Electrochemistry Application — Electro Fenton degradation of glyphosate by incrassated defect-free conductive Cu metal organic framework

7 measurement groups · 30 results

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

No-electricity glyphosate adsorption control

10CAT-1 Film · Electrode

Cu(OH)2 network, CAT-1 Film and 10CAT-1 Film immersed for 1 h in 20 mg/L glyphosate at pH 7, 200 rpm, without applied electro-Fenton current.

Atmosphere: ambient aqueous solution
Geometry: paper-supported films/precursor
Context: adsorption controls for electro-Fenton application
Measurement source: 16 · Supporting information · Fig. S12

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Glyphosate physical adsorption by 10CAT-1 Film after 1 h	approximately 8.6%	—	—	Figure Axis Approximate	16 · Supporting information · Fig. S12
Glyphosate physical adsorption by CAT-1 Film after 1 h	approximately 6.3%	—	—	Figure Axis Approximate	16 · Supporting information · Fig. S12
No-electricity glyphosate adsorption by controls	all adsorption rates account for less than 10% of glyphosate removal	—	less than	Text Range	9 · 3.5 Glyphosate degradation performance evaluation · Fig. S12
Glyphosate physical adsorption by Cu(OH)2 network after 1 h	approximately 2.1%	—	—	Figure Axis Approximate	16 · Supporting information · Fig. S12

RDE/RRDE oxygen reduction analysis

Cu-HHTP powder · Powder

RRDE/RDE ORR analysis of pristine Cu-HHTP powder in O2-saturated 0.1 M KOH; main Fig. 4d and SI Fig. S9.

Atmosphere: O2-saturated 0.1 M KOH in SI caption
Geometry: Cu-HHTP powder catalyst on RRDE
Context: Pristine Cu-HHTP powder ORR control for H2O2 generation.
Measurement source: 13 · Supporting information · Fig. S9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-HHTP H2O2 yield/selectivity at 0.6 V vs RHE	approximately 53% at 0.6 V vs RHE	—	—	Figure Axis Approximate	13 · Supporting information · Fig. S9
Cu-HHTP H2O2 yield/selectivity near 0.8 V vs RHE	approximately 95% at 0.8 V vs RHE	—	—	Figure Axis Approximate	13 · Supporting information · Fig. S9
Cu-HHTP powder RRDE electron transfer number visible in Fig. 4d	n = 3.36 at 0.6 V vs RHE	—	—	Figure Axis Rounded Reported	7 · 3.4 Incrassated Cu-HHTP layer promotes the electrochemical performance · Fig. 4d
Cu-HHTP RRDE electron transfer number at 0.6 V vs RHE from SI Fig. S9	approximately 3.0 at 0.6 V vs RHE	—	—	Figure Axis Approximate	13 · Supporting information · Fig. S9
Cu-HHTP powder RRDE electron transfer number reported in text	n = 3.04 when the potential lays in 0.4 V vs RHE	—	Main figure label appears inconsistent	Text Uncertain	7 · 3.4 Incrassated Cu-HHTP layer promotes the electrochemical performance · Fig. 4d

ICP-MS/ICP-OES copper leaching after glyphosate electro-Fenton degradation

Bulk elemental and compositional analysis

10CAT-1 Film · Electrode

20 mg/L glyphosate, pH 7 for cycle test or varied pH, 200 rpm, 0.5 mA cm-2; samples diluted 10 times and recalculated.

Atmosphere: ambient aqueous solution
Geometry: 10CAT-1 Film working electrode
Context: application stability of paper-supported Cu-HHTP film
Measurement source: 14 · Supporting information · Fig. S10

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
10CAT-1 Cu leaching after cycle 1 at pH 7	approximately 3.0 ppm	—	—	Figure Axis Approximate	14 · Supporting information · Fig. S10
10CAT-1 Cu leaching after cycle 3 at pH 7	approximately 4.0 ppm	—	—	Figure Axis Approximate	14 · Supporting information · Fig. S10
10CAT-1 Cu leaching after cycle 5 at pH 7	approximately 6.7 ppm	—	—	Figure Axis Approximate	14 · Supporting information · Fig. S10
10CAT-1 Cu leaching at pH 10	approximately 6.7 ppm	—	—	Figure Axis Approximate	14 · Supporting information · Fig. S10
10CAT-1 Cu leaching at pH 4	approximately 3.0 ppm	—	—	Figure Axis Approximate	14 · Supporting information · Fig. S10
10CAT-1 Cu leaching at pH 7	approximately 3.0 ppm	—	—	Figure Axis Approximate	14 · Supporting information · Fig. S10

CV, LSV and EIS

Impedance spectroscopy Voltammetry

10CAT-1 Film · Electrode

Bio-Logic SP-300; CV after 100 scans at 20 mV s-1; LSV at 5 mV s-1 in PBS pH 7.0; EIS Nyquist at 1.40 V vs RHE in 1 M KOH.

Geometry: paper-supported Cu-HHTP film attached to FTO conductive glass; Ag/AgCl reference and Pt counter for electrochemical testing
Context: CAT-1 control vs 10CAT-1 target electrochemical performance.
Measurement source: 7 · 3.4 Incrassated Cu-HHTP layer promotes the electrochemical performance · Fig. 4a-c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
10CAT-1 Film CV response vs CAT-1Marked as a best value within this paper	two pairs of redox peaks after 100 scans; larger peak area and lower polarization than CAT-1	—	—	Text Qualitative	7 · 3.4 Incrassated Cu-HHTP layer promotes the electrochemical performance · Fig. 4a
10CAT-1 Film EIS charge-transfer resistance trendMarked as a best value within this paper	smallest semicircle radius compared with CAT-1 Film	—	—	Text Qualitative	7 · 3.4 Incrassated Cu-HHTP layer promotes the electrochemical performance · Fig. 4c
10CAT-1 Film LSV oxygen-reduction current trendMarked as a best value within this paper	oxygen reduction current increases with Cu volume in the aging solution	—	—	Text Qualitative	7 · 3.4 Incrassated Cu-HHTP layer promotes the electrochemical performance · Fig. 4b

Electro-Fenton glyphosate degradation with HPLC/TOC quantification

10CAT-1 Film · Electrode

Ambient air, light-protected, two-electrode system, 20 mg/L glyphosate, pH 7.0, 0.5 mA cm-2, 200 rpm, 1 h.

Atmosphere: ambient air
Geometry: 10CAT-1 Film working electrode and Pt sheet counter electrode
Context: CAT-1 control compared with 10CAT-1 target.
Measurement source: 3 · 2.7 Electro catalyst's evaluation · Fig. 5a,b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
10CAT-1 Film glyphosate degradation efficiency at pH 7 after 1 hMarked as a best value within this paper	almost 75%; abstract/conclusion state 75% in 1 h	—	almost	Text Approximate	7 · 3.5 Glyphosate degradation performance evaluation · Fig. 5a
10CAT-1 Film pseudo-first-order glyphosate degradation rate constantMarked as a best value within this paper	k = 0.022 min-1	—	—	Text Exact Reported	7 · 3.5 Glyphosate degradation performance evaluation · Fig. 5b
10CAT-1 Film TOC removal efficiencyMarked as a best value within this paper	almost 75% TOC removal	—	almost	Text Approximate	7 · 3.5 Glyphosate degradation performance evaluation · Fig. 5a
CAT-1 Film glyphosate degradation efficiency at pH 7 after 1 h	59%	—	—	Text Rounded Reported	7 · 3.5 Glyphosate degradation performance evaluation · Fig. 5a
CAT-1 Film TOC removal efficiency	42% TOC removal efficiency	—	—	Text Rounded Reported	7 · 3.5 Glyphosate degradation performance evaluation · Fig. 5a

pH-dependent degradation and no-electricity adsorption controls

10CAT-1 Film · Electrode

Glyphosate degradation at pH 4, 7 and 10; adsorption controls for Cu(OH)2 network, CAT-1 Film and 10CAT-1 Film without electricity.

Atmosphere: ambient air
Geometry: paper-supported films immersed in glyphosate electrolyte
Context: Target and control films under different pH and adsorption-only conditions.
Measurement source: 9 · 3.5 Glyphosate degradation performance evaluation · Fig. S10-S12

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
10CAT-1 Film glyphosate degradation at pH 10	40.11% degradation rate in alkaline system	—	—	Text Exact Reported	9 · 3.5 Glyphosate degradation performance evaluation · Fig. S10; Fig. S11
10CAT-1 Film glyphosate degradation at pH 4Marked as a best value within this paper	86.35%	—	—	Text Exact Reported	9 · 3.5 Glyphosate degradation performance evaluation · Fig. S11
CAT-1 Film glyphosate degradation at pH 10	approximately 31%	—	—	Figure Axis Approximate	15 · Supporting information · Fig. S11
CAT-1 Film glyphosate degradation at pH 4	approximately 61%	—	—	Figure Axis Approximate	15 · Supporting information · Fig. S11

Five-cycle electro-Fenton reuse test

10CAT-1 Film · Electrode

Five glyphosate removal cycles under the same pH 7 electro-Fenton conditions.

Atmosphere: ambient air
Geometry: 10CAT-1 Film working electrode
Context: Target film recycling stability.
Measurement source: 9 · 3.5 Glyphosate degradation performance evaluation · Fig. 5c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
10CAT-1 Film first-cycle glyphosate removal efficiencyMarked as a best value within this paper	75.42%	—	—	Text Exact Reported	9 · 3.5 Glyphosate degradation performance evaluation · Fig. 5c
10CAT-1 Film fifth-cycle glyphosate removal efficiency	68.92%	—	—	Text Exact Reported	9 · 3.5 Glyphosate degradation performance evaluation · Fig. 5c
10CAT-1 Film five-cycle removal-efficiency decline	decline of only 6.50%	—	—	Text Exact Reported	9 · 3.5 Glyphosate degradation performance evaluation · Fig. 5c