Triazole-acetate functionalized gold nanoparticles for colorimetric Pb(ii) sensing

I. Lin Lee, Yi Ming Sung, Shu-Pao Wu*

*Corresponding author for this work

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

New triazole-acetate functionalized gold nanoparticles (TTA-AuNPs) for sensitive and selective colorimetric detection of Pb2+ were developed. Aggregation of TTA-AuNPs was induced immediately in the presence of Pb2+, yielding a color change from wine-red to purple. This Pb 2+-induced aggregation of TTA-AuNPs was monitored by the bare eye and UV-vis spectroscopy with a detection limit of 16.7 nM. TTA-AuNPs showed excellent selectivity toward Pb2+compared to other metal ions through the interaction between the carboxyl group and triazole structure of TTA and Pb2+. The best detection of Pb2+ was achieved in a pH range from 5 to 10. Furthermore, TTA-AuNPs were applied to detect Pb 2+ in lake water with low interference.

原文English
頁(從 - 到)25251-25256
頁數6
期刊RSC Advances
4
發行號48
DOIs
出版狀態Published - 1 一月 2014

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