光催化
光化学
共轭体系
电子受体
接受者
聚合物
结晶度
材料科学
联苯
降级(电信)
化学
芴
有机化学
催化作用
复合材料
物理
电信
计算机科学
凝聚态物理
作者
Zhen Li,Wei Zeng,Menghua Li,Junfeng Zheng,Xin Fang,Mei‐Jin Lin
标识
DOI:10.1002/marc.202100577
摘要
Photocatalysis is an efficient and green technology in the environmental protection. Due to the high charge separation and transfer, donor-acceptor (D-A) conjugated polymers attract much attention for their photocatalytic degradations towards organic pollutants. Herein, the authors reported three novel D-A conjugated polymers, named as HPBP, HPTP, and HPF, with heptazine moieties as electron acceptors, while biphenyl, terphenyl, or fluorene moieties as electron donors, respectively, which indeed exhibit a highly efficient photocatalytic degradation towards tetracyclines upon the visible-light irradiation. Among them, the photocatalytic performance of HPF is especially noticeable with the degradation rate up to 87% within 30 min, almost 11 times in comparison to those of pristine g-C3 N4 , which is mainly attributed to its high crystallinity and conjugation. For their photocatalytic mechanism, the •O2- radical anions are regarded as the active species.
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