Sensing Application — Fluorescent metal-organic frameworks for selective sensing of toxic cations (Tl3+, Hg2+) and highly oxidizing anions ((CrO4)2−, (Cr2O7)2−, (MnO4)−)

4 measurement groups · 20 results

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

Fluorescence quenching titration with anions; Stern-Volmer analysis

Photoluminescence and fluorescence spectroscopy

compound I yellow platelike crystals · Single Crystal

3 mg MOF dispersed in 15 mL water; 2.5 mL MOF solution in cuvette; 1 mM chromate, dichromate, or permanganate solutions added incrementally; emission monitored at 500 nm with 420 nm excitation.

Temperature: room temperature
Atmosphere: aqueous
Geometry: cuvette fluorescence measurement
Context: pristine MOF dispersed in water
Measurement source: p007 / article p.1159 · Anion Sensing · Figure 8; Table S6 referenced

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Limit of detection for Cr2O7^2-Marked as a best value within this paper	71.20 ppb	—	—	SI Table Exact Reported	SI p.23 · Detection limits calculation · Table S6
Limit of detection for CrO4^2-Marked as a best value within this paper	303.52 ppb	—	—	SI Table Exact Reported	SI p.23 · Detection limits calculation · Table S6
Limit of detection for MnO4-Marked as a best value within this paper	69.57 ppb	—	—	SI Table Exact Reported	SI p.23 · Detection limits calculation · Table S6
Third-cycle quenching efficiency for Cr2O7^2-Marked as a best value within this paper	96.75%	—	—	Text Exact Reported	p007 / article p.1159 · Anion Sensing · Figure S22 referenced
Third-cycle quenching efficiency for CrO4^2-	55.93%	—	—	Text Exact Reported	p007 / article p.1159 · Anion Sensing · Figure S22 referenced
Third-cycle quenching efficiency for MnO4-	95.47%	—	—	Text Exact Reported	p007 / article p.1159 · Anion Sensing · Figure S22 referenced

Fluorescence quenching titration with metal ions; Stern-Volmer analysis

Photoluminescence and fluorescence spectroscopy

compound I yellow platelike crystals · Single Crystal

3 mg MOF dispersed in 15 mL water; 2.5 mL MOF solution used; 1 mM metal-ion solutions incrementally added; excitation wavelength 420 nm.

Temperature: room temperature
Atmosphere: aqueous
Geometry: cuvette fluorescence measurement
Context: pristine MOF dispersed in water
Measurement source: p005 / article p.1157 · Metal-Ion Sensing · Figure 4; Table S5 referenced

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Stern-Volmer constant for Hg2+	21000 M^-1	—	—	Text Exact Reported	p005 / article p.1157 · Metal-Ion Sensing · Figure S15 referenced
Limit of detection for Hg2+Marked as a best value within this paper	432.79 ppb	—	—	SI Table Exact Reported	SI p.17 · Detection limits calculation · Table S5
Stern-Volmer constant for Tl3+Marked as a best value within this paper	195270 M^-1	—	—	Text Exact Reported	p005 / article p.1157 · Metal-Ion Sensing · Figure S15 referenced
Limit of detection for Tl3+Marked as a best value within this paper	146.52 ppb	—	—	SI Table Exact Reported	SI p.17 · Detection limits calculation · Table S5

Fluorescence quenching titration with anions; Stern-Volmer analysis

Photoluminescence and fluorescence spectroscopy

compound II yellow needlelike crystals · Single Crystal

3 mg MOF dispersed in 15 mL water; 2.5 mL MOF solution in cuvette; 1 mM chromate, dichromate, or permanganate solutions added incrementally; emission monitored at 500 nm with 420 nm excitation.

Temperature: room temperature
Atmosphere: aqueous
Geometry: cuvette fluorescence measurement
Context: pristine MOF dispersed in water
Measurement source: p007 / article p.1159 · Anion Sensing · Figure 8; Table S6 referenced

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Limit of detection for Cr2O7^2-	153.19 ppb	—	—	SI Table Exact Reported	SI p.23 · Detection limits calculation · Table S6
Limit of detection for CrO4^2-	441.24 ppb	—	—	SI Table Exact Reported	SI p.23 · Detection limits calculation · Table S6
Limit of detection for MnO4-	398.84 ppb	—	—	SI Table Exact Reported	SI p.23 · Detection limits calculation · Table S6
Third-cycle quenching efficiency for Cr2O7^2-	93.51%	—	—	Text Exact Reported	p007 / article p.1159 · Anion Sensing · Figure S22 referenced
Third-cycle quenching efficiency for CrO4^2-	46.89%	—	—	Text Exact Reported	p007 / article p.1159 · Anion Sensing · Figure S22 referenced
Third-cycle quenching efficiency for MnO4-	73.79%	—	—	Text Exact Reported	p007 / article p.1159 · Anion Sensing · Figure S22 referenced

Fluorescence quenching titration with metal ions; Stern-Volmer analysis

Photoluminescence and fluorescence spectroscopy

compound II yellow needlelike crystals · Single Crystal

3 mg MOF dispersed in 15 mL water; 2.5 mL MOF solution used; 1 mM metal-ion solutions incrementally added; excitation wavelength 420 nm.

Temperature: room temperature
Atmosphere: aqueous
Geometry: cuvette fluorescence measurement
Context: pristine MOF dispersed in water
Measurement source: p005 / article p.1157 · Metal-Ion Sensing · Figure 4; Table S5 referenced

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Stern-Volmer constant for Hg2+	3300 M^-1	—	—	Text Exact Reported	p005 / article p.1157 · Metal-Ion Sensing · Figure S15 referenced
Limit of detection for Hg2+	1.82 ppm	1820 ppb	—	SI Table Exact Reported	SI p.17 · Detection limits calculation · Table S5
Stern-Volmer constant for Tl3+	21900 M^-1	—	—	Text Exact Reported	p005 / article p.1157 · Metal-Ion Sensing · Figure S15 referenced
Limit of detection for Tl3+	629.36 ppb	—	—	SI Table Exact Reported	SI p.17 · Detection limits calculation · Table S5