Spectroscopy — Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization

6 measurement groups · 16 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

B-g-C3N4/ZIF-8 powder · Powder

Functional-unit assignment for g-C3N4, doped g-C3N4 and ZIF-8 hybridised composites.

Geometry: powder
Context: target MOF composite
Measurement source: 4 · 3.1.2 Fourier-transform infrared spectroscopy (FTIR) · Fig. 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Zn-N FTIR band	426 cm-1	—	—	Text Exact Reported	4 · 3.1.2 Fourier-transform infrared spectroscopy (FTIR) · Fig. 4

B-g-C3N4 powder · Powder

Absorption spectra 280-700 nm; band gap from Tauc plot.

Geometry: powder
Context: doped control
Measurement source: 5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
band gap energy	2.36 eV	—	—	Text Exact Reported	5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5b
light absorption wavelength	447 nm	—	—	Text Exact Reported	4-5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5a

B-g-C3N4/ZIF-8 powder · Powder

Absorption spectra 280-700 nm; band gap from Tauc plot.

Geometry: powder
Context: target MOF composite
Measurement source: 5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
band gap energyMarked as a best value within this paper	2.42 eV	—	—	Text Exact Reported	5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5b
light absorption wavelengthMarked as a best value within this paper	468 nm	—	—	Text Exact Reported	4-5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5a

g-C3N4 powder · Powder

Absorption spectra 280-700 nm; band gap from Tauc plot of (alpha h nu)^2 vs energy.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
band gap energy	1.878 eV	—	—	Text Exact Reported	5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5b
light absorption wavelength	424 nm	—	—	Text Exact Reported	4-5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5a

g-C3N4/ZIF-8 powder · Powder

Absorption spectra 280-700 nm; band gap from Tauc plot.

Geometry: powder
Context: MOF composite
Measurement source: 5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
band gap energy	2.28 eV	—	—	Text Exact Reported	5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5b
light absorption wavelength	432 nm	—	—	Text Exact Reported	4-5 · 3.1.3 UV-visible spectroscopy and Tauc plot · Fig. 5a

B-g-C3N4/ZIF-8 powder · Powder

Surface elemental composition and binding-energy assignments; XPS depth noted as about 3 nm.

Geometry: powder surface
Context: all catalysts; target composite detailed spectra
Measurement source: 5-6 · 3.1.4 X-ray photoelectron spectroscopy (XPS) · Fig. 6; Table 2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
B1s B-O binding energy	193.3 eV	—	—	Text Exact Reported	5 · 3.1.4 X-ray photoelectron spectroscopy (XPS) · Fig. 6d
B1s C-NB binding energy	192.1 eV	—	—	Text Exact Reported	5 · 3.1.4 X-ray photoelectron spectroscopy (XPS) · Fig. 6d
XPS boron atomic percentage in B-g-C3N4/ZIF-8	2.68 atom %	—	—	Table Exact Reported	6 · 3.1.4 X-ray photoelectron spectroscopy (XPS) · Table 2
XPS zinc atomic percentage in B-g-C3N4/ZIF-8Marked as a best value within this paper	4.87 atom %	—	—	Table Exact Reported	6 · 3.1.4 X-ray photoelectron spectroscopy (XPS) · Table 2
XPS zinc atomic percentage in g-C3N4/ZIF-8	4.14 atom %	—	—	Table Exact Reported	6 · 3.1.4 X-ray photoelectron spectroscopy (XPS) · Table 2
Zn2p1/2 binding energy	1045.8 eV	—	—	Text Exact Reported	5 · 3.1.4 X-ray photoelectron spectroscopy (XPS) · Fig. 6e
Zn2p3/2 binding energy	1028.8 eV	—	—	Text Exact Reported	5 · 3.1.4 X-ray photoelectron spectroscopy (XPS) · Fig. 6e