Ethanol sensing properties of Zn2TiO4 particles

Santhaveesuk, Theerapong; Gardchareon, Atcharawon; Wongratanaphisan, Duangmanee; Choopun, Supab

doi:10.1016/j.ceramint.2015.03.230

Cited by 20 publications

(10 citation statements)

References 20 publications

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“…Therefore, many characteristic peaks of TiO 2 were observed in the final composition of Sample 1. The XRD results of Zn 2 TiO 4 were in good agreement with the previous studies [5,49,50,51]. …”

Section: Resultssupporting

confidence: 91%

“…In a previous study, Zn 2 TiO 4 particles were prepared using the ball-milling technique, and deposited as a thick film to detect alcohol gases (ethanol) at 50 and 200 ppm over an operating temperature range of 300–500 °C [5]. The highest sensitivity of the sensor was observed at 500 °C.…”

Section: Resultsmentioning

confidence: 99%

“…The reaction of the gas on the surface of metal oxides has been reported in many studies [5,11,13,15,24]. However, the mechanism of the reaction of the gases on the surface of the films is still not well understood.…”

Section: Resultsmentioning

confidence: 99%

“…A Zn 2 TiO 4 ethanol gas sensor was investigated. The sensor was used at concentration ranges of 50 and 200 ppm at 300–500 °C [5]. TiO 2 thin film-based gas sensors were demonstrated for detection of methanol, ethanol and benzene at room temperature [6].…”

Section: Introductionmentioning

confidence: 99%

“…The sensor exhibited the highest sensitivity to O 3 at 250 °C. A gas sensor based on Zn 2 TiO 4 as a sensing material for ethanol was studied [5]. The sensor was tested at operating temperatures of 300–500 °C, and exhibited the highest sensitivity at 500 °C.…”

Section: Introductionmentioning

confidence: 99%

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Response of a Zn2TiO4 Gas Sensor to Propanol at Room Temperature

Gaidan

Brabazon

Ahad

2017

Sensors

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In this study, three different compositions of ZnO and TiO2 powders were cold compressed and then heated at 1250 °C for five hours. The samples were ground to powder form. The powders were mixed with 5 wt % of polyvinyl butyral (PVB) as binder and 1.5 wt % carbon black and ethylene-glyco-lmono-butyl-ether as a solvent to form screen-printed pastes. The prepared pastes were screen printed on the top of alumina substrates containing arrays of three copper electrodes. The three fabricated sensors were tested to detect propanol at room temperature at two different concentration ranges. The first concentration range was from 500 to 3000 ppm while the second concentration range was from 2500 to 5000 ppm, with testing taking place in steps of 500 ppm. The response of the sensors was found to increase monotonically in response to the increment in the propanol concentration. The surface morphology and chemical composition of the prepared samples were characterized by Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD). The sensors displayed good sensitivity to propanol vapors at room temperature. Operation under room-temperature conditions make these sensors novel, as other metal oxide sensors operate only at high temperature.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Response of a Zn2TiO4 Gas Sensor to Propanol at Room Temperature

Gaidan

Brabazon

Ahad

2017

Sensors

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Synthesis Temperature Dependent Morphological Evolution in Zinc Titanate Heteronanostructures and Their Application in Environmental Remediation

Sharma

Jeevanandam

2016

ChemistrySelect

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The synthesis of Zn-Ti glycolates at different temperatures (RT to 200 8C) with different morphologies which convert to zinc titanate heteronanostructures after calcination (500/700 8C) has been reported. The effect of synthesis temperature on morphology, optical properties and photocatalytic activity of the heteronanostructures has been investigated. X-ray diffraction studies indicate that after calcination, cubic ZnTiO 3 is formed from the Zn-Ti glycolates synthesized at lower temperatures ( 100 8C) while Zn 2 TiO 4 is formed at higher temperatures (> 100 8C). Electron microscopy studies show that the Zn-Ti glycolates synthesized at lower temperatures ( 100 8C) and the corresponding zinc titanates exhibit rod-like morphology. The Zn-Ti glycolate synthesized at 150 8C and the corresponding zinc titanate possess mixture of rod and spherical morphology. The Zn-Ti glycolates synthesized at 180 and 200 8C and the zinc titanates exhibit spherical morphology. The rods and spheres were found to be formed in turn by assembly of nanoparticles. Diffuse reflectance spectroscopic studies show that the band gap of zinc titanates (3.2 eV to 3.75 eV) depends on synthesis temperature of Zn-Ti glycolates and also the calcination temperature. The zinc titanate heteronanostructures were explored as catalysts for the photodegradation of rhodamine B and crystal violet in aqueous solutions in the presence of sunlight and the zinc titanate spheres exhibit the best catalytic activity.

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