Sheng D., Zhu L., Xu C. et al. · Environmental Science and Technology · 2017 · 3471-3479
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.
SCU-100 rapidly removes TcO4- from water, reaching 99.5% removal after 30 min by liquid scintillation counting.
Caveat: Batch sorption conditions used 28 ppm TcO4- and 1 g/L solid/liquid ratio.
5 · Anion Exchange Properties of SCU-100 · Figure 3b · Linked to 1 structured result
SCU-100 removes TcO4- from a simulated Hanford LAW melter off-gas scrubber stream despite large excesses of nitrate, nitrite and chloride.
Caveat: Simulated stream, not an actual radioactive waste sample.
6 · TcO4- Removal from a Hanford LAW Melter Off-Gas Scrubber Solution · Table 1; Figure 4b · Linked to 3 structured results
SCU-100 maintains crystallinity after pH 1-13 aqueous exposure and after 200 kGy beta or gamma irradiation.
Caveat: Stability is assessed mainly by PXRD and retained sorption, not long-term cycling.
4 · Hydrolytical and Radiolytical Stability · Figure 2 · Linked to 3 structured results
The paper does not report electrical conductivity, electronic transport, thermoelectric data, device geometry or electrochemical charge-storage metrics for SCU-100.
Caveat: The paper is relevant to ion-exchange transport/remediation rather than conductive-MOF electrical transport.
1 · Abstract
Open Ag+ sites in SCU-100 selectively bind ReO4-/TcO4- through Ag-O-Re coordination and hydrogen bonding, producing high selectivity against nitrate, sulfate, phosphate and carbonate.
Caveat: Mechanistic structure is solved with ReO4- as TcO4- surrogate.
6 · Sorption Mechanism · Figure 5; SI Table S7 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| comparison anion-exchange sorbents | Mg-Al LDH; NDTB-1; Y2(OH)5Cl; Yb3O(OH)6Cl; Purolite A532E; Purolite A530Evarious inorganic cationic frameworks/layered hydroxides/resins · not applicable or proprietary for resins | unknown · UnknownNon-target comparison sorbents used for ReO4-/TcO4- uptake benchmarking. | 5 · Anion Exchange Properties of SCU-100 · Figure 3d |
| SCU-100 | [Ag2(tipm)]·2NO3·1.5H2OTwo-coordinate Ag+ cations with open Ag+ sites. · tipm = tetrakis[4-(1-imidazolyl)phenyl]methane. | 3D · PristineMicroporous 8-fold interpenetrated 3D cationic MOF, tetragonal P42/nbc, 1D channels occupied by disordered nitrate anions and solvent. | 2 · Introduction · Figure 1 |
| SCU-100-Re | [Ag2(tipm)]·2ReO4·nH2OAg+ sites converted from two-coordinate to four-coordinate environments by ReO4- coordination. · tipm = tetrakis[4-(1-imidazolyl)phenyl]methane. | 3D · PristineReO4-loaded SCU-100 after single-crystal-to-single-crystal transformation; tetragonal P-4, 4-fold interpenetrated topology. | 6 · Sorption Mechanism · Figure 5 |
| tipm ligand | tetrakis[4-(1-imidazolyl)phenyl]methanenone · Neutral tetradentate nitrogen-donor ligand. | 0D · UnknownOrganic linker precursor for SCU-100; crystallises in two phases according to SI. | S3 · Experimental preparation |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| benchmark sorbent setresearch_0207__mat__mat_comparison_sorbents | Powder · Paper Level Unspecified · Unknown | used as received or synthesised for comparison; individual recipes not detailed in this paper beyond literature references | S15 · Results of exchange efficiency · Table S3 |
| SCU-100 crystalsresearch_0207__mat__mat_scu100 | Single Crystal · Target Sample · Pristine Framework | solvothermally synthesised, ethanol-washed, air-dried light-yellow blocks | 3 · Synthesis of SCU-100 and SCU-100-Re |
| SCU-100 after ReO4- desorptionresearch_0207__mat__mat_scu100 | Powder · Target Sample · Pristine Framework | ReO4-loaded SCU-100 eluted in 1 M NaNO3 for 12 h | 6 · Selectivity and Reversibility · SI Figure S17 |
| beta/gamma irradiated SCU-100research_0207__mat__mat_scu100 | Powder · Target Sample · Pristine Framework | SCU-100 after beta irradiation at 80 or 200 kGy and gamma irradiation at 100 or 200 kGy | 4 · beta and gamma Radiation Resistance Measurements · Figure 2 |
| pH-treated SCU-100research_0207__mat__mat_scu100 | Powder · Target Sample · Pristine Framework | SCU-100 soaked for 12 h in aqueous HNO3 or NaOH solutions with pH 1-13 | 4 · Hydrolytic Stability Measurements · Figure 2 |
| ReO4- sorbed SCU-100 crystalsresearch_0207__mat__mat_scu100_re | Single Crystal · Target Sample · Guest Loaded | SCU-100 crystals soaked in NaReO4 solution, filtered and washed | 3 · Synthesis of SCU-100 and SCU-100-Re |
| tipm ligand crystals/powderresearch_0207__mat__mat_tipm | Single Crystal · Paper Level Unspecified · Unknown | microwave-synthesised and recrystallised from methanol | S3 · Synthesis of the ligand tipm |