环境纳米污染物与微界面水质过程

Environmental Nano-Pollutants (ENP) and their micro-interfacial processes on the aquatic particles

提出了环境纳米污染物的分类概念 .环境中对生态和人体有危害的污染物大多处于纳米级尺度 ,并因此而具有许多与污染行为有关的特征 .它们在微界面上的强烈吸附及各种反应就是突出的表现 .文中讨论了它们特殊的共同特征和环境微界面上的行为 ,举出其形态分布、光化学降解、生物膜作用、污染控制技术等方面的例子加以阐述 .纳米污染物界面形貌的观测是近代仪器的重要发展 .纳米污染物与微界面的相互作用构成它们环境污染效应的核心机理 。

It has been found that the most of the pollutants which harmed to harmful to ecological system and human health are in the size of order of nanometer. Thus, an environmental Nano-Pollutant (ENP) is suggested in this paper as a new concept of categorization for pollutants. Just the size and other special characteristics contributed them to impose many significant the prominent characteristics of nano-pollutants in common and outstanding behaviors on the environmental micro-interface are discussed. Several examples as chemical species distribution, photochemical degradation, attacks to biological cell membrane and pollution control technologies are described concisely. The observation and identification of the morphology and performance for the nano-compounds on the surface are the challenges to advanced instruments. The mechanism and model of the interaction between ENP and micro-interface attracte recently the investigation in the fields of environmental science and technology.