Iron (hydr)oxides were deposited on different carbonaceous materials carriers and their Fenton-like performance was critically evaluated. The solid carbon substrate significantly affected the crystal structure of the iron-containing phase. In particular, a layer of α-FeOOH was formed on the surface of hydrochar microsphere at pH = 6 and T = 60 °C without any additives for the synthesis conditions applied. Among the other obtained samples, the latter exhibited the highest catalytic activity, expressed either per gram of Fe metal or per total surface area basis, and the highest stability as well towards degradation of Orange II in the presence of H₂O₂. This is suggested to be due to the [email protected] structure of hydrochar [email protected]α-FeOOH and its favorable catalytic mechanism and kinetics as compared to previously reported FeOOH Fenton catalysts. H₂O₂ mainly reacted with photo-generated holes rather than Fe(II)/(III) and photo-generated electrons to produce superoxide radicals.

铁（氢）氧化物沉积在不同的碳质材料载体上，并严格评估了其类似Fenton的性能。固体碳基质显着影响了含铁相的晶体结构。特别是，在pH = 6和T = 60°C的炭氢微球表面上形成了一层α-FeO​​OH，没有任何添加剂可用于合成条件。在其他获得的样品中，后者表现出最高的催化活性（以每克Fe金属或以总表面积为基准表示），并且在H ₂ O ₂存在下对橘子II的降解具有最高的稳定性。。认为这是由于与先前报道的FeOOH Fenton催化剂相比，烃类[电子邮件保护]α-FeO​​OH的[电子邮件保护]结构及其有利的催化机理和动力学。H ₂ O ₂主要与光生空穴反应，而不是与Fe（II）/（III）和光生电子反应产生超氧自由基。