Rahman MM, Alam MM, Asiri AM, Islam MA. 3,4-Diaminotoluene sensor development based on hydrothermally prepared MnCo
xO
y nanoparticles.
Talanta 2017;
176:17-25. [PMID:
28917737 DOI:
10.1016/j.talanta.2017.07.093]
[Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 07/29/2017] [Accepted: 07/31/2017] [Indexed: 10/19/2022]
Abstract
A facile hydrothermal process was used to prepare MnCoxOy nanoparticles (NPs) in alkaline medium (pH~10.5) at room temperature. The NPs were characterized by Fourier-transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV/vis), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS), and powder X-ray diffraction (XRD). A thin layer of NPs film as a chemical sensor was fabricated on a glassy carbon electrode (GCE) with the help of a conducting binder. The sensor was implemented successfully for the detection 3,4-DAT with reliable I-V approach at low potential. The sensor-features include good sensitivity (0.37 mAµmolL-1cm-2), low detection limit (LOD=0.26±0.01 pmolL-1 at a signal to noise ratio of 3), low limit of quantification (LOQ=7.80±0.01 pmolL-1), good reliability, good reproducibility, ease of integration, and long-term stability were investigated. The sensor response towards 3,4-DAT is linear in logarithmic scale over a large concentration range (1.0 pmolL-1 to 1.0 µmolL-1). This work is introduced a route for future sensitive sensor development based on MnCoxOy NPs by reliable I-V method for the detection of hazardous and carcinogenic toxins in environmental and health care fields.
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