Other — Synthesis, Crystal Structure, and Photocatalytic Properties of a Zinc(II) Coordination Polymer Based on 3-Hydroxy-2-pyridinecarboxylic Acid

4 measurement groups · 14 results

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

Elemental analysis for C, H and N

Bulk elemental and compositional analysis

Complex 1 bulk crystalline product · Powder

Perkin-Elmer 240C elemental analyzer; reported calculated and found percentages for C36H24N6O18Zn3.

Context: pristine framework
Measurement source: 664 · 2.1 Materials and Measurement; 2.2 Synthesis

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Elemental analysis found carbon	C found 41.98%	—	—	Text Exact Reported	664 · 2.2 Synthesis
Elemental analysis found hydrogen	H found 2.27%	—	—	Text Exact Reported	664 · 2.2 Synthesis
Elemental analysis found nitrogen	N found 8.23%	—	—	Text Exact Reported	664 · 2.2 Synthesis
Synthesis yield	35%, based on Zn(NO3)2.6H2O	—	—	Text Rounded Reported	664 · 2.2 Synthesis of [Zn3(HL)6]n (1)

Methylene blue photocatalytic degradation under UV light

Complex 1 bulk crystalline product · Powder

100 mg complex 1 in 200 mL MB solution (10 mg L-1) with 0.2 mL 30% H2O2; 25-27 deg C cooling; 30 min dark adsorption-desorption; 250 W Hg lamp; 4 mL aliquots centrifuged; absorbance monitored at 664 nm every 15 min.

Temperature: 298-300
Geometry: suspension photocatalysis
Context: pristine framework photocatalyst
Measurement source: 664 · 2.4 Photocatalytic Procedure · Figure 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
MB degradation control with complex 1 only	26.5%	—	—	Text Exact Reported	667 · 3.4 Photocatalytic Properties · Figure 4b-d
MB degradation efficiency with complex 1 and H2O2 after 120 minMarked as a best value within this paper	54% at 120 min	—	—	Text Rounded Reported	666 · 3.4 Photocatalytic Properties · Figure 4a,d
MB degradation control with H2O2 only	21.6%	—	—	Text Exact Reported	667 · 3.4 Photocatalytic Properties · Figure 4c-d
Pseudo-first-order fit R2	R2 = 0.998	—	—	Figure Axis Exact Reported	667 · 3.4 Photocatalytic Properties · Figure 4e
Pseudo-first-order MB degradation rate constantMarked as a best value within this paper	6.67 x 10-2 min-1	—	—	Text Exact Reported	668 · 3.4 Photocatalytic Properties · Figure 4e
Photocatalyst recyclability	degradation efficiency remains basically unchanged after five cycles	—	—	Text Qualitative	668 · 3.4 Photocatalytic Properties · Figure 4f

Methyl orange photocatalytic degradation under UV light

Complex 1 bulk crystalline product · Powder

MO degradation compared with MB under UV irradiation in the presence of complex 1 and H2O2; detailed MO recipe not separately described.

Geometry: suspension photocatalysis
Context: pristine framework photocatalyst
Measurement source: 668 · 3.4 Photocatalytic Properties · Figure S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
MO degradation efficiency with complex 1 and H2O2 after 120 min	5.8% after 120 min	—	—	Text Exact Reported	668 · 3.4 Photocatalytic Properties · Figure S6

Thermogravimetric analysis

Complex 1 bulk crystalline product · Powder

NETZSCH STA-449F3, flowing nitrogen, heating rate 10 K min-1, room temperature to 1000 deg C.

Atmosphere: flowing nitrogen
Geometry: bulk solid
Context: pristine framework
Measurement source: 664 · 2.1 Materials and Measurement · Figure 2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Major decomposition onset temperature	From 290 deg C on, it began to lose a large amount of weight	—	—	Text Rounded Reported	666 · 3.3 TG Analysis and Solid-state Diffuse-Reflection Study · Figure 2
TGA residue at 1000 deg C	12.44% residue at 1000 deg C (calcd. 13.36%)	—	—	Text Exact Reported	666 · 3.3 TG Analysis and Solid-state Diffuse-Reflection Study · Figure 2; Figure S4
Initial TGA mass loss	1.96% from 80 to 110 deg C	—	—	Text Exact Reported	666 · 3.3 TG Analysis and Solid-state Diffuse-Reflection Study · Figure 2