دورية أكاديمية
Flexible and Reusable Ag Coated TiO2 Nanotube Arrays for Highly Sensitive SERS Detection of Formaldehyde
| العنوان: | Flexible and Reusable Ag Coated TiO2 Nanotube Arrays for Highly Sensitive SERS Detection of Formaldehyde |
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| المؤلفون: | Tong Zhu, Hang Wang, Libin Zang, Sila Jin, Shuang Guo, Eungyeong Park, Zhu Mao, Young Mee Jung |
| المصدر: | Molecules, Vol 25, Iss 5, p 1199 (2020) |
| بيانات النشر: | MDPI AG, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Organic chemistry |
| مصطلحات موضوعية: | formaldehyde, sers, raman, semiconductor, tio2, Organic chemistry, QD241-441 |
| الوصف: | Quantitative analysis of formaldehyde (HCHO, FA), especially at low levels, in various environmental media is of great importance for assessing related environmental and human health risks. A highly efficient and convenient FA detection method based on surface-enhanced Raman spectroscopy (SERS) technology has been developed. This SERS-based method employs a reusable and soft silver-coated TiO2 nanotube array (TNA) material, such as an SERS substrate, which can be used as both a sensing platform and a degradation platform. The Ag-coated TNA exhibits superior detection sensitivity with high reproducibility and stability compared with other SERS substrates. The detection of FA is achieved using the well-known redox reaction of FA with 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole (AHMT) at room temperature. The limit of detection (LOD) for FA is 1.21 × 10−7 M. In addition, the stable catalytic performance of the array allows the degradation and cleaning of the AHMT-FA products adsorbed on the array surface under ultraviolet irradiation, making this material recyclable. This SERS platform displays a real-time monitoring platform that combines the detection and degradation of FA. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1420-3049 25051199 |
| Relation: | https://www.mdpi.com/1420-3049/25/5/1199; https://doaj.org/toc/1420-3049 |
| DOI: | 10.3390/molecules25051199 |
| URL الوصول: | https://doaj.org/article/7f56f93c0b2246aeac3f17afa3981046 |
| رقم الأكسشن: | edsdoj.7f56f93c0b2246aeac3f17afa3981046 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 14203049 25051199 |
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| DOI: | 10.3390/molecules25051199 |