We examined the impact of seawater constituents and dissolved oxygen (DO) on granular Pt/TiO₂ photocatalytic reactions producing hydrogen from water with glycerol as a sacrificial agent. Hydrogen production halved in seawater compared to pure water, mainly due to flocculation of the granules, and activity recovered by deflocculation and/or lowering the Na⁺ concentrations. The activity of the settled granular photocatalyst was higher than that of the suspended powder photocatalyst under anoxic conditions. The decrease in activity was small up to the DO value of pure oxygen bubbling, which shows the effective inhibition of oxygen reduction and thermal hydrogen oxidation.

我们检查了海水成分和溶解氧（DO）对颗粒Pt / TiO ₂光催化反应的影响，该反应以甘油为牺牲剂，从水中产生氢。与纯水相比，海水中的氢气产量减少了一半，这主要是由于颗粒的絮凝作用，以及通过反絮凝和/或降低Na ⁺浓度恢复了活性。在缺氧条件下，沉降的粒状光催化剂的活性高于悬浮的粉状光催化剂的活性。直至纯氧鼓泡的DO值，活性的降低很小，这表明有效抑制了氧还原和热氢氧化。