UV-vis-NIR, FTIR, TGA and XPS
Infrared spectroscopyX-ray photoelectron spectroscopyUV-visible and optical absorption spectroscopyThermogravimetric analysis
As-synthesised Zn-HHTP-H2O powder · Powder
Electronic absorption and Tauc plot; FTIR/TGA for coordinated water; XPS for Zn oxidation state, Na content and C 1s species.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Distinctive absorption band | 940 nm | — | — | Text Rounded Reported | main p.4 / article p.145 · Results and discussion - Synthesis and characterizations of Zn-HHTP-H2O · Figure 2A |
| Optical band gap | 1.07 eV | — | — | Text Exact Reported | main p.4 / article p.145 · Results and discussion - Synthesis and characterizations of Zn-HHTP-H2O · Figure 2A |
| XPS C=O area ratio to C-O | C=O:C-O = 1:1 | — | — | SI Table Exact Reported | SI p.9 · XPS analysis · Table S3 |
| FTIR O-H stretch | approximately 3100 cm-1 | — | — | Text Approximate | main p.3 / article p.144 · Results and discussion - Synthesis and characterizations of Zn-HHTP-H2O · Figure S6A |
| TGA coordinated-water loss upper temperature | weight loss gradually up to 100 deg C | — | — | Text Approximate | main p.3 / article p.144 · Results and discussion - Synthesis and characterizations of Zn-HHTP-H2O · Figure S6B |
| XPS Na atomic percent | 6.73 atomic % | — | — | SI Table Exact Reported | SI p.9 · XPS analysis · Table S2 |
| XPS Zn atomic percent | 6.70 atomic % | — | — | SI Table Exact Reported | SI p.9 · XPS analysis · Table S2 |
| Zn 2p3/2 binding energy | 1022.9 eV | — | — | Text Exact Reported | main p.4 / article p.145 · Results and discussion - Synthesis and characterizations of Zn-HHTP-H2O · Figure 2B |