Enhanced sensitivity of Au@Bi2WO6 flower-like materials to formaldehyde

Abstract Bi2WO6 flower-like materials (FMs) were prepared by a hydrothermal method, followed by an in-situ reduction method to prepare Au@Bi2WO6 FMs. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and X-ray photoel...

पूर्ण विवरण

ग्रंथसूची विवरण
मुख्य लेखकों: Ruifeng Zhang, Lei Liu, Weiye Yang, Yao Liu, Yingkai Liu
स्वरूप: लेख
भाषा:English
प्रकाशित: Springer 2023-11-01
श्रृंखला:Discover Nano
विषय:
ऑनलाइन पहुंच:https://doi.org/10.1186/s11671-023-03923-4
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author Ruifeng Zhang
Lei Liu
Weiye Yang
Yao Liu
Yingkai Liu
author_facet Ruifeng Zhang
Lei Liu
Weiye Yang
Yao Liu
Yingkai Liu
author_sort Ruifeng Zhang
collection DOAJ
description Abstract Bi2WO6 flower-like materials (FMs) were prepared by a hydrothermal method, followed by an in-situ reduction method to prepare Au@Bi2WO6 FMs. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy were employed to characterize the samples. It was discovered that the calculated OV content of Au@Bi2WO6 FMs is 25.16% whereas that of Bi2WO6 FMs is 20.81%, offering appropriate active sites for the absorption of gases and thus enhancing outstanding sensing property. Moreover, the detection of volatile and hazardous substances such as formaldehyde, methanol, acetone, benzene, toluene, and xylene was carried out to assess the efficacy of the Au@Bi2WO6 FMs sensors. The optimal operating temperatures for the Bi2WO6 FMs and Au@Bi2WO6 FMs sensors were 290 and 260 °C, respectively. Compared with Au@Bi2WO6 FMs sensor and Bi2WO6 FMs one, the best response of the front was 250 (900)–100 (800) ppm formaldehyde whereas that of the latter was 90 (230). Therefore, Au@ Bi2WO6 FMs have good response and selectivity, which are promising candidates for formaldehyde detection.
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spelling doaj.art-34d27c2f288247f9a22891c00e04b51f2023-11-20T10:40:13ZengSpringerDiscover Nano2731-92292023-11-0118111210.1186/s11671-023-03923-4Enhanced sensitivity of Au@Bi2WO6 flower-like materials to formaldehydeRuifeng Zhang0Lei Liu1Weiye Yang2Yao Liu3Yingkai Liu4Yunnan Key Laboratory of Optoelectronic Information TechnologyYunnan Key Laboratory of Optoelectronic Information TechnologyYunnan Key Laboratory of Optoelectronic Information TechnologyYunnan Key Laboratory of Optoelectronic Information TechnologyYunnan Key Laboratory of Optoelectronic Information TechnologyAbstract Bi2WO6 flower-like materials (FMs) were prepared by a hydrothermal method, followed by an in-situ reduction method to prepare Au@Bi2WO6 FMs. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy were employed to characterize the samples. It was discovered that the calculated OV content of Au@Bi2WO6 FMs is 25.16% whereas that of Bi2WO6 FMs is 20.81%, offering appropriate active sites for the absorption of gases and thus enhancing outstanding sensing property. Moreover, the detection of volatile and hazardous substances such as formaldehyde, methanol, acetone, benzene, toluene, and xylene was carried out to assess the efficacy of the Au@Bi2WO6 FMs sensors. The optimal operating temperatures for the Bi2WO6 FMs and Au@Bi2WO6 FMs sensors were 290 and 260 °C, respectively. Compared with Au@Bi2WO6 FMs sensor and Bi2WO6 FMs one, the best response of the front was 250 (900)–100 (800) ppm formaldehyde whereas that of the latter was 90 (230). Therefore, Au@ Bi2WO6 FMs have good response and selectivity, which are promising candidates for formaldehyde detection.https://doi.org/10.1186/s11671-023-03923-4Au@Bi2WO6 flower-like structureFormaldehyde detectionGas sensorSensitivity
spellingShingle Ruifeng Zhang
Lei Liu
Weiye Yang
Yao Liu
Yingkai Liu
Enhanced sensitivity of Au@Bi2WO6 flower-like materials to formaldehyde
Discover Nano
Au@Bi2WO6 flower-like structure
Formaldehyde detection
Gas sensor
Sensitivity
title Enhanced sensitivity of Au@Bi2WO6 flower-like materials to formaldehyde
title_full Enhanced sensitivity of Au@Bi2WO6 flower-like materials to formaldehyde
title_fullStr Enhanced sensitivity of Au@Bi2WO6 flower-like materials to formaldehyde
title_full_unstemmed Enhanced sensitivity of Au@Bi2WO6 flower-like materials to formaldehyde
title_short Enhanced sensitivity of Au@Bi2WO6 flower-like materials to formaldehyde
title_sort enhanced sensitivity of au bi2wo6 flower like materials to formaldehyde
topic Au@Bi2WO6 flower-like structure
Formaldehyde detection
Gas sensor
Sensitivity
url https://doi.org/10.1186/s11671-023-03923-4
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AT leiliu enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde
AT weiyeyang enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde
AT yaoliu enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde
AT yingkailiu enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde