In this study, we demonstrate that the addition of ascorbate can lower the conversion percentage of H₂O₂ to O₂ from 71% to 11%, and thus increase the conversion percentage of H₂O₂ to OH from 11% to 82% on goethite within 3 h. This greatly enhanced production of OH could be attributed to the efficient Fe(III)/Fe(II) redox cycle accelerated by ascorbate, which produced abundant Fe(II) confined on the goethite surface, favoring the conversion of H₂O₂ to OH. Meanwhile, the decreased surface Fe(III) of goethite strongly inhibited the conversion of H₂O₂ to O₂. These findings can clarify the quantitative influence of ascorbate on the H₂O₂ decomposition process over the iron mineral surface, and thus deepen the understanding of heterogeneous Fenton reaction mechanism during organic containment treatment.

在这项研究中，我们表明，在加入抗坏血酸可以降低H的转化率₂ Ò ₂至O ₂从71％到11％，并因此增加H的转化率₂ Ò ₂至OH从11％至82％在3小时内用针铁矿 OH的大量提高可归因于抗坏血酸促进的有效Fe（III）/ Fe（II）氧化还原循环，从而产生了富集在针铁矿表面的Fe（II），有利于H ₂ O ₂向OH的转化。。同时，针铁矿表面Fe（III）的减少强烈抑制了H ₂ O ₂向O ₂的转化。。这些发现可以阐明抗坏血酸盐对铁矿物表面上H ₂ O ₂分解过程的定量影响，从而加深了对有机容器处理过程中非均相Fenton反应机理的认识。