Other — Efficient sequestration of radioactive 99TcO4- by a rare 3-fold interlocking cationic metal-organic framework: A combined batch experiments, pair distribution function, and crystallographic investigation

5 measurement groups · 44 results

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

Batch ReO4- removal from simulated Hanford LAW melter recycle stream

ZJU-X6 powder/material for batch sorption · Powder

Different ZJU-X6 amounts from 2.5 mg to 40 mg added to 5 mL simulated Hanford solution; supernatant diluted in 5% nitric acid and Re determined by ICP-OES.

Atmosphere: simulated Hanford LAW melter recycle stream
Context: pristine ZJU-X6 in application simulant
Measurement source: 2,5 · 2.7. Anion exchange experiment with simulated Hanford LAW melter recycle stream; 3.5. Exchange experiments with simulated Hanford waste · Fig. 3b; Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ReO4- removal in Hanford simulant at phase ratio 2 g/L	52%	—	—	Text Exact Reported	5 · 3.5. Exchange experiments with simulated Hanford waste · Fig. 3b
ReO4- removal in Hanford simulant at 4 mg/mL	70%	—	—	Text Exact Reported	5 · 3.5. Exchange experiments with simulated Hanford waste · Fig. 3b
ReO4- removal in Hanford simulant at 8 mg/mL	84%	—	—	Text Exact Reported	5 · 3.5. Exchange experiments with simulated Hanford waste · Fig. 3b
Hanford simulant Cl- concentration	6.39 x 10-2	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant Cl-:ReO4- ratio	330	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant CO3(2-) concentration	4.3 x 10-5	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant CO3(2-):ReO4- ratio	0.222	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant NO2- concentration	1.69 x 10-1	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant NO2-:ReO4- ratio	873	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant NO3- concentration	6.07 x 10-2	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant NO3-:ReO4- ratio	314	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant ReO4- concentration	1.94 x 10-4	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant ReO4-:ReO4- ratio	1.0	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant SO4(2-) concentration	6.64 x 10-6	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2
Hanford simulant SO4(2-):ReO4- ratio	0.0343	—	—	SI Table Exact Reported	S7 · 5. TcO4-/ReO4- uptake experiments · Table S2

Batch ReO4- sorption in competing-anion solutions by ICP-OES

Bulk elemental and compositional analysis

ZJU-X6 powder/material for batch sorption · Powder

10 mg ZJU-X6 in 10 mL 30 ppm ReO4- with equimolar Cl-, IO3-, ClO4-, H2PO4-, NO3- or high SO4(2-)/NO3- ratios; Re by ICP-OES.

Atmosphere: aqueous solution with competing anions
Context: pristine ZJU-X6 selectivity for ReO4-/TcO4-
Measurement source: 2,4-5 · 2.6. Anion competition studies; 3.4. Anion competition studies · Fig. 2c-d; Fig. 3a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ReO4- removal with equimolar competing anions	>98%	—	—	Text Approximate	4 · 3.4. Anion competition studies · Fig. 2c
ReO4- removal at NO3-:ReO4- = 1000:1	>56%	—	—	Text Approximate	5 · 3.4. Anion competition studies · Fig. 3a
ReO4- removal at NO3-:ReO4- up to 100:1	>92%	—	—	Text Approximate	4-5 · 3.4. Anion competition studies · Fig. 3a
ReO4- removal at NO3-:ReO4- = 500:1	>81%	—	—	Text Approximate	4-5 · 3.4. Anion competition studies · Fig. 3a
ReO4- removal at SO4(2-):ReO4- = 10000:1	98%	—	—	Text Exact Reported	4 · 3.4. Anion competition studies · Fig. 2d

Batch ReO4- sorption isotherm fitted with Langmuir model

ZJU-X6 powder/material for batch sorption · Powder

10 mg ZJU-X6 exposed to 10 mL ReO4- solution varied from 100 to 500 ppm; stirred 12 h, filtered, diluted in 5% nitric acid; Re by ICP-OES.

Atmosphere: aqueous solution
Context: pristine ZJU-X6 sorbing ReO4- surrogate
Measurement source: 2,4 · 2.5. Sorption isotherm experiment; 3.3. Sorption isotherm study · Fig. 2b; Fig. S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Langmuir fit correlation coefficient	>0.99	—	—	Text Approximate	4 · 3.3. Sorption isotherm study · Fig. 2b
ReO4- removal at 100-200 ppm initial concentration	>98%	—	—	Text Approximate	4 · 3.3. Sorption isotherm study · Fig. 2b
maximum ReO4- sorption capacityMarked as a best value within this paper	507 mg/g	—	—	Text Exact Reported	4 · 3.3. Sorption isotherm study · Fig. 2b; Fig. S6
theoretical ReO4- sorption capacity	523 mg/g	—	—	Text Exact Reported	4 · 3.3. Sorption isotherm study
context literature ReO4- capacity for DhaTGCl	437 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for LDHs	130.2 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for NDTB	49.4 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for PAF-1	420 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for Purolite A532E	446 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for SBN	786 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for SCU-100	541 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for SCU-101	271 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for SCU-102	291 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for SCU-COF-1	702.4 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for SCU-CPN-1	999 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for urea-MPN-3	55.2 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3
context literature ReO4- capacity for Yb3O(OH)6Cl	48.6 mg/g	—	—	SI Table Exact Reported	S8-S9 · 5. TcO4-/ReO4- uptake experiments · Table S3

Five-cycle ReO4- sorption/desorption and NaNO3 regeneration

ZJU-X6 powder/material for batch sorption · Powder

20 mg ZJU-X6 in 20 mL 30 ppm ReO4- solution for sorption; regenerated by washing with 3 M NaNO3 solution overnight; repeated for 5 cycles.

Atmosphere: aqueous ReO4- and NaNO3 solutions
Context: reusable ZJU-X6 sorbent
Measurement source: 3,5 · 2.8. Reversibility studies; 3.6. Recyclability investigation · Fig. 3c-d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
first-cycle ReO4- elution by 3 M NaNO3	83%	—	—	Text Exact Reported	5 · 3.6. Recyclability investigation · Fig. 3d
first-cycle ReO4- removal after 6 h	98%	—	—	Text Exact Reported	5 · 3.6. Recyclability investigation · Fig. 3c
fifth-cycle ReO4- elution by 3 M NaNO3	approximately 75% from Fig. 3d	—	—	Visual Estimate Approximate	5 · 3.6. Recyclability investigation · Fig. 3d
fifth-cycle ReO4- removal	approximately 93% from Fig. 3c	—	—	Visual Estimate Approximate	5 · 3.6. Recyclability investigation · Fig. 3c

Batch 99TcO4- exchange kinetics by UV-vis at 290 nm

UV-visible and optical absorption spectroscopy

ZJU-X6 powder/material for batch sorption · Powder

30 mg ZJU-X6 in 30 mL 30 ppm 99TcO4- aqueous solution, room temperature, solid-liquid ratio 1 g/L; aliquots at 3, 5, 10 and 20 min filtered by 0.22 um membrane.

Atmosphere: aqueous solution
Context: pristine ZJU-X6 sorbing 99TcO4-
Measurement source: 2-4 · 2.4. Exchange kinetics experiments; 3.2. Sorption kinetics · Fig. 2a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
99TcO4- sorption equilibrium time	20 min	—	—	Text Rounded Reported	3 · 3.2. Sorption kinetics · Fig. 2a
99TcO4- removal after 10 min	84%	—	—	Text Exact Reported	3 · 3.2. Sorption kinetics · Fig. 2a
99TcO4- removal after 3 min	49%	—	—	Text Exact Reported	3 · 3.2. Sorption kinetics · Fig. 2a