Zhai Huajun, Qu Ruixiang, Li Xiangyu, Liu Yanan, Zhao Shuaiheng, Wei Yen, Feng Lin
Department of Chemistry, Tsinghua University, Beijing 100084, China.
ACS Appl Mater Interfaces. 2021 Oct 13;13(40):48171-48178. doi: 10.1021/acsami.1c10220. Epub 2021 Sep 28.
Shortage of freshwater and deterioration of the marine environment have a serious effect on the human body and ecological environment. Here, we demonstrated a facile way to prepare a multiple-target superwetting porous material to obtain available water without cumbersome steps. Through the facile immersion and hydrothermal method, a charge-enhanced membrane material combining superwettability, electrostatic interaction, and the steric effect is prepared. Such a material breaks through the limitations of single size sieving and has a universal effect on different kinds of contaminants with accurate wettability manipulation and fluid separation control. The protonation and deprotonation of active carboxyl groups at the novel created solid/liquid interface facilitate the surface wettability and flux transition, which will bring out superior continuous separation and surface lubrication control.
淡水短缺和海洋环境恶化对人体和生态环境产生严重影响。在此，我们展示了一种制备多目标超湿多孔材料的简便方法，无需繁琐步骤即可获取可用水。通过简便的浸泡和水热法，制备了一种兼具超润湿性、静电相互作用和空间位阻效应的电荷增强膜材料。这种材料突破了单一尺寸筛分的限制，通过精确的润湿性调控和流体分离控制，对不同种类的污染物具有普遍作用。新型固液界面处活性羧基的质子化和去质子化促进了表面润湿性和通量转变，从而实现卓越的连续分离和表面润滑控制。
