Macrocycle Self-Assembly Hydrogel for High-Efficient Oil-Water Separation.
Macrocycle Self-Assembly Hydrogel for High-Efficient Oil-Water Separation.
复制标题
用于高效油水分离的大环自组装水凝胶。
DOI：
10.1002/smll.202301934
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发表时间：
2023-06
期刊：
影响因子：
13.3
通讯作者：
Sheng-Hua Li;Bin-Bin Li-Bin;Xuemei Zhao;Huan-Bao Wu;Ruidong Chai;Guangzhao Li;Di Zhu;Guangrui He;Hai-Fu Zhang;K. Xie;B. Cheng;Qian Zhao
中科院分区：
文献类型：
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作者：
Sheng-Hua Li;Bin-Bin Li-Bin;Xuemei Zhao;Huan-Bao Wu;Ruidong Chai;Guangzhao Li;Di Zhu;Guangrui He;Hai-Fu Zhang;K. Xie;B. Cheng;Qian Zhao
近年来，大环超分子水凝胶得到了广泛的研究，但基于大环单体的超分子水凝胶的开发仍面临挑战。在这里，报道了具有低临界凝胶化浓度（0.05重量%）的灯笼[33]芳烃基水凝胶的构造，其可用于有效的油-水分离。灯笼[33]芳烃自组装成氢键有机纳米带，其插入缠结的纤维中形成水凝胶。该水凝胶具有可逆的pH响应特性，可通过原位溶胶-凝胶转化将其涂覆在不锈钢丝网上。所得丝网具有良好的油水分离效率（> 99%）和通量（> 6 × 104L m-2h-1）。这种灯笼[33]芳烃基水凝胶不仅进一步阐明了超分子水凝胶的凝胶化机制，而且还扩展了大环基水凝胶作为功能界面材料的应用。
Supramolecular hydrogels involved macrocycles have been explored widely in recent years, but it remains challenging to develop hydrogel based on solitary macrocycle with super gelation capability. Here, the construction of lantern[33 ]arene-based hydrogel with low critical gelation concentration (0.05 wt%), which can be used for efficient oil-water separation, is reported. The lantern[33 ]arenes self-assemble into hydrogen-bonded organic nanoribbons, which intertwine into entangled fibers to form hydrogel. This hydrogel which exhibits reversible pH-responsiveness characteristics can be coated on stainless-steel mesh by in situ sol-gel transformation. The resultant mesh exhibits excellent oil-water separation efficiency (>99%) and flux (>6 × 104 L m-2 h-1 ). This lantern[33 ]arene-based hydrogel not only sheds additional light on the gelation mechanisms for supramolecular hydrogels, but also extends the application of macrocycle-based hydrogels as functional interfacial materials.