Abstract A novel functional material, Zinc (II) tetra-[α-(p-amino)benzyloxyl]phthalocyanine (ZnPc) upon covalent integration with glycidoxypropyltrimethoxy silane modified TiO2 (GPTMS/TiO2) is prepared here for the first time in order to improve the visible photocatalytic activity of TiO2. The photocatalytic property of obtained ZnPc-GPTMS/TiO2 hybrid was investigated by carrying out the photodegradation of di-anionic azo dye Acid Black 1 (AB1) in aqueous solution under visible light irradiation. The results revealed that the ZnPc-GPTMS/TiO2 hybrid photocatalyst greatly enhanced the photodegradation efficiency compared to that of the pure TiO2. Particularly, 0.2 wt% ZnPc-GPTMS/TiO2 photocatalyst showed the highest photocatalytic activity with a degradation ratio of 95.4% of AB 1 after 120 min irradiation. The synergistic effect between ZnPc and TiO2 was responsible for the enhanced photocatalytic activity of the ZnPc-GPTMS/TiO2 hybrid, due to the efficient charge separation with electron injection from ZnPc to TiO2. The photocatalytic mechanism was proposed preliminarily.

中文翻译：

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化学改性氨基酞菁-GPTMS/TiO2协同光催化降解酸性黑1

摘要 这里首次制备了一种新型功能材料，四[α-(对氨基)苄氧基]酞菁锌(ZnPc)与环氧丙氧基丙基三甲氧基硅烷改性的TiO2(GPTMS/TiO2)共价结合，以提高性能。 TiO2 的可见光催化活性。通过在可见光照射下在水溶液中对双阴离子偶氮染料酸性黑 1 (AB1) 进行光降解，研究所得 ZnPc-GPTMS/TiO2 杂化物的光催化性能。结果表明，与纯 TiO2 相比，ZnPc-GPTMS/TiO2 杂化光催化剂大大提高了光降解效率。特别是，0.2 wt% ZnPc-GPTMS/TiO2 光催化剂表现出最高的光催化活性，120 分钟照射后 AB 1 的降解率为 95.4%。ZnPc 和 TiO2 之间的协同效应是 ZnPc-GPTMS/TiO2 杂化物光催化活性增强的原因，这是由于电子从 ZnPc 注入到 TiO2 的有效电荷分离。初步提出了光催化机理。