A fluorescent and colorimetric dual-recognition probe based on copper(ii )-decorated carbon dots for detection of phosphate
| العنوان: | A fluorescent and colorimetric dual-recognition probe based on copper( |
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| المؤلفون: | Keli Zhong, Jianrong Li, Lijun Tang, Xiuying Liu, Xue Gao, Minjun Sun |
| المصدر: | Analytical Methods. 13:5003-5010 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Detection limit, chemistry.chemical_classification, Materials science, General Chemical Engineering, General Engineering, Analytical chemistry, chemistry.chemical_element, Signal, Copper, Fluorescence, Carbon, Phosphates, Analytical Chemistry, Coordination complex, Spectrometry, Fluorescence, chemistry, Linear range, Colorimetry, Absorption (electromagnetic radiation), Fluorescent Dyes |
| الوصف: | In the present article, we report a novel fluorescent and colorimetric dual-signal sensing probe based on a CD–Cu2+ complex for the detection of the phosphate ion (Pi). The yellow fluorescent carbon quantum dots (CDs) were simply synthesized via one-step hydrothermal treatment of o-phenylenediamine (OPD) and 4-aminobutyric acid (GABA). The method was based on the combination of the CDs and Cu2+ to form a coordination complex. Pi can capture Cu2+ on the surface of CDs, which brings about two kinds of signal change through competitive complexation, including fluorescence and UV-vis absorption. The probe could detect the Pi with a linear range of 0.01–1 mM with a detection limit of 3.75 μM for the fluorescence signal and a linear range of 0.01–1 mM with a detection limit of 4.38 μM for the colorimetric signal. And the change in absorption signal can be used to visually detect Pi. Furthermore, the proposed sensing system was successfully applied to determine Pi in practical water samples. |
| تدمد: | 1759-9679 1759-9660 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::256f227d89ca6a7f10dab2178c24421eTest https://doi.org/10.1039/d1ay01394gTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....256f227d89ca6a7f10dab2178c24421e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17599679 17599660 |
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