This is the first study to compare the combination of different iron complexes (Fe³⁺-oxalate (FeOx), Fe³⁺-citrate (FeCit), Fe³⁺-nitrilotriacetic acid (Fe³⁺-NTA), Fe³⁺-ethylenediaminetetraacetic acid (Fe³⁺-EDTA) and Fe³⁺-ethylenediamine-N,N´-disuccinic acid (Fe³⁺-EDDS) with distinct oxidants (H₂O₂ and S₂O₈^2―) on the degradation of naproxen (NAP) via photo-Fenton. Experiments were performed in distilled water and in sewage treatment plant effluent and different Fe/organic ligand molar ratios, oxidant concentrations and radiation sources (black light and sunlight) were tested for each complex. Photo-Fenton at neutral pH was efficient for naproxen degradation in the presence of all iron complexes. Fe/ligand molar ratio was strongly affected by the ligand type, best results were obtained in the presence of Fe/EDDS (1:1) and Fe/NTA (1:1), Fe/EDTA (1:2), Fe/Cit (1:3) and Fe/Ox (1:12). Although NAP removal in water was faster in the presence of H₂O₂ (max20 kJ m^―2 required) when compared to S₂O₈^2― (max90 kJ m^―2 required), better performance of S₂O₈^2― was observed in sewage treatment plant effluent. Antimicrobial activity was only observed in the presence of FeEDDS, yet it was eliminated after treatment in the presence of S₂O₈^2―. A critical comparison in terms of operational and electrical energy costs indicates that using FeCit complex with H₂O₂ is the most cost-effective alternative in both matrices.

这是第一次研究不同铁络合物的Fe的组合（比较³⁺ -oxalate（的FeOx），铁³⁺柠檬酸（FeCit），铁³⁺次氮基三乙酸（铁³⁺ -NTA），铁³⁺ -乙二胺四乙酸（Fe ³⁺ -EDTA）和Fe ^3+-乙二胺-N，N′-二琥珀酸（Fe ³⁺ -EDDS），具有不同的氧化剂（H ₂ O ₂和S ₂ O ₈ ^2―）通过光芬顿降解萘普生（NAP）。在蒸馏水和污水处理厂废水中进行了实验，并对每种配合物测试了不同的铁/有机配体摩尔比，氧化剂浓度和辐射源（黑光和阳光）。在所有铁络合物存在下，中性pH下的光芬顿对萘普生的降解有效。Fe /配体摩尔比受配体类型的影响很大，在Fe / EDDS（1：1）和Fe / NTA（1：1），Fe / EDTA（1：2），Fe /引用（1：3）和Fe / Ox（1:12）。虽然NAP去除水呈较快在H存在₂ Ô ₂（千焦耳MAX20米^-2需要）相比至S时₂ ö ₈ ^2-（需要最大90 kJ m ^―2），在污水处理厂废水中观察到了更好的S ₂ O ₈ ^2―性能。仅在FeEDDS存在下才观察到抗菌活性，但在S ₂ O ₈ ^2―存在下处理后却被消除。关于运行和电能成本的关键比较表明，在两种基质中，将FeCit配合物与H ₂ O _{2一起使用}是最具成本效益的选择。