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...
| Hoofdauteurs: | , , , , |
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| Formaat: | Artikel |
| Taal: | English |
| Gepubliceerd in: |
Springer
2023-11-01
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| Reeks: | Discover Nano |
| Onderwerpen: | |
| Online toegang: | https://doi.org/10.1186/s11671-023-03923-4 |
| _version_ | 1827708799650103296 |
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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. |
| first_indexed | 2024-03-10T17:10:51Z |
| format | Article |
| id | doaj.art-34d27c2f288247f9a22891c00e04b51f |
| institution | Directory Open Access Journal |
| issn | 2731-9229 |
| language | English |
| last_indexed | 2024-03-10T17:10:51Z |
| publishDate | 2023-11-01 |
| publisher | Springer |
| record_format | Article |
| series | Discover Nano |
| 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 |
| work_keys_str_mv | AT ruifengzhang enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde AT leiliu enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde AT weiyeyang enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde AT yaoliu enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde AT yingkailiu enhancedsensitivityofaubi2wo6flowerlikematerialstoformaldehyde |