Hydrothermal synthesis of a highly photoluminescent molecule from citric acid and cysteamine for the efficient detection of Au3+ in aqueous solution
Source abstract
Abstract
Abstract In recent years, citric acid has attracted great attention for it is considered as a precursor to prepare fluorescent materials with high quantum yield. In this paper, citric acid and cysteamine were used to synthesize a highly luminescent molecule, 5-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyridine-7-carboxylic (TPCA) by one-pot hydrothermal reaction and simple purification process. The obtained TPCA exhibited bright and stable blue fluorescence that had a 420 nm emission peak. Interestingly, the strong fluorescence of TPCA was selectively quenched by Au3+ in aqueous solution with the low detection limit of 51 nM based on S/N = 3 in the linear range of 0–10 μM. Thus, TPCA could be utilized as a new fluorescent sensor for determination of Au3+ concentration. We have demonstrated that this efficient probe was successfully applied to detect Au3+ concentration in practical samples such as lake water.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon and Quantum Dots Applications · Nanocluster Synthesis and Applications · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
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