A novel fixed Z-scheme Ag|AgBr/Ag/TiO₂ photocatalyst composite film is prepared by continuous ion layer adsorption and sol-gel spin coating methods. Meanwhile, an immobilized reactor that can realize the separate collection of H₂ and CO₂ is also designed. The activity of the samples is evaluated through MG photocatalytic degradation with simultaneous hydrogen production. Some influence factors, AgBr film layer number, Ag foil thickness and TiO₂ film layer number, are investigated on the activity of fixed Z-scheme Ag|AgBr/Ag/TiO₂ photocatalyst composite film. The contribution of Ag SPR effect is also researched. The effects of irradiation time, MG concentration and used times are examined for searching optimum experiment conditions. A possible mechanism on MG photocatalytic degradation with simultaneous hydrogen production is proposed. It is wished that this work can provide a new idea in preparation of immobilized Z-scheme photocatalysts for efficiently degrading organic pollutants with simultaneous H₂ production.

通过连续的离子层吸附和溶胶-凝胶旋涂法制备了新颖的Z型固定式Ag | AgBr / Ag / TiO ₂光催化剂复合膜。同时，还设计了一种可以实现H ₂和CO ₂分离收集的固定化反应器。通过MG光催化降解并同时产生氢气来评估样品的活性。研究了固定化Z方案Ag | AgBr / Ag / TiO ₂活性的一些影响因素，包括AgBr膜层数，Ag箔厚度和TiO ₂膜层数。光催化剂复合膜。还研究了Ag SPR效应的贡献。检查辐照时间，MG浓度和使用时间的影响，以寻找最佳实验条件。提出了MG光催化降解同时产生氢的可能机理。希望这项工作能够为制备固定化的Z型光催化剂提供新的思路，以有效地降解有机污染物并同时生产H ₂。