{"title":"通过表面固定诱导发射（S-FIE）提高粘土纳米片上苯并咪唑衍生物的荧光强度","authors":"Hakan Mori, Ryosuke Nakazato, Hiroshi Tachibana, Tetsuya Shimada, Tamao Ishida, Miyajima Ryo, Eietsu Hasegawa, Shinsuke Takagi","doi":"10.1007/s43630-024-00576-9","DOIUrl":null,"url":null,"abstract":"<p>The photophysical behaviors of benzimidazolium derivative [4-(1,3-dimethylbenzimidazol-3-imu-2-yl)-<i>N</i>, <i>N</i>-diphenylaniline (2-(4-(diphenylamino)phenyl)-1,3-dimethyl-1H-benzo[d]imidazol-3-ium)] (BID) in water, organic solvents and on synthetic saponite were investigated. The fluorescence quantum yield (<i>Φ</i><sub>f</sub>) of BID was 0.91 on the saponite surface under the optimal condition, while that in water was 0.010. Such fluorescence enhancement on the inorganic surface is called “surface-fixation induced emission (S-FIE)”. This fluorescence enhancement ratio for BID is significantly high compared to that of conventional S-FIE active dyes. From the values of <i>Φ</i><sub>f</sub> and the excited lifetime, the non-radiative deactivation rate constant (<i>k</i><sub>nr</sub>) and radiative deactivation rate constant (<i>k</i><sub>f</sub>) of BID on the saponite surface and in water were determined. Results showed that the factors for fluorescence enhancement were both the increase of <i>k</i><sub>f</sub> and the decrease of <i>k</i><sub>nr</sub> on the saponite surface; especially, <i>k</i><sub>nr</sub> decreased by more than two orders due to the effect of nanosheets.</p><h3 data-test=\"abstract-sub-heading\">Graphic abstract</h3><p>The fluorescence quantum yield increased approximately 90 times by the addition of clay.</p>\n","PeriodicalId":98,"journal":{"name":"Photochemical & Photobiological Sciences","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fluorescence enhancement of benzimidazolium derivative on clay nanosheets by surface-fixation induced emission (S-FIE)\",\"authors\":\"Hakan Mori, Ryosuke Nakazato, Hiroshi Tachibana, Tetsuya Shimada, Tamao Ishida, Miyajima Ryo, Eietsu Hasegawa, Shinsuke Takagi\",\"doi\":\"10.1007/s43630-024-00576-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The photophysical behaviors of benzimidazolium derivative [4-(1,3-dimethylbenzimidazol-3-imu-2-yl)-<i>N</i>, <i>N</i>-diphenylaniline (2-(4-(diphenylamino)phenyl)-1,3-dimethyl-1H-benzo[d]imidazol-3-ium)] (BID) in water, organic solvents and on synthetic saponite were investigated. The fluorescence quantum yield (<i>Φ</i><sub>f</sub>) of BID was 0.91 on the saponite surface under the optimal condition, while that in water was 0.010. Such fluorescence enhancement on the inorganic surface is called “surface-fixation induced emission (S-FIE)”. This fluorescence enhancement ratio for BID is significantly high compared to that of conventional S-FIE active dyes. From the values of <i>Φ</i><sub>f</sub> and the excited lifetime, the non-radiative deactivation rate constant (<i>k</i><sub>nr</sub>) and radiative deactivation rate constant (<i>k</i><sub>f</sub>) of BID on the saponite surface and in water were determined. Results showed that the factors for fluorescence enhancement were both the increase of <i>k</i><sub>f</sub> and the decrease of <i>k</i><sub>nr</sub> on the saponite surface; especially, <i>k</i><sub>nr</sub> decreased by more than two orders due to the effect of nanosheets.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphic abstract</h3><p>The fluorescence quantum yield increased approximately 90 times by the addition of clay.</p>\\n\",\"PeriodicalId\":98,\"journal\":{\"name\":\"Photochemical & Photobiological Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-04-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Photochemical & Photobiological Sciences\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1007/s43630-024-00576-9\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Photochemical & Photobiological Sciences","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s43630-024-00576-9","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
Fluorescence enhancement of benzimidazolium derivative on clay nanosheets by surface-fixation induced emission (S-FIE)
The photophysical behaviors of benzimidazolium derivative [4-(1,3-dimethylbenzimidazol-3-imu-2-yl)-N, N-diphenylaniline (2-(4-(diphenylamino)phenyl)-1,3-dimethyl-1H-benzo[d]imidazol-3-ium)] (BID) in water, organic solvents and on synthetic saponite were investigated. The fluorescence quantum yield (Φf) of BID was 0.91 on the saponite surface under the optimal condition, while that in water was 0.010. Such fluorescence enhancement on the inorganic surface is called “surface-fixation induced emission (S-FIE)”. This fluorescence enhancement ratio for BID is significantly high compared to that of conventional S-FIE active dyes. From the values of Φf and the excited lifetime, the non-radiative deactivation rate constant (knr) and radiative deactivation rate constant (kf) of BID on the saponite surface and in water were determined. Results showed that the factors for fluorescence enhancement were both the increase of kf and the decrease of knr on the saponite surface; especially, knr decreased by more than two orders due to the effect of nanosheets.
Graphic abstract
The fluorescence quantum yield increased approximately 90 times by the addition of clay.
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