In recent days, the stifling team, a professor at the faculty of chemistry and chemistry of harbin industrial university and a member of the national focus laboratory on water resources and water environment in cities, inspired by the ice/water phase process, successfully produced a high-level polyamide filter using the “ice limit” interface. The study was published in science under the title " 3d accelerator polyamide filtering of 3d ionide " . The new generation of nanofiltrations has overcome the “permeability-selective” constraints of traditional polyamide filters and has unique advantages in the process of saline-containing wastewater recovery, water softening and purification, offering great applications that can help alleviate the global water shortage。
The distinctive characteristics of membrane separation technologies, which are efficient, low-carbon, energy-efficient and environmentally friendly, have become important technologies for alleviating the global water shortage, especially the nanofiltration film (sub) nanoacoustic, which represents advanced diaphragms and has received close attention from academia and industry in recent years. How can high performance filters with special structural characteristics be produced through industry-conventional traditional interfaces? After six years of constant research, the team has found that ice/water transformation processes can effectively control the spread of monomers in the “ic” phase of the restricted interface, thus regulating the monomer reaction of the interface, which can be further re-reacted through the previously formed lacuna/poreways of large-pore layers, creating a selection layer with unique physical characteristics. Through experimental and theoretical studies, the team confirmed the special role of the “ice limits” in the formation of polyamide functional layers during the synthesis of nanofilm interfaces and tested the three-dimensional quasi-layer wrinkle structure of the synthetic nanofilm and its ionation level。
Thesis is the sole communications unit of hajitsu, with prof. Shaolu as the sole communications author, and with prof. Zhang yanqiu zhang, associate professor, hajit university of chemistry and chemistry as the first author. The study was funded by the national fund for natural sciences, the original exploration fund of the goose team of heilongjiang province, the china postdoctoral science fund, and the national priority laboratory on urban water resources and water environment。
Liang ying xian, a reporter in harbin daily, wang tiejun
