Sensitive and selective aggregation based colorimetric sensing of Fe3+ via interaction with acetyl salicylic acid derived gold nanoparticles
| Autor: | Safia Sanam Memon, Shabuddin Memon, Manzoor Iqbal Khattak, Sirajuddin, Munazza Arain, Syed Tufail Hussain Sherazi, Ayman Nafady, Muhammad Ishaq Abro, Abdullah M. Al-Enizi, Muhammad R. Shah, Amber R. Solangi |
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| Rok vydání: | 2018 |
| Předmět: |
Detection limit
Infrared Atomic force microscopy Metals and Alloys Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ion chemistry.chemical_compound chemistry Colloidal gold Materials Chemistry Electrical and Electronic Engineering 0210 nano-technology Spectroscopy Instrumentation Salicylic acid Nuclear chemistry |
| Zdroj: | Sensors and Actuators B: Chemical. 259:1006-1012 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2017.12.162 |
| Popis: | Here we highlight a single pot green synthetic protocol for gold nanoparticles (AuNps) using acetyl salicylic acid (ASA) drug as reducing and capping agent. These nanoparticles were characterized using UV–Vis (UV–Vis) spectroscopy, Fourier Transform Infrared (FT-IR) Spectroscopy, X-ray diffractometry (XRD) and Atomic Force Microscopy (AFM). The estimated average size of AuNps was 33 nm. These ASA-AuNps were employed to develop a highly selective and sensitive colorimetric sensor for Fe3+ detection. This sensor responded linearly to Fe3+ in the range of 0.3–2.1 μmol L−1. The limit of detection (LOD) and limit of quantification (LOQ) of sensor was 0.051 and 0.17 μmol L−1 respectively. The response of the developed sensor to the interfering ions like Ni2+, Hg2+, Cd2+, Cr3+, Co2+, As3+, Pb2+, Fe2+ and Zn2+ was negligible. The sensor was used successfully to detect Fe3+ in real water samples collected from various locations of the Sindh River. |
| Databáze: | OpenAIRE |
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