近年来,绿锈(GR)在净水中的应用受到了极大的关注，但是它的充分理解还没有得到很好的实现。然后，对GR的合成和特性的理解可以高度支持它们在特定地点条件下的去污性能。这篇综述全面总结了综述，包括GR(Cl-)在内的GR的特性和性能，用于封存各种水性污染物的GR(CO32-)和GR(SO42-)(例如，四氯化物,Cr(VI),Se（VI），和U（VI），等。).一般来说,GR对污染物的不同反应性强烈依赖于GR的特性(例如，层间距离,比表面积,和Fe(II)含量)和溶液化学(例如，pH值,背景电解质，溶解氧,和污染物浓度，等。).此外,GRs与污染物的反应机理涉及氧化还原反应，吸附，催化氧化，夹层和八面体结合，它们可以在不同程度上相互或单独地促进净化。特别是,这篇综述讨论了在各种溶液化学条件下GRs的转化途径，并阐明了GRs的稳定性应该是实际应用的关键挑战。最后,提出了如何有效利用GRs进行水净化，这将大大有利于合理控制环境污染。
In recent years, the application of green rusts (GRs) for water purification has received significant attention, but its full understanding has not been well achieved. Then, the comprehension about the synthesis and characteristics of GRs can highly favor their decontamination performances for the site-specific conditions. This
review comprehensively summarized the synthesis, characteristics and performances of GRs including the GR (Cl-), GR (CO32-) and GR (SO42-) for sequestration of various aqueous pollutants (e.g., tetrachloride, Cr(VI), Se(VI), and U(VI), etc.). Generally, the different reactivity of GRs toward contaminants is strongly dependent on the GRs\' characteristics (e.g., interlayer distance, specific surface area, and Fe(II) content) and solution chemistry (e.g., pH, background electrolytes, dissolved oxygen, and contaminant concentration, etc.). In addition, the reaction mechanisms of GRs with the contaminants involve the redox reactions, adsorption, catalytic oxidation, interlayer and octahedral incorporation, which can mutually or singly contribute to the decontamination to varying degrees. Particularly, this
review addressed the transformation pathways of GRs under various solution chemistry conditions and clarified that the stability of GRs should be the key challenge for the real application. Finally, how to effectively use the GRs for water decontamination was proposed, which will significantly benefit the rational control of environmental pollution.
