δ-MnO_(2)在环境中的演化及其与金属离子的相互作用研究进展  

Evolution ofδ-MnO_(2)in Environment and Its Interaction with Metal Ions:A Review

作　　者：毕莉艳 李祖然 王磊[1] 湛方栋[1] 梁新然 李元[1] BI Liyan;LI Zuran;WANG Lei;ZHAN Fangdong;LIANG Xinran;LI Yuan(College of Resources and Environment,Yunnan Agricultural University,Kunming 650201,China;College of Horticulture and Landscape,Yunnan Agricultural University,Kunming 650201,China)

机构地区：[1]云南农业大学资源与环境学院,昆明650201 [2]云南农业大学园林园艺学院,昆明650201

出　　处：《土壤》2023年第5期935-942,共8页Soils

基　　金：云南省青年基金项目(A3032022149)资助。

摘　　要：水羟锰矿(δ-MnO_(2))作为土壤矿物和地球沉积物中的重要组成部分,因其对土壤中诸多金属离子具有超强富集作用而备受关注。富集了金属离子的δ-MnO_(2)在土壤环境中迁移转化,伴随金属元素二次污染风险。因此,探究δ-MnO_(2)转化过程及其与金属元素的相互作用规律势在必行。本文简要介绍了δ-MnO_(2)的性质,综述了δ-MnO_(2)的结构转化及其影响因素,δ-MnO_(2)与重金属离子之间的相互作用和氧化锰晶体生长机制,并对土壤中δ-MnO_(2)转化过程带来的金属元素二次污染防治研究重点和方向提出了展望。As an important part of soil minerals and earth sediments,vernadite(δ-MnO_(2))have attracted much attention because of its super-strong enrichment of many metal ions in soil.δ-MnO_(2)enriched metal ions migrate and transform in soil environment,with the risk of secondary pollution of metal elements.Therefore,it is imperative to exploreδ-MnO_(2)transformation process and their interaction with metal elements.This paper briefly introduces the properties ofδ-MnO_(2),reviews the structural transformation ofδ-MnO_(2)and their influential factors,the interaction ofδ-MnO_(2)with heavy metal ions and the growth mechanism of manganese oxide crystals,and finally puts forward the research focus and direction of the prevention and control of secondary pollution of metal elements in soil caused byδ-MnO_(2)transformation process.

关 键 词：氧化锰 结构转化 晶体生长 金属离子 

分 类 号：P571[天文地球—矿物学]