Spectroscopy — Three-dimensional Co/Ni bimetallic organic frameworks for high-efficient catalytic ozonation of atrazine: Mechanism, effect parameters, and degradation pathways analysis

6 measurement groups · 20 results

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

Co/Ni-MOF brown powder · Powder

DMPO for OH and O2-; TEMP for 1O2; [DMPO] 90 mmol L-1, [TEMP] 63 mmol L-1, O3 8 mg L-1, catalyst 0.5 g L-1; TBA quenching used for OH.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OH-related EPR response	DMPOX observed in Co/Ni-MOF/O3, indicating a strong oxidation system derived from DMPO/OH.	—	—	Text Qualitative	7 · 3.5 Mechanism investigation · Fig. 5a
TEMP/1O2 EPR signal	Triplet TEMP/1O2 peaks observed; catalyst group signals much stronger than without catalyst.	—	aN = 1.704 mT; g = 2.0057	Text Qualitative	7 · 3.5 Mechanism investigation · Fig. 5b
DMPO/O2- EPR signal	DMPO/O2- adducts detected in catalytic ozonation but no signal in ozonation alone.	—	—	Text Qualitative	8 · 3.5 Mechanism investigation · Fig. 5c-d
H2O2 yield comparisonMarked as a best value within this paper	H2O2 yield in Co/Ni-MOF/O3 was much higher than in Ni-MOF/O3 or Co-MOF/O3.	—	—	Text Qualitative	8 · 3.5 Mechanism investigation · Fig. 6c
Atrazine removal with TBA quencher in Co/Ni-MOF/O3	27.9%	—	—	Text Exact Reported	7 · 3.5 Mechanism investigation · Fig. 6a
TEMP/1O2 g factor	g = 2.0057	—	—	Text Exact Reported	7 · 3.5 Mechanism investigation · Fig. 5b
TEMP/1O2 hyperfine splitting aN	aN = 1.704 mT	—	—	Text Exact Reported	7 · 3.5 Mechanism investigation · Fig. 5b

Co/Ni-MOF brown powder · Powder

Nicolet iS5 FTIR; 4000-400 cm-1.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
M-O bond FTIR band	480 cm-1	—	—	Text Rounded Reported	4 · 3.1 Characterization of catalysts · Fig. S7
O-H stretching vibration	approximately 3400 cm-1	—	approximately	Text Approximate	4 · 3.1 Characterization of catalysts · Fig. S7

Co/Ni-MOF brown powder · Powder

Vacuum 10-2 Pa; sample treated to 250 C for 2 h; saturated pyridine vapour adsorption 0.5 h; desorption at 150 C and 250 C for 1 h.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Bronsted acid site py-IR band	1542 cm-1	—	—	Text Rounded Reported	8 · 3.5 Mechanism investigation · Fig. 6b
Lewis acid site py-IR band	1445 cm-1	—	—	Text Rounded Reported	8 · 3.5 Mechanism investigation · Fig. 6b

Co-MOF red crystals · Powder

Al Ka radiation; high-resolution C 1s, O 1s, Co 2p spectra used to assign Co-O and hydroxyl coordination.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co 2p3/2 binding energy in Co-MOF	781.5 eV	—	—	Text Exact Reported	10 · 3.5 Mechanism investigation · Fig. 1c

Co/Ni-MOF brown powder · Powder

EscaLab 250Xi with Al Ka radiation (1486.6 eV).

Context: target bimetallic sample
Measurement source: 3-4 · 3.1 Characterization of catalysts · Fig. 1; Fig. S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
C 1s carboxylate carbon binding energy	288.6 eV	—	approximately	Text Approximate	4 · 3.1 Characterization of catalysts · Fig. 1a
C 1s benzene-ring carbon binding energy	284.8 eV	—	approximately	Text Approximate	4 · 3.1 Characterization of catalysts · Fig. 1a
Co 2p3/2 binding energy in Co/Ni-MOF	781.7 eV	—	—	Text Exact Reported	10 · 3.5 Mechanism investigation · Fig. 1c
Ni 2p3/2 binding energy in Co/Ni-MOF	856.3 eV	—	—	Text Exact Reported	10 · 3.5 Mechanism investigation · Fig. 1d
O 1s carboxyl oxygen binding energy	532.8 eV	—	nearly	Text Approximate	4 · 3.1 Characterization of catalysts · Fig. 1b
O 1s coordinated hydroxyl oxygen binding energy	533.9 eV	—	nearly	Text Approximate	4 · 3.1 Characterization of catalysts · Fig. 1b
O 1s metal-coordinated oxygen binding energy	531.5 eV	—	nearly	Text Approximate	4 · 3.1 Characterization of catalysts · Fig. 1b

Ni-MOF green crystals · Powder

Al Ka radiation; high-resolution C 1s, O 1s, Ni 2p spectra used to assign Ni-O and hydroxyl coordination.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni 2p3/2 binding energy in Ni-MOF	856.6 eV	—	—	Text Exact Reported	10 · 3.5 Mechanism investigation · Fig. 1d