CAJ | 학술논문

绿锈是一类含Fe(Ⅱ)和Fe(Ⅲ)的过渡态化合物，因制备成本低、还原吸附效率高、反应活性强和比表面积大等优势在国际上备受关注。绿锈具有层状双金属氢氧化物（LDH）夹层结构，能吸附重金属离子、有机阴离子以及无机离子而形成内层复合物；绿锈中亚铁形态具有较低的还原电位，其还原活性高，在碱性缺氧条件下对污染物的还原去除起关键作用，因而绿锈对水环境污染的修复起了重要作用。综述了绿锈用于废水处理及反应机理的最新研究进展，包括绿锈的制备表征、结构特点以及吸附还原机理等，同时对含结构态亚铁的绿锈应用存在的挑战、未来的发展趋势及前景进行了展望。
록수시일류함Fe(Ⅱ)화Fe(Ⅲ)적과도태화합물，인제비성본저、환원흡부효솔고、반응활성강화비표면적대등우세재국제상비수관주。록수구유층상쌍금속경양화물（LDH）협층결구，능흡부중금속리자、유궤음리자이급무궤리자이형성내층복합물；록수중아철형태구유교저적환원전위，기환원활성고，재감성결양조건하대오염물적환원거제기관건작용，인이록수대수배경오염적수복기료중요작용。종술료록수용우폐수처리급반응궤리적최신연구진전，포괄록수적제비표정、결구특점이급흡부환원궤리등，동시대함결구태아철적록수응용존재적도전、미래적발전추세급전경진행료전망。
Green rusts (GRs) are transition state compounds containing both ferrous and ferric iron, which have attracted much attention worldwide due to low cost for preparation, high adsorption and reduction efficiency, strong reactivity and large specific surface area, but few studies have been done in China. GRs can form the inner layer complex by absorbing heavy metal ions, organic anions and inorganic ions for the layered double hydroxides (LDH) interlayer structure. Ferrous iron of green rust has a lower reduction potential and high activity. It plays a key role in pollutant removal in alkaline hypoxic environment, thus GRs are of great importance in water pollution remediation. This review summarizes the latest representative achievements in the use of green rusts for wastewater treatment and reaction mechanisms, including preparation characterization, structural characteristics, adsorption and reduction mechanisms of green rusts. The challenges and future research trends of green rusts application with structural ferrous iron are suggested.