Platinum Nanoflower-Modified Electrode as a Sensitive Sensor for Simultaneous Detection of Lead and Cadmium at Trace Levels

Nguyen, Thi Lieu; Cao, Van Hoang; Pham, Thi Hai Yen; Le, Giang Truong

doi:10.1155/2019/6235479

Cited by 14 publications

(5 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ethanol electrooxidation test was then carried out using a solution of 1.0 M ethanol and 0.1 M NaOH. 200), respectively, which were consistent with face-centered cubic [16][17][18]. Other peaks that were originally recorded come from the FTO substrate [19] because of the thinness of the Pt layer.…”

Section: Methodssupporting

confidence: 62%

See 1 more Smart Citation

Square-Wave Pulse Deposition of Pt Nanoparticles for Ethanol Electrooxidation

Syafei,

Syafei

2024

Chem. Mater.

View full text Add to dashboard Cite

Platinum (Pt) is often used as an electrocatalyst in the electrooxidation of ethanol. There have been many attempts to improve the catalytic properties of platinum-based catalysts to achieve satisfactory results. The solutions are manipulating the size and shape of Pt. In this study, Pt will be deposited using the square wave pulse deposition method at upper potential variations. The Pt samples were characterized by scanning electron microscopy (SEM), X-ray diffraction, energy dispersive X-ray, and electrochemical impedance spectroscopy. The results of SEM show that the morphology of Pt at potentials of 0.3 V, 0.5 V, and 1.0 V produces a dendritic nanothorn morphology, while 1.25 V and 1.50 V produce a nanoleaf morphology. The lowest charge transfer resistance value is at Pt1.0V with the smallest size. The highest yield of ethanol electrooxidation was at Pt1.0V reaching 8.82 mA/cm2.

show abstract

Section: Methodssupporting

confidence: 62%

“…1. The XRD pattern recorded platinum peaks at 39.89 o and 46.25 o , corresponding to the planes (111) and (200), respectively, which were consistent with face-centered cubic[16][17][18]. Other peaks that were originally recorded come from the FTO substrate[19] because of the thinness of the Pt layer.…”

mentioning

confidence: 83%

Square-Wave Pulse Deposition of Pt Nanoparticles for Ethanol Electrooxidation

Syafei,

Syafei

2024

Chem. Mater.

View full text Add to dashboard Cite

show abstract

“…As the electrode head is vulnerable to the interference of organic compounds, such as passivation and signal weakening, it is extremely important to pay attention to the reuse performance, precision, and antiinterference ability of the electrode while synthesizing high-sensitivity electrode modified films. Nguyen et al [57] prepared a platinum nanoflower modified electrode by onestep electrochemical deposition method for simultaneous determination of lead ions and cadmium ions in water. Lead and cadmium ions in the range of 1-100 µg/L can be tested normally.…”

Section: Electrodementioning

confidence: 99%

Detection Techniques for Lead Ions in Water: A Review

Hu²,

Cheng

et al. 2023

Molecules

View full text Add to dashboard Cite

Lead pollution has increasingly become the focus of environmental pollution, which is a great harm to the ecological environment and human health. Strict control of the emission of lead pollutants and accurate monitoring of lead are very important. The lead ion detection technologies are introduced here, including spectrophotometry, electrochemical method, atomic absorption spectrometry, and other detection methods, and the methods’ applicability, the advantages, and disadvantages are discussed. The detection limits of voltammetry and atomic absorption spectrometry are as low as 0.1 μg/L, and those of atomic absorption spectrometry are as low as 2 μg/L. The detection limit of photometry is higher (0.01 mg/L), but this method can be achieved in most laboratories. The application of different extraction pretreatment technologies in lead ion detection is introduced. The new technologies develop at home and abroad, such as precious metal nanogold technology, paper microfluidic technology, fluorescence molecular probe technology, spectroscopy, and other emerging technologies in recent years, are reviewed, and the principle and application of various technologies are expounded.

show abstract

“…Finally, this highly sensitive sensor was employed to determine lead and cadmium levels in real rice samples (Table S1). [23][24][25][26][27][28]…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Detection of Lead and Cadmium Ion Concentrations in Rice with Differential Pulse Voltammetry and Ionic Liquid/Reduced Graphene Oxide Composite-Modified Glassy Carbon Electrodes

LIU,

SONG,

SHI

et al. 2023

Electrochemistry

View full text Add to dashboard Cite

In this paper, an ionic liquid (IL) was dripped onto a reduced graphene oxide (R-GO) and composite-modified glassy carbon electrode (GCE) used as an electrochemical sensor. The sensor was used to detect the lead and cadmium ions codeposited with bismuth ions in rice by differential pulse voltammetry. The method exhibited good linearity and perfect applicability. The developed sensor was used to determine the contents of lead and cadmium in rice, and the results were compared with those of the certified method; there was no significant difference between the developed sensor and the certified method at the 95 % confidence level, so the method could be applied in practice.

show abstract

Platinum Nanoflower-Modified Electrode as a Sensitive Sensor for Simultaneous Detection of Lead and Cadmium at Trace Levels

Cited by 14 publications

References 35 publications

Square-Wave Pulse Deposition of Pt Nanoparticles for Ethanol Electrooxidation

Square-Wave Pulse Deposition of Pt Nanoparticles for Ethanol Electrooxidation

Detection Techniques for Lead Ions in Water: A Review

Simultaneous Detection of Lead and Cadmium Ion Concentrations in Rice with Differential Pulse Voltammetry and Ionic Liquid/Reduced Graphene Oxide Composite-Modified Glassy Carbon Electrodes

Contact Info

Product

Resources

About