In:
New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 45, No. 39 ( 2021), p. 18400-18411
Abstract:
Aluminum, one of the most plentiful metal ions on Earth, demonstrates toxic effects after excessive accumulation in the environment and human bodies because it is a non-essential element for living organisms. Therefore, strict limits on Al 3+ intake by humans have been proposed by the EPA and WHO. In the current study, ultrasound sonication was used for the green synthesis of the naphthalene-based acetohydrazide derivative (3), and it was used as a fluorescent sensor in order to determine the levels of Al 3+ ions in real samples. Theoretical calculations were carried out and the photophysical and electrochemical properties of 3 were deeply investigated via DFT; steady-state fluorescence, UV-vis absorption, time-resolved fluorescence, and 3D-fluorescence spectroscopy; excitation–emission matrix (EEM) analysis; and CV and SWV measurements. The fluorescent sensor investigations demonstrated that 3 can sensitively and selectively detect Al 3+ ions via a “turn-on” fluorescence response, which is based on the inhibition of PET and ESIPT processes with a synergistic effect from CHEF. The optimal conditions with regards to the initial sensor concentration, pH, selectivity, and interaction time were determined for the detection of Al 3+ ions. The linear working range and detection limit for Al 3+ ions were calculated to be 1.00–20.00 μmol L −1 and 0.34 μmol L −1 , respectively. Method validation was examined via the analysis of a certified reference material (CRM-TMDW-500), and spike/recovery testing and spectrofluorimetric analysis of Al 3+ ions in drinking water, seawater, and urine samples were successfully carried out using 3. Importantly, 3-capped paper-based test strips were developed for the practical analysis and monitoring of Al 3+ ions in the field. According to the obtained results, the presented detection technique, which is based on a “turn-on” fluorescence response change of 3, can be applied to the highly sensitive, facile, reliable, and fast determination of Al 3+ ions in real samples.
Type of Medium:
Online Resource
ISSN:
1144-0546
,
1369-9261
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2021
detail.hit.zdb_id:
1472933-7
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