{"title":"一种可同时检测 As5+/Fe3+ 的有效开关型罗丹明封装 UiO-67-NH2 荧光探针","authors":"","doi":"10.1016/j.jssc.2024.124950","DOIUrl":null,"url":null,"abstract":"<div><p>The development of metal ion detection probes with high sensitivity and selectivity is of utmost importance for the promotion of public health and environmental sustainability. In this work, a series of ratiometric fluorescent probes (RhB@UiO-67-NH<sub>2</sub>) were successfully prepared using a one-pot method for the detection of metal ions, particularly As<sup>5+</sup> and Fe<sup>3+</sup>. Notably, the ratiometric fluorescent probe RhB@UiO-67-NH<sub>2</sub> (1:4) demonstrates dual functionality as a Fe<sup>3+</sup> turn-off probe and an As<sup>5+</sup> turn-on probe. The limits of detection (LODs) for As<sup>5+</sup> and Fe<sup>3+</sup> using RhB@UiO-67-NH<sub>2</sub> (1:4) were determined to be 0.521 μM (39.03 ppb) and 0.107 μM (5.97 ppb), respectively, which were the lowest records of reported LMOFs so far. The fluorescence quenching of Fe<sup>3+</sup> can be attributed to various mechanisms such as fluorescence resonance energy transfer (FRET), photoinduced electron transfer (PET), and competitive absorption (CA). Additionally, the fluorescence enhancement of As<sup>5+</sup> is primarily due to absorbance-caused enhancement (ACE) and PET. Moreover, the composite material RhB@UiO-67-NH<sub>2</sub> (1:4) exhibited excellent anti-interference capability and reproducibility for detecting Fe<sup>3+</sup> and As<sup>5+</sup>. The removal efficiency of As<sup>5+</sup> by RhB@UiO-67-NH<sub>2</sub> (1:4) exceeded 50.9 % when the initial concentration of As<sup>5+</sup> was below 20 mg/L. This work presents a valuable reference for future investigations and utilization of As<sup>5+</sup> and Fe<sup>3+</sup> sensing.</p></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An effective turn-on/off rodamine-encapsulated UiO-67-NH2 fluorescent probe for simultaneous As5+/Fe3+ detection\",\"authors\":\"\",\"doi\":\"10.1016/j.jssc.2024.124950\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The development of metal ion detection probes with high sensitivity and selectivity is of utmost importance for the promotion of public health and environmental sustainability. In this work, a series of ratiometric fluorescent probes (RhB@UiO-67-NH<sub>2</sub>) were successfully prepared using a one-pot method for the detection of metal ions, particularly As<sup>5+</sup> and Fe<sup>3+</sup>. Notably, the ratiometric fluorescent probe RhB@UiO-67-NH<sub>2</sub> (1:4) demonstrates dual functionality as a Fe<sup>3+</sup> turn-off probe and an As<sup>5+</sup> turn-on probe. The limits of detection (LODs) for As<sup>5+</sup> and Fe<sup>3+</sup> using RhB@UiO-67-NH<sub>2</sub> (1:4) were determined to be 0.521 μM (39.03 ppb) and 0.107 μM (5.97 ppb), respectively, which were the lowest records of reported LMOFs so far. The fluorescence quenching of Fe<sup>3+</sup> can be attributed to various mechanisms such as fluorescence resonance energy transfer (FRET), photoinduced electron transfer (PET), and competitive absorption (CA). Additionally, the fluorescence enhancement of As<sup>5+</sup> is primarily due to absorbance-caused enhancement (ACE) and PET. Moreover, the composite material RhB@UiO-67-NH<sub>2</sub> (1:4) exhibited excellent anti-interference capability and reproducibility for detecting Fe<sup>3+</sup> and As<sup>5+</sup>. The removal efficiency of As<sup>5+</sup> by RhB@UiO-67-NH<sub>2</sub> (1:4) exceeded 50.9 % when the initial concentration of As<sup>5+</sup> was below 20 mg/L. This work presents a valuable reference for future investigations and utilization of As<sup>5+</sup> and Fe<sup>3+</sup> sensing.</p></div>\",\"PeriodicalId\":378,\"journal\":{\"name\":\"Journal of Solid State Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-08-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Solid State Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022459624004043\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022459624004043","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
An effective turn-on/off rodamine-encapsulated UiO-67-NH2 fluorescent probe for simultaneous As5+/Fe3+ detection
The development of metal ion detection probes with high sensitivity and selectivity is of utmost importance for the promotion of public health and environmental sustainability. In this work, a series of ratiometric fluorescent probes (RhB@UiO-67-NH2) were successfully prepared using a one-pot method for the detection of metal ions, particularly As5+ and Fe3+. Notably, the ratiometric fluorescent probe RhB@UiO-67-NH2 (1:4) demonstrates dual functionality as a Fe3+ turn-off probe and an As5+ turn-on probe. The limits of detection (LODs) for As5+ and Fe3+ using RhB@UiO-67-NH2 (1:4) were determined to be 0.521 μM (39.03 ppb) and 0.107 μM (5.97 ppb), respectively, which were the lowest records of reported LMOFs so far. The fluorescence quenching of Fe3+ can be attributed to various mechanisms such as fluorescence resonance energy transfer (FRET), photoinduced electron transfer (PET), and competitive absorption (CA). Additionally, the fluorescence enhancement of As5+ is primarily due to absorbance-caused enhancement (ACE) and PET. Moreover, the composite material RhB@UiO-67-NH2 (1:4) exhibited excellent anti-interference capability and reproducibility for detecting Fe3+ and As5+. The removal efficiency of As5+ by RhB@UiO-67-NH2 (1:4) exceeded 50.9 % when the initial concentration of As5+ was below 20 mg/L. This work presents a valuable reference for future investigations and utilization of As5+ and Fe3+ sensing.
期刊介绍:
Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.