Composite material (PGPI) of polyimide (PI) modified by C.I. Pigment Green 8 (PG8) were prepared by solid-phase thermal polycondensation, impregnation and thermal treatment. The introduction of PG8 enhanced the π-π stacked crystalline structure and the visible light absorption of PI. The photo-Fenton synergistic system can effectively increase the decomposition efficiency of HO, accelerate Fe/Fe cycling and reduce the recombination of photogenerated carriers. The synergistic oxidative removal of TH (Tetracycline hydrochloride, 50 ppm) by PGPI after 40 min under visible-light irradiation was 95.1 %, which was significantly better than that of the photocatalysis alone (40.7 %) and the Fenton reaction alone (55.0 %).

中文翻译：

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CI颜料绿8改性的聚酰亚胺复合材料具有增强的晶体结构，可有效光芬顿氧化降解盐酸四环素

通过固相热缩聚、浸渍和热处理制备了CI颜料绿8（PG8）改性聚酰亚胺（PI）复合材料（PGPI）。 PG8的引入增强了PI的π-π堆叠晶体结构和可见光吸收。光-Fenton协同系统可以有效提高H2O的分解效率，加速Fe/Fe循环并减少光生载流子的复合。 PGPI在可见光照射下40 min后协同氧化去除TH（盐酸四环素，50 ppm）为95.1 %，明显优于单独光催化（40.7 %）和单独Fenton反应（55.0 %） 。