| 第一作者： | Lv, LL (Lv, Lili); Han, XS (Han, Xiangsheng); Mu, MH (Mu, Minghao); Wu, XC (Wu, Xiaochen); Li, CX (Li, Chaoxu); |
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| 联系作者： | Lv, LL (Lv, Lili); Han, XS (Han, Xiangsheng); Mu, MH (Mu, Minghao); Wu, XC (Wu, Xiaochen); Li, CX (Li, Chaoxu); |
| 发表年度： | 2021 |
| 卷： | 622 |
| 页： | - |
| 摘要： | Engineering metal-organic-frameworks (MOFs) into flexible hybrid membranes has been endeavored to entrap various molecules through a conventional filtration process. In most cases, both the rejection ratio and adsorption capacity may be limited by a low MOF loading amount, polymeric coating barrier, or large flow flux. It remains challenging to achieve the combination of large-capacity adsorption, high flux and large rejection ratio in an individual filtration setup. Herein through an in-situ templating synthesis, nanofibers of zeolitic imidazolate frame work-8 (ZIF-8) with the distinct diameters of similar to 20 nm and similar to 100 nm were produced by coating on aramid nanofibrils and silk microfibrils, respectively. With the super loading amount of ZIF-8 up to similar to 70 wt%, these fibrous nanohybrids enabled to produce spider-web-like membranes with both the high rejection ratio (>99%) and large flow flux (up to similar to 390 L m(-2) h(-1) bar(-1) at thickness of similar to 120 mu m). Their superior adsorption capacities for organic dyes also ensured the maintenance of high rejection ratios at high flow flux for large-volume filtration. Thus, the template of two types of nanofibrils may offer a facile method to design web-like MOF membranes with hierarchical microstructures and to intercept a large amount of specific molecules through a continuous "one pass" filtration process for practical applications. |
| 刊物名称： | JOURNAL OF MEMBRANE SCIENCE |
| 影响因子： | 7.015 |
| 全文链接： | https://www.sciencedirect.com/science/article/pii/S0376738821000028?via%3Dihub |
