One-step synthesis of 2D C3N4-tin oxide gas sensors for enhanced acetone vapor detection

Hu, Jing; Zou, Cheng; Su, Yanjie; Li, Ming; Liu, Yang; Ge, Mingqiao

doi:10.1016/j.snb.2017.06.176

Cited by 88 publications

(39 citation statements)

References 59 publications

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“…The maximum response R = R a /R g (where R a and R g are electrical resistance in air and in gas, respectively) equaled 20.18 measured at 300 °C under 50 ppm of acetone [ 42 ]. Another group [ 43 ] have proposed acetone sensors based on 2D C 3 N 4 -SnO 2 . The sensor response was defined as V g /V a , where V g and V a are electrical voltages measured under exposure to gas and air, respectively.…”

Section: Major Achievements On Acetone Detectionmentioning

confidence: 99%

“…The sensor response was defined as V g /V a , where V g and V a are electrical voltages measured under exposure to gas and air, respectively. The highest responses were obtained at 380 °C, for 20 ppm acetone was around 11 and limit of detection was measured around 87 ppb [ 43 ]. Kalidoss et al [ 44 ] have presented the investigation results of GO-SnO 2 -TiO 2 ternary nanocomposite for acetone in diabetes mellitus patients’ breath.…”

Section: Major Achievements On Acetone Detectionmentioning

confidence: 99%

See 1 more Smart Citation

Sensors for Enhanced Detection of Acetone as a Potential Tool for Noninvasive Diabetes Monitoring

Rydosz

2018

Sensors

135

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Measurement of blood-borne volatile organic compounds (VOCs) occurring in human exhaled breath as a result of metabolic changes or pathological disorders is a promising tool for noninvasive medical diagnosis, such as exhaled acetone measurements in terms of diabetes monitoring. The conventional methods for exhaled breath analysis are based on spectrometry techniques, however, the development of gas sensors has made them more and more attractive from a medical point of view. This review focuses on the latest achievements in gas sensors for exhaled acetone detection. Several different methods and techniques are presented and discussed as well.

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Section: Major Achievements On Acetone Detectionmentioning

confidence: 99%

Section: Major Achievements On Acetone Detectionmentioning

confidence: 99%

Sensors for Enhanced Detection of Acetone as a Potential Tool for Noninvasive Diabetes Monitoring

Rydosz

2018

Sensors

135

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“…The responses of pure WO 3 , S-1, S-2, S-3, and S-4 to 1000 ppm acetone at 310°C were 3.7, 16.2, 58.2, 1.0, and 1.3, respectively. It has been reported that pure g-C 3 N 4 exhibited very little response to acetone; the response improved significantly for a particular content of g-C 3 N 4 in a series of g-C 3 N 4 -SnO 2 nanocomposites [18]. The response of α-Fe 2 O 3 /g-C 3 N 4 to ethanol was also reported [11]; an appropriate amount of g-C 3 N 4 in the composites was propitious to the dispersion of α-Fe 2 O 3 in the composites and the formation of better heterojunctions; the reasons for the enhancement of gas sensing response were attributed to the larger specific surface area, better permeability, and heterojunction.…”

Section: Resultsmentioning

confidence: 99%

Facile Preparation of g-C₃N₄-WO₃ Composite Gas Sensing Materials with Enhanced Gas Sensing Selectivity to Acetone

et al. 2019

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In this paper, g-C3N4-WO3 composite materials were prepared by hydrothermal processing. The composites were characterized by means of X-ray powder diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and N2 adsorption-desorption, respectively. The gas sensing properties of the composites were investigated. The results indicated that the addition of appropriate amount of g-C3N4 to WO3 could improve the response and selectivity to acetone. The sensor based on 2 wt% g-C3N4-WO3 composite showed the best gas sensing performances. When operating at optimum temperature of 310°C, the responses to 1000 ppm and 0.5 ppm acetone were 58.2 and 1.6, respectively, and the ratio of the S1000 ppm acetone to S1000 ppm ethanol reached 3.7.

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“…Generally, metal oxide/g-C 3 N 4 composites such as α-Fe 2 O 3 /g-C 3 N 4 , [211] SnO 2 , [212][213][214] ZnO, [215][216][217] WO 3 [218] and MgFe 2 O 4 [219,220] can be synthesized via hydrothermal or solid-state methods. [218] α-Fe 2 O 3 /g-C 3 N 4 nanocomposites were synthesized by Zhang et al via hydrothermal and pyrolysis methods (Figure 16i).…”

Section: Chemiresistive Gas Sensormentioning

confidence: 99%

Host–Guest Recognition on 2D Graphitic Carbon Nitride for Nanosensing

Wang

Zhang

et al. 2019

Adv Materials Inter

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In recent years, graphitic carbon nitride (g-C 3 N 4) has attracted much attention due to its unique properties and excellent performance in the field of sensors, which has inspired the authors to compile this review. Although there are many reviews on the synthesis and applications of g-C 3 N 4 materials, a targeted, systematic, comprehensive summary of applications in sensors and the sensing mechanisms of g-C 3 N 4-based nanomaterials have not been published. In this review, the preparation methods and synthetic conditions for preparing g-C 3 N 4 with different morphologies, such as conventional bulk g-C 3 N 4 , g-C 3 N 4 nanosheets, and g-C 3 N 4 quantum dots, are introduced in detail. By reviewing recent advances in g-C 3 N 4-based nanomaterials in ion sensors, biosensors, gas sensors and humidity sensors, this study provides more comprehensive and in-depth information for the further design of g-C 3 N 4based sensors with enhanced performance. A brief outlook of g-C 3 N 4-based sensors is presented as the conclusion of this review.

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One-step synthesis of 2D C3N4-tin oxide gas sensors for enhanced acetone vapor detection

Cited by 88 publications

References 59 publications

Sensors for Enhanced Detection of Acetone as a Potential Tool for Noninvasive Diabetes Monitoring

Sensors for Enhanced Detection of Acetone as a Potential Tool for Noninvasive Diabetes Monitoring

Facile Preparation of g-C₃N₄-WO₃ Composite Gas Sensing Materials with Enhanced Gas Sensing Selectivity to Acetone

Host–Guest Recognition on 2D Graphitic Carbon Nitride for Nanosensing

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One-step synthesis of 2D C3N4-tin oxide gas sensors for enhanced acetone vapor detection

Cited by 88 publications

References 59 publications

Sensors for Enhanced Detection of Acetone as a Potential Tool for Noninvasive Diabetes Monitoring

Sensors for Enhanced Detection of Acetone as a Potential Tool for Noninvasive Diabetes Monitoring

Facile Preparation of g-C3N4-WO3 Composite Gas Sensing Materials with Enhanced Gas Sensing Selectivity to Acetone

Host–Guest Recognition on 2D Graphitic Carbon Nitride for Nanosensing

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Facile Preparation of g-C₃N₄-WO₃ Composite Gas Sensing Materials with Enhanced Gas Sensing Selectivity to Acetone