Synthesis of Ag2S quantum dots by a single-source precursor: an efficient electrode material for rapid detection of phenol
By Maji, Swarup Kumar; Sreejith, Sivaramapanicker; Mandal, Amal Kumar; Dutta, Amit Kumar & Zhao, Yanli
Published in Anal. Methods
The Royal Society of Chemistry
2014
Abstract
Phenol and its derivatives are highly important chemicals in a variety of industrial products. However, their presence in ppm concentrations is extremely toxic for the environment in general and aquatic life specifically. Herein, we report the synthesis of highly mono-dispersed Ag2S quantum dots (QDs) with an average diameter of 11 nm from a single-source precursor, aiming to employ them as electrode materials for the detection of phenol. The as-prepared Ag2S QDs are immobilized on a glassy carbon (GC) electrode, and the electrochemical sensing of phenol using the developed Ag2S QD/GC electrode is observed to be within a wide range (1 [small mu ]M to 16 mM). As compared with conventional sensing approaches, the present technique shows a much lower detection limit (0.015 [small mu ]M) and higher sensitivity (61.2 [small mu ]A mM-1 cm-2) towards phenol. In addition, the Ag2S QD/GC electrode-based sensor also exhibits good stability, repeatability, reproducibility and anti-interference ability. Thus, the sensor presents a great advantage for sensitive, rapid and cost-effective detection and quantification of phenol, indicating a promising potential for practical sensing applications.
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.