pH 对非均相芬顿及类芬顿反应中零价铁性能的影响：综述。
Effect of pH on Zero Valent Iron Performance in Heterogeneous Fenton and Fenton-Like Processes: A Review.
机构信息
Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor 46414356, Iran.
Department of Chemistry, University of Turin, Via Pietro Giuria 5, I-10125 Turin, Italy.
出版信息
Molecules. 2018 Nov 29;23(12):3127. doi: 10.3390/molecules23123127.
Heterogeneous Fenton processes with solid catalysts have gained much attention for water and wastewater treatment in recent years. In the field of solid catalysts, zero valent iron (ZVI) is among the most applicable due to its stability, activity, pollutant degradation properties and environmental friendliness. The main limitation in the use of ZVI in heterogeneous Fenton systems is due to its deactivation in neutral and alkaline conditions, and Fenton-like processes have been developed to overcome this difficulty. In this review, the effect of solution pH on the ZVI-Fenton performance is discussed. In addition, the pH trend of ZVI efficiency towards contaminants removal is also considered in oxic solutions (i.e., in the presence of dissolved O₂ but without H₂O₂), as well as in magnetic-field assisted Fenton, sono-Fenton, photo-Fenton and microwave-Fenton processes at different pH values. The comparison of the effect of pH on ZVI performance, taking into account both heterogeneous Fenton and different Fenton-like processes, can guide future studies for developing ZVI applications in water and wastewater treatment.
近年来，用于水和废水处理的多相芬顿工艺用固体催化剂受到了广泛关注。在固体催化剂领域，零价铁（ZVI）因其稳定性、活性、污染物降解性能和环境友好性而成为最适用的催化剂之一。在多相芬顿体系中使用 ZVI 的主要限制是其在中性和碱性条件下的失活，因此开发了类芬顿过程来克服这一困难。在本文综述中，讨论了溶液 pH 值对 ZVI-Fenton 性能的影响。此外，还考虑了在有氧溶液（即存在溶解氧但没有 H₂O₂）中，以及在不同 pH 值下的磁场辅助芬顿、声芬顿、光芬顿和微波芬顿过程中，ZVI 去除污染物效率的 pH 趋势。考虑到多相芬顿和不同的类芬顿过程，比较 pH 值对 ZVI 性能的影响，可以为未来开发 ZVI 在水和废水处理中的应用提供指导。
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