Evaluation of doped potassium concentrations in stacked Two-Layer graphene using Real-time XPS

Ogawa, Satoshi; Tsuda, Yasutaka; Sakamoto, Tetsuya; Okigawa, Yuki; Masuzawa, Tomoaki; Yoshigoe, Akitaka; Abukawa, T.; Yamada, Takatoshi

doi:10.1016/j.apsusc.2022.154748

Cited by 6 publications

(1 citation statement)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 1s spectra of the major heteroelement N (Figure 3d) have been deconvoluted into three peaks-the pyridinic N at 399.0 eV (16.4%), pyrrolic N at 399.8 eV (42.8%), and graphitic N at 400.6 eV (40.8%). [22,23]…”

Section: Characterization Of Cdsmentioning

confidence: 99%

Chromolaena Odorata Leaves Derived Carbon Dot‐Based Fluorescence/Second‐Order Scattering Ratiometric Sensor for Fe³⁺ and Vitamin C

Amrutha,

Manivannan

2024

Physica Status Solidi (a)

View full text Add to dashboard Cite

Herein, a ratiometric fluorescence and second‐order scattering sensor with plant leaf‐derived carbon dots (CDs) for Fe3+ and vitamin C is reported. The CDs are prepared from Chromolaena odorata leaves through a one‐pot hydrothermal method. The synthesized CDs have a quantum yield of 22.6%. The spherical dots have an average size of 3 nm and the chemical composition is found as nitrogen (7%) being the highest heteroatom present along with carbon and oxygen atoms in it. The ratio between fluorescence intensity at 445 nm and second‐order scattering constitutes the sensor output. A linear relationship is found between the output and analyte concentration in the range 0–70 and 0–10 μM with limit of detection 0.12 and 1.2 μM for Fe3+ and vitamin C, respectively. Static mechanism along with inner filter effect has been identified as the underlying quenching mechanism for Fe3+ activity. The strong chelation of Fe3+ by vitamin C further enhances the fluorescence. The change in the second‐order scattering intensity is explained by the formation and disruption of CDs/Fe3+ complex. The sensor also shows satisfactory performance with borewell water (Fe3+) and commercial tablet (vitamin C) with recovery rate ranging between 98.6% and 103.5%.

show abstract

Section: Characterization Of Cdsmentioning

confidence: 99%

Chromolaena Odorata Leaves Derived Carbon Dot‐Based Fluorescence/Second‐Order Scattering Ratiometric Sensor for Fe³⁺ and Vitamin C

Amrutha,

Manivannan

2024

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

Migration and solidification behavior of the semivolatile heavy metal elements Zn and Cd during high ferrite cement clinker (HFCC) calcination

Zhang

et al. 2023

Cement and Concrete Composites

View full text Add to dashboard Cite

Two new 3-D vanadoborates incorporating rare polymeric K-O-K chain or network with photocatalytic properties

Wang,

Liu,

Zhou

2024

Inorganic Chemistry Communications

View full text Add to dashboard Cite

Evaluation of doped potassium concentrations in stacked Two-Layer graphene using Real-time XPS

Cited by 6 publications

References 37 publications

Chromolaena Odorata Leaves Derived Carbon Dot‐Based Fluorescence/Second‐Order Scattering Ratiometric Sensor for Fe³⁺ and Vitamin C

Chromolaena Odorata Leaves Derived Carbon Dot‐Based Fluorescence/Second‐Order Scattering Ratiometric Sensor for Fe³⁺ and Vitamin C

Migration and solidification behavior of the semivolatile heavy metal elements Zn and Cd during high ferrite cement clinker (HFCC) calcination

Two new 3-D vanadoborates incorporating rare polymeric K-O-K chain or network with photocatalytic properties

Contact Info

Product

Resources

About

Evaluation of doped potassium concentrations in stacked Two-Layer graphene using Real-time XPS

Cited by 6 publications

References 37 publications

Chromolaena Odorata Leaves Derived Carbon Dot‐Based Fluorescence/Second‐Order Scattering Ratiometric Sensor for Fe3+ and Vitamin C

Chromolaena Odorata Leaves Derived Carbon Dot‐Based Fluorescence/Second‐Order Scattering Ratiometric Sensor for Fe3+ and Vitamin C

Migration and solidification behavior of the semivolatile heavy metal elements Zn and Cd during high ferrite cement clinker (HFCC) calcination

Two new 3-D vanadoborates incorporating rare polymeric K-O-K chain or network with photocatalytic properties

Contact Info

Product

Resources

About

Chromolaena Odorata Leaves Derived Carbon Dot‐Based Fluorescence/Second‐Order Scattering Ratiometric Sensor for Fe³⁺ and Vitamin C

Chromolaena Odorata Leaves Derived Carbon Dot‐Based Fluorescence/Second‐Order Scattering Ratiometric Sensor for Fe³⁺ and Vitamin C