锰氧化物与环境中有机物的作用及其在环境修复中的应用

锰氧化物在陆地和海洋环境中含量丰富.作为天然强氧化剂之一,广泛地参与自然界中有机和无机化合物的氧化还原反应,锰氧化物通过吸附、氧化偶合或氧化分解等方式与多种有机物,如酚及取代酚、芳香胺、腐殖酸、氨基酸.甚至多环芳烃、多氯联苯、内分泌干扰物等相互作用,本文对锰氧化物与多种有机物的反应机理、影响锰氧化物对有机物吸附性能和反应活性的因素进行了综述.同时介绍了天然矿物锰氧化物、化学合成锰氧化物及生物氧化锰的特点及其在环境修复中的应用前景.

Review of reactions of manganese oxides with organic compounds and applications of MnOx in environmental remediation

Manganese (Mn) oxides are one of the most reactive oxides in nature. They play an important role in ocean and terrestrial environments through the adsorption and transformation of abundant organic and inorganic compounds due to their huge surface area and chemical activity. Here we review the mechanisms and parameters of reactions between manganese oxides and organic compounds, such as phenol, substituted phenols, aromatic amines, antibiotics, humic substances, aromatic acids, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and endocrine-disrupting compounds (EDCs). We also discuss the potential use of several types of manganese oxides from different origins (such as natural, chemically synthesized and biogenic Mn oxides) in the remediation of organic compounds in polluted environments.