Abstract P-chlorophenol (P–CP) is a recalcitrant toxicant in wastewater. Recently, the use of composite materials and environmentally friendly technology in the degradation of pollutants in wastewater has attracted widespread attention. For the first time, the nano zerovalent iron nano zerovalent iron (NZVI)-loaded muscovite (NZVI@muscovite), a novel composite material, was synthesized by liquid-phase reduction. The different physicochemical properties of NZVI@muscovite indicated that the muscovite could support NZVI of 40–50 nm sizes. The NZVI@muscovite had a low agglomeration degree, good dispersibility, and improved catalytic activity. In addition, the optimization experiments of P–CP degradation demonstrated that NZVI@muscovite actively degraded P–CP at a pollutant:catalyst ratio of 714 mg:1 g. This ratio was higher than that of the other composite materials under optimal operating conditions. Adsorption and degradation by Fenton-like reaction were the main mechanisms underlying P–CP degradation. This study extended the use of NZVI@muscovite as an efficient composite material for the degradation of P–CP in an aqueous environment.

中文翻译：

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白云母负载纳米零价铁复合材料催化降解对氯苯酚：合成、表征和机理研究

摘要 对氯苯酚 (P-CP) 是废水中的难治性毒物。近年来，利用复合材料和环保技术降解废水中的污染物引起了广泛关注。首次通过液相还原合成了纳米零价铁纳米零价铁（NZVI）负载的白云母（NZVI@muscovite），一种新型复合材料。NZVI@muscovite 的不同理化性质表明，白云母可以支持 40-50 nm 大小的 NZVI。NZVI@muscovite 团聚度低，分散性好，催化活性提高。此外，P-CP 降解的优化实验表明 NZVI@muscovite 以 714 mg:1 g 的污染物：催化剂比例主动降解 P-CP。在最佳操作条件下，该比率高于其他复合材料。类芬顿反应的吸附和降解是 P-CP 降解的主要机制。该研究扩展了 NZVI@muscovite 作为一种高效复合材料在水性环境中降解 P-CP 的用途。