{"title":"基于 P25/ZnO 微球的紫外线激活型高性能甲醛气体传感器","authors":"Huibin Shi, Xiaosong Yang, Yibing Liu, Xiaoru Huang, Xinyang Du, Shuo Li, Weiguo Xu","doi":"10.1557/s43578-024-01440-3","DOIUrl":null,"url":null,"abstract":"<p>Implementing sensitive and fast formaldehyde (HCHO) sensing at room temperature is still in extreme demand for practical indoor air quality monitoring. Herein, we synthesized P25/ZnO sensing materials for detecting low-concentration HCHO at room temperature. The sensing mechanism based on the P25/ZnO heterojunction was analyzed by the surface photovoltage (SPV), transient photovoltage (TPV), and X-ray photoelectron spectroscopy (XPS) results. Based on the P25/ZnO heterojunction, the obtained 1% P25/ZnO has the highest response among the synthesized sensing materials. The response of 1% P25/ZnO sensor materials to 0.9ppm and 19.1ppm HCHO reaches 44.85% and 255.42%, respectively, which is 21 and 20 times that of ZnO sensor materials (0.9ppm ~ 2.16%, 19.1ppm ~ 12.64%). Furthermore, the detection limit can be as low as 82 ppb under 360 nm light at room temperature. The selectivity, long-term stability, and repeatability of the obtained sensors at room temperature were also revealed.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\n","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"UV-activated high-performance formaldehyde gas sensor based on P25/ZnO microspheres\",\"authors\":\"Huibin Shi, Xiaosong Yang, Yibing Liu, Xiaoru Huang, Xinyang Du, Shuo Li, Weiguo Xu\",\"doi\":\"10.1557/s43578-024-01440-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Implementing sensitive and fast formaldehyde (HCHO) sensing at room temperature is still in extreme demand for practical indoor air quality monitoring. Herein, we synthesized P25/ZnO sensing materials for detecting low-concentration HCHO at room temperature. The sensing mechanism based on the P25/ZnO heterojunction was analyzed by the surface photovoltage (SPV), transient photovoltage (TPV), and X-ray photoelectron spectroscopy (XPS) results. Based on the P25/ZnO heterojunction, the obtained 1% P25/ZnO has the highest response among the synthesized sensing materials. The response of 1% P25/ZnO sensor materials to 0.9ppm and 19.1ppm HCHO reaches 44.85% and 255.42%, respectively, which is 21 and 20 times that of ZnO sensor materials (0.9ppm ~ 2.16%, 19.1ppm ~ 12.64%). Furthermore, the detection limit can be as low as 82 ppb under 360 nm light at room temperature. The selectivity, long-term stability, and repeatability of the obtained sensors at room temperature were also revealed.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical abstract</h3>\\n\",\"PeriodicalId\":16306,\"journal\":{\"name\":\"Journal of Materials Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-09-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Research\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1557/s43578-024-01440-3\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Research","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1557/s43578-024-01440-3","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
UV-activated high-performance formaldehyde gas sensor based on P25/ZnO microspheres
Implementing sensitive and fast formaldehyde (HCHO) sensing at room temperature is still in extreme demand for practical indoor air quality monitoring. Herein, we synthesized P25/ZnO sensing materials for detecting low-concentration HCHO at room temperature. The sensing mechanism based on the P25/ZnO heterojunction was analyzed by the surface photovoltage (SPV), transient photovoltage (TPV), and X-ray photoelectron spectroscopy (XPS) results. Based on the P25/ZnO heterojunction, the obtained 1% P25/ZnO has the highest response among the synthesized sensing materials. The response of 1% P25/ZnO sensor materials to 0.9ppm and 19.1ppm HCHO reaches 44.85% and 255.42%, respectively, which is 21 and 20 times that of ZnO sensor materials (0.9ppm ~ 2.16%, 19.1ppm ~ 12.64%). Furthermore, the detection limit can be as low as 82 ppb under 360 nm light at room temperature. The selectivity, long-term stability, and repeatability of the obtained sensors at room temperature were also revealed.
期刊介绍：
Journal of Materials Research (JMR) publishes the latest advances about the creation of new materials and materials with novel functionalities, fundamental understanding of processes that control the response of materials, and development of materials with significant performance improvements relative to state of the art materials. JMR welcomes papers that highlight novel processing techniques, the application and development of new analytical tools, and interpretation of fundamental materials science to achieve enhanced materials properties and uses. Materials research papers in the following topical areas are welcome.
• Novel materials discovery
• Electronic, photonic and magnetic materials
• Energy Conversion and storage materials
• New thermal and structural materials
• Soft materials
• Biomaterials and related topics
• Nanoscale science and technology
• Advances in materials characterization methods and techniques
• Computational materials science, modeling and theory
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