Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 258, Issue -, Pages 602-611Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.11.154
Keywords
Diethylenetriaminepentaacetic acid; Nanofluids; AuNPs; AgNPs; Chromium sensing
Funding
- GNFC
Ask authors/readers for more resources
In the present study, we have explored the rapid green microwave synthesis of Diethylenetriaminepentaacetic acid (DTPA) capped Gold and Silver nanofluids. The formation of Au-DTPA and Ag-DTPA NPs were confirmed by surface plasmon resonance (SPR) peak observed around 520 nm and 400 nm for Au-DTPA NPs and Ag-DTPA NPs, respectively. The nanofluids were characterized by TEM, Raman spectroscopy and zeta potential analysis. The size of the nanoparticles in the nanofluids was observed to be of the order of 19-30 nm and 7-13 nm for AuNPs and AgNPs respectively. Raman analysis and SPR peak shift indicates sensing of Cr6+ and Cr3+. The Ag-DTPA NPs exhibited a linear concentration dependent response in the range 0.100-0.270 mu M and 0.010-0.15 mu M for Cr3+ and Cr6+ concentrations respectively while Au-DTPA NPs exhibited a linear concentration dependent response in the range 0.070-0.400 mu M and 0.010-0.25 mu M Cr3+ and Cr6+ concentrations respectively Limit of detection for Cr3+ and Cr6+ were found to be 0.05 mu M and 0.005 mu M respectively for Au-DTPA NPs while the detection limits were 0.05 mu M for Cr3+ and 0.005 mu M for Cr6+ in the case of Ag-DTPA NPs. (c) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available