Synergistic CO2 Capture: NH2-Functionalized UiO-66 and DES-Choline-Chloride/Urea Impregnated Membranes
Bibliographic record
Abstract
Summary This research explores the development of mixed matrix membranes (MMMs) using NH2-functionalized UiO-66 and a novel deep eutectic solvent (DES) composed of choline chloride and urea for CO2 separation. DES, a promising alternative to ionic liquids, was synthesized and incorporated as a third component to mitigate filler agglomeration in the Pebax 1657 polymer matrix. The study investigated the effects of varying filler loadings (0–30 wt.%) on gas separation performance. Characterization via XRD, FTIR, and SEM confirmed successful synthesis and incorporation of MOFs and DES. The MMMs exhibited enhanced CO2 permeability and selectivity, particularly with NH2-UiO66-DES composites, showing selectivity increases of 53.4% for CO2/CH4 and 35.36% for CO2/N2. Additionally, the effects of temperature and CO2 concentration on separation performance were analyzed to assess the practical applicability of the membranes.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.006 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".