Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating Oil
Accurate detection of dissolved aging features in transformer oil is the key to judging the aging degree of oil-paper insulation. In this work, in order to realize in situ detection of furfural dissolved in transformer oil, silver nanoparticles were self-assembled on the surface of gold film with P-...
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| Format: | Article |
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MDPI AG
2018-12-01
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| Series: | Nanomaterials |
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| Online Access: | http://www.mdpi.com/2079-4991/9/1/17 |
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| author | Haiyang Shi Weigen Chen Fu Wan Lingling Du Shuhua Zhang Weiran Zhou Jiayi Zhang Yingzhou Huang Chengzhi Zhu |
| author_facet | Haiyang Shi Weigen Chen Fu Wan Lingling Du Shuhua Zhang Weiran Zhou Jiayi Zhang Yingzhou Huang Chengzhi Zhu |
| author_sort | Haiyang Shi |
| collection | DOAJ |
| description | Accurate detection of dissolved aging features in transformer oil is the key to judging the aging degree of oil-paper insulation. In this work, in order to realize in situ detection of furfural dissolved in transformer oil, silver nanoparticles were self-assembled on the surface of gold film with P-aminophenylthiophenol (PATP) as a coupling agent. Rhodamine-6G (R6G) was used as the probe molecule to test the enhancement effect. By optimizing the molecular concentration, molecular deposition time, and silver sol deposition time of PATP, the nanoparticles were made more uniform and compact, and an enhanced substrate with rich hot spots was obtained. The optimum substrate was developed, and surface-enhanced Raman spectroscopy (SERS) detection of trace furfural dissolved in transformer oil was realized. The results showed that the substrate prepared under the conditions of 0.1 mol/L PATP, 5 hours deposition in PATP and 12 hours immersion in silver sol, had the best reinforcement effect (that is, uniform and compact particle arrangement and no particle clusters). By use of this substrate, the minimum detectable concentration of furfural in transformer oil was about 1.06 mg/L, which provides a new method for fast and nondestructive detection of transformer aging diagnosis. |
| first_indexed | 2024-04-12T11:00:30Z |
| format | Article |
| id | doaj.art-ac74d006524146cbbdb6abce146a8410 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-04-12T11:00:30Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-ac74d006524146cbbdb6abce146a84102022-12-22T03:35:58ZengMDPI AGNanomaterials2079-49912018-12-01911710.3390/nano9010017nano9010017Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating OilHaiyang Shi0Weigen Chen1Fu Wan2Lingling Du3Shuhua Zhang4Weiran Zhou5Jiayi Zhang6Yingzhou Huang7Chengzhi Zhu8State Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, ChinaChengdu Power Supply Company, Chengdu 610041, ChinaState Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment& System Security and New Technology, Chongqing University, Chongqing 400044, ChinaSoft Matter and Interdisciplinary Research Center, Chongqing University, Chongqing 400044, ChinaState Grid Zhejiang Electric Power Company, Zhejiang 310000, ChinaAccurate detection of dissolved aging features in transformer oil is the key to judging the aging degree of oil-paper insulation. In this work, in order to realize in situ detection of furfural dissolved in transformer oil, silver nanoparticles were self-assembled on the surface of gold film with P-aminophenylthiophenol (PATP) as a coupling agent. Rhodamine-6G (R6G) was used as the probe molecule to test the enhancement effect. By optimizing the molecular concentration, molecular deposition time, and silver sol deposition time of PATP, the nanoparticles were made more uniform and compact, and an enhanced substrate with rich hot spots was obtained. The optimum substrate was developed, and surface-enhanced Raman spectroscopy (SERS) detection of trace furfural dissolved in transformer oil was realized. The results showed that the substrate prepared under the conditions of 0.1 mol/L PATP, 5 hours deposition in PATP and 12 hours immersion in silver sol, had the best reinforcement effect (that is, uniform and compact particle arrangement and no particle clusters). By use of this substrate, the minimum detectable concentration of furfural in transformer oil was about 1.06 mg/L, which provides a new method for fast and nondestructive detection of transformer aging diagnosis.http://www.mdpi.com/2079-4991/9/1/17surface-enhanced Raman spectroscopytransformer agingconcentration detection |
| spellingShingle | Haiyang Shi Weigen Chen Fu Wan Lingling Du Shuhua Zhang Weiran Zhou Jiayi Zhang Yingzhou Huang Chengzhi Zhu Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating Oil Nanomaterials surface-enhanced Raman spectroscopy transformer aging concentration detection |
| title | Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating Oil |
| title_full | Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating Oil |
| title_fullStr | Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating Oil |
| title_full_unstemmed | Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating Oil |
| title_short | Application of Self-Assembled Raman Spectrum-Enhanced Substrate in Detection of Dissolved Furfural in Insulating Oil |
| title_sort | application of self assembled raman spectrum enhanced substrate in detection of dissolved furfural in insulating oil |
| topic | surface-enhanced Raman spectroscopy transformer aging concentration detection |
| url | http://www.mdpi.com/2079-4991/9/1/17 |
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