Robust and Large-Area Calix[4]pyrrole-Based Nanofilms Enabled by Air/DMSO Interfacial Self-Assembly-Confined Synthesis
| Autor: | Per M. Claesson, Xiangquan Liu, Yu Fang, Junxia Peng, Jinglun Yang, Jiaqi Tang, Rong Miao, Andra Dėdinaitė, Jianfei Liu, Xiaoyan Liu, Kaiqiang Liu |
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| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science 010401 analytical chemistry Forward osmosis Hydrazone Modular construction 010402 general chemistry 01 natural sciences 0104 chemical sciences Biofouling chemistry.chemical_compound Chemical engineering chemistry Permeability (electromagnetism) General Materials Science Self-assembly Layer (electronics) Pyrrole |
| Zdroj: | ACS applied materialsinterfaces. 13(2) |
| ISSN: | 1944-8252 |
| Popis: | The modular construction of defect-free nanofilms with a large area remains a challenge. Herein, we present a scalable strategy for the preparation of calix[4]pyrrole (C[4]P)-based nanofilms through acryl hydrazone reaction conducted in a tetrahydrazide calix[4]pyrrole (CPTH)-based self-assembled layer at the air/DMSO interface. With this strategy, robust, regenerable, and defect-free nanofilms with an exceptionally large area (∼750 cm2) were constructed. The thickness and permeability of the film systems can be fine-tuned by varying the precursor concentration or by changing another building block. A typical nanofilm (C[4]P-TFB, ∼67 nm) depicted high water flux (39.9 L m-2 h-1 under 1 M Na2SO4), narrow molecular weight cut-off value (∼200 Da), and promising antifouling properties in the forward osmosis (FO) process. In addition, the nanofilms are stable over a wide pH range and tolerable to different organic solvents. Interestingly, the introduction of C[4]P endowed the nanofilms with both outstanding mechanical properties and unique group-selective separation capability, laying the foundation for wastewater treatment and pharmaceutical concentration. |
| Databáze: | OpenAIRE |
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