Guan Z., Zhu S., Ding S. et al. · Chemosphere · 2022 · 134481
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
FeUiO-1 is the best-performing sample in the FeUiO-X series for BPA removal, reaching about 97% removal in 30 min and a 0.1209 min-1 rate constant under optimal conditions.
Caveat: The article reports both about 96.94% and 97% removal depending on the passage; these are treated as the same rounded performance.
11 · 4 Conclusion · Fig. 4 · Linked to 4 structured results
FeUiO-1 has usable cycling stability, retaining about 86.4% BPA degradation after five runs with low Fe dissolution.
Caveat: Long-term stability beyond five cycles was not studied; rendered SI Table S4 provides individual Fe dissolution values and SI figures show post-use morphology/FTIR/XRD qualitatively.
9 · 3.4 Stability and recyclability · Fig. 6a-c · Linked to 2 structured results
The paper provides electrochemical and photoresponse evidence for electron transfer but does not report a direct electrical conductivity, mobility or thermoelectric measurement for the MOF powders.
Caveat: SI Text S4 provides electrochemical test conditions, but neither the main text nor the supplied SI text reports a direct conductivity, mobility or thermoelectric metric.
10 · 3.5 Possible degradation mechanism · Fig. 8 · Linked to 4 structured results
Fe introduction narrows the UiO-66 bandgap from 3.89 eV to 2.02 eV and shifts absorption into the visible region, enabling better visible-light photo-Fenton activity.
Caveat: UV-vis spectra are available in rendered SI Fig. S4 but exact absorption-edge values are mainly text/figure-label based; Tauc values are from main Fig. 3b.
1 · Abstract · Fig. 3b · Linked to 4 structured results
Hydroxyl radicals and photogenerated holes are the main active species in BPA degradation, while superoxide has a secondary role.
Caveat: The article highlight/OCR uses 'vacancies', whereas the mechanism text and conclusion identify h+ holes; extraction follows the detailed mechanism text.
10 · 3.5 Possible degradation mechanism · Fig. 7 · Linked to 3 structured results
Fe-O-Zr bonding in FeUiO-1 promotes photogenerated electron transfer, suppresses electron-hole recombination and enhances Fe(III)/Fe(II) cycling in the photo-Fenton system.
Caveat: Mechanistic interpretation is based on indirect spectroscopy/electrochemistry and post-reaction XPS; no direct electronic conductivity value is reported.
11 · 4 Conclusion · Fig. 8; Fig. 9 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| FeUiO-X | Fe-doped UiO-66 containing Fe-O-Zr bonds; X = 0.05, 0.1, 0.5, 1 or 2 based on FeSO4 mass usedZr-oxo clusters with introduced Fe species and Fe-O-Zr bonding · Terephthalic acid / BDC inherited from UiO-66 | 3D · PristineUiO-66-like crystalline framework retained after Fe introduction; FeUiO-1 shows no Fe oxidation peak and XPS/FTIR evidence for Fe-O-Zr. | 3 · 3.1 Morphologies and structures of UiO-66 and FeUiO-X · Fig. 1; Fig. 2 |
| UiO-66 | Zr-BDC framework; exact formula not reported in main textZr-oxo clusters · Terephthalic acid / BDC | 3D · PristineUiO-66 crystalline phase with peaks at 7.38, 8.52, 14.84, 17.1, 22.26, 25.8, 30.79 and 40.95 degrees assigned to (111), (200), (222), (400), (511), (600), (711) and (860). | 3 · 3.1 Morphologies and structures of UiO-66 and FeUiO-X · Fig. 1a-b |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| BPA degradation intermediates in FeUiO-1/H2O2/visible-light systemresearch_0535__mat__mat_feuio_x | Model · Model System · Model | Computational/toxicity-assessment model for reaction intermediates. | 9 · 3.4 Stability and recyclability of catalysts · Fig. 6d-g |
| FeUiO-1 powder/FTO electrochemical electroderesearch_0535__mat__mat_feuio_x | Electrode · Target Sample · Composite | FeUiO-1 powder dispersed with Nafion in ethanol, drop-cast on FTO and vacuum dried at 60 C for 8 h.FTO | Text S4 Electrochemical analysis tests |
| FeUiO-0.05research_0535__mat__mat_feuio_x | Powder · Target Sample · Doped | Post-synthetic Fe treatment of UiO-66 using 0.05 g FeSO4 in methanol; washed to remove excess surface iron and dried. | 3 · 2.2 Preparation of materials |
| FeUiO-0.1research_0535__mat__mat_feuio_x | Powder · Target Sample · Doped | Post-synthetic Fe treatment of UiO-66 using 0.1 g FeSO4 in methanol; washed to remove excess surface iron and dried. | 3 · 2.2 Preparation of materials |
| FeUiO-0.5research_0535__mat__mat_feuio_x | Powder · Target Sample · Doped | Post-synthetic Fe treatment of UiO-66 using 0.5 g FeSO4 in methanol; washed to remove excess surface iron and dried. | 3 · 2.2 Preparation of materials |
| FeUiO-1research_0535__mat__mat_feuio_x | Powder · Target Sample · Doped | Post-synthetic Fe treatment of UiO-66 using 1 g FeSO4 in methanol; washed to remove excess surface iron and dried. | 5 · 3.2 Optical Fenton performance of the catalyst · Fig. 4a |
| FeUiO-2research_0535__mat__mat_feuio_x | Powder · Target Sample · Doped | Post-synthetic Fe treatment of UiO-66 using 2 g FeSO4 in methanol; washed to remove excess surface iron and dried. | 3 · 2.2 Preparation of materials |
| FeUiO-X seriesresearch_0535__mat__mat_feuio_x | Powder · Target Sample · Doped | Series prepared by varying FeSO4 mass during post-synthetic Fe treatment of UiO-66. | 2 · Figure caption · Fig. 1 |
| UiO-66research_0535__mat__mat_uio66 | Powder · Pristine Control · Pristine Framework | Centrifuged, washed twice with water and once with methanol, and dried overnight at 70 C. | 3 · 2.2 Preparation of materials |
| UiO-66 powder/FTO electrochemical electroderesearch_0535__mat__mat_uio66 | Electrode · Pristine Control · Composite | UiO-66 powder dispersed with Nafion in ethanol, drop-cast on FTO and vacuum dried at 60 C for 8 h.FTO | Text S4 Electrochemical analysis tests |