【80 Catalysis Science & Technology】Efficient organic pollutant degradation under visible-light by functional polymers of intrinsic microporosity
writer：Qingquan Tang, Jiang Gong, Qiang Zhao
keywords：organic pollutant degradation
source：期刊
Issue time：2019年
Organic photocatalysts have recently drawn intense attention to wastewater treatment through the efficient utilization of solar energy. Rational design and synthesis of organic photocatalysts with facilitated charge-carriers transfer are crucial for achieving high-performance photodegradation of pollutants. In this work, functional polymers of intrinsic microporosity (PIMs) were synthesized by quaternization reaction, and the D-π-A and zwitterion structured polymers show the visible-light-driven catalytic activity for the degradation of organic pollutants. The formation of D-π-A structures in PIMs is demonstrated to extend visible-light absorption and promote charge-transfer transition. Besides, the zwitterion structures improve hydrophilicity and induce aggregations of polymer chains, facilitating the charge-carriers diffusion at the interfaces of polymers-water and polymers-polymers. The combination of these favorable features endows the resultant PIMs with high catalytic degradation ability of organic dyes under visible-light irradiation, which prevails over the state-of-the-art organic photocatalysts.