污染物降解中纳米MnO_(x)作用特性的研究进展

Research progress on the characteristics of MnO_(x)nanoparticles in pollutant remediation

纳米MnO_(x)拥有诸如催化特性多样和造价便宜等优点,在污染物控制方向研究颇多。为了准确了解该方向目前的研究要点,和厘清其在污染物降解中的作用特性。在通过相关文献的收集和分类探讨后,得到的结论有,纳米MnO_(x)对挥发性有机物和染料这两大类典型有机污染物有良好降解性能。还对磺胺类抗生素、甲醛、臭氧、发射性金属、持久性有机污染物等有显著的降解能力。最后得到其对污染物的主要作用途径有:充当纳米酶,酶促污染物降解;充当催化剂,激活氧化剂或底物;充当氧化剂;充当光触媒;充当抗菌剂。

Nano MnO_(x)has many advantages such as various catalytic properties and low cost and has been widely studied in the aspect of pollutant control.To accurately understand the current research points in this direction and clarify its characteristics in the pollutant degradation,relevant literatures were collected,classified and thorougly reviewed.Some conclusions with reference significance were obtained.For example,nano MnO_(x)has a good degradation performance for volatile organic compounds and dyes.It also has a significant degradation ability for sulfonamide antibiotics,formaldehyde,ozone,emission metals,persistent organic pollutants,etc.Finally,the main reaction ways on pollutants are:acting as nanozymes,enzymatic degradation of pollutants;acting as a catalyst,activating O_(x)idant or substrate;acting as an O_(x)idant;serving as a photocatalyst;and acting as an antibacterial agent.