the VOCs adsorption capacity of polyacrylonitrile/fly ash (PAN/FA) nanocomposite electrospun nanofibrous membranes were investigated. The results indicated that the PAN with different contents of FA powder (20%, 40%, 60%, 80%, and 100% compared with PAN by weight) could be spun well by electrospinning. The diameter of the fiber was very fine and its arrangement was irregular. The PAN nanofibrous membrane containing 60 wt% FA powder had the highest VOCs absorption capacity compared with other nanofibrous membranes due to its large specific surface area.

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“…One area of interest includes the development of both VOC detection and control sensor technology [5,6,7,8,9], using the large surface area and large pore volume, among other advantages, of activated carbon to adsorb the VOCs [10,11,12,13,14,15]. Activated carbon is the most common adsorption method currently used.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Functional Polyurethane/Rare Earth Nanocomposite Membranes by Electrospinning and Its VOCs Absorption Capacity from Air

Choi

2017

Nanomaterials

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Volatile organic compounds (VOCs) are a source of air pollution and are harmful to both human health and the environment. In this study, we fabricated polyurethane/rare earth (PU/RE) composite nanofibrous membranes via electrospinning with the aim of removing VOCs from air. The morphological structure of PU/RE nanofibrous mats was investigated using field emission scanning electron microscopy (FE-SEM), fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) experimental analyses. A certain amount of RE (up to 50 wt. % compared to PU pellets) nanoparticles (NPs) could be loaded on/into PU fibers. The tensile strength of PU/RE nanofibrous membranes decreased slightly with the increasing RE powder content. The PU nanofiber containing 50 wt. % RE powder had the smallest fiber diameter of 356 nm; it also showed the highest VOC absorption capacity compared with other composite membranes, having an absorption capacity about three times greater than pure PU nanofibers. In addition, all of the PU/RE nanofibrous membranes readily absorbed styrene the most, followed by xylene, toluene, benzene and chloroform. Therefore, the PU/RE nanofibrous membrane can play an important role in removing VOCs from the air, and its development prospects are impressive because they are emerging materials.

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A novel quartz crystal microbalance gas sensor based on porous film coatings. A high sensitivity porous poly(methylmethacrylate) water vapor sensor

Cited by 33 publications

References 12 publications

Electrospun Nanofiber-Based Sensors

Electrospun Nanofiber-Based Sensors

VOCs Air Pollutant Cleaning with Polyacrylonitrile/Fly Ash Nanocomposite Electrospun Nanofibrous Membranes

Fabrication of Functional Polyurethane/Rare Earth Nanocomposite Membranes by Electrospinning and Its VOCs Absorption Capacity from Air

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