Preparation and Gas Sensing Properties of Hair-Based Carbon Sheets

Waste human hair was carbonized into carbon sheets by a simple carbonization method, which was studied as gas sensing materials for the first time. The effect of carbonization temperature on the structure and gas sensing properties of hair-based carbon sheet was studied by scanning electron microsco...

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Published inNanomaterials (Basel, Switzerland) Vol. 12; no. 19; p. 3512
Main Authors Wu, Zhaofeng, Xia, Yidan, Liu, Lixiang, Sun, Qihua, Sun, Jun, Zhong, Furu, Zhang, Min, Duan, Haiming
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.10.2022
MDPI
Subjects
Activated carbon
Biomass
biomass carbon material
Carbon
Carbon fibers
carbon sheets
Carbonization
Diffraction
Electrodes
Gas sensors
gas-sensitive properties
Gases
Graphene
Graphite
Hair
human hair
Human wastes
Hydrogen peroxide
Infrared radiation
Raman spectroscopy
Raw materials
Resource utilization
Scanning electron microscopy
Selectivity
Semiconductors
Sensor arrays
Sensors
Sheets
Spectrum analysis
Waste utilization
X-ray diffraction
X-rays
China
Japan
Germany
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Summary:Waste human hair was carbonized into carbon sheets by a simple carbonization method, which was studied as gas sensing materials for the first time. The effect of carbonization temperature on the structure and gas sensing properties of hair-based carbon sheet was studied by scanning electron microscope, X-ray diffraction, infrared spectrum, Raman spectrum, and gas-sensitive tester. The results showed that the carbonization temperature had a significant effect on the structure and gas sensing performance of carbon sheets, which were doped with K, N, P, and S elements during carbonization. However, the sensor of the carbon sheet does not show good selectivity among six target gases. Fortunately, the carbon sheets prepared at different temperatures have different responses to the target gases. The sensor array constructed by the carbon sheets prepared at different temperatures can realize the discriminative detection of a variety of target gases. For the optimized carbon sheet, the theoretical limit of detection of hydrogen peroxide is 0.83 ppm. This work provides a reference for the resource utilization of waste protein and the development of gas sensors.
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ISSN:2079-4991
2079-4991
DOI:10.3390/nano12193512