Oxidant-Induced High-Efficient Mussel-Inspired Modification on PVDF Membrane with Superhydrophilicity and Underwater Superoleophobicity Characteristics for Oil/Water Separation
Why this work is in the frame
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Bibliographic record
Abstract
In this work, a facile one-step approach was developed to modify hydrophobic polyvinylidene fluoride (PVDF) microfiltration membrane with superhydrophilicity and underwater superoleophobicity properties via a high-efficient deposition of polydopamine (PDA) coating oxidized by sodium periodate in a slightly acidic environment (pH = 5.0). In contrast to the traditional PDA coating on hydrophobic membranes autoxidized by O 2 in a weak basic buffer solution, the superhydrophilicity and ultrahigh pure water permeability (about 11 934 L m –2 h –1 under 0.038 MPa) of the PDA-decorated PVDF membrane are derived from optimized chemical oxidation without postmodifications or additional reactants. The as-prepared membrane exhibits excellent oil/water separation ability evaluated by water fluxes and oil rejection ratios of various oil/water mixtures and oil-in-water emulsions. Moreover, the outstanding antifouling performance and reusability of the PDA-modified PVDF membrane provide a long-term durability for many potential applications. The modified membrane also exhibits excellent chemical stability in harsh pH environments and mechanical stability for practical applications.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it