微界面吸附过程是许多环境微界面反应的初始步骤或关键步骤。通过原位分析方法实时研究环境微界面吸附过程,可以获得更直接的界面反应信息和更可靠的反应机制证据,对于认识污染物在环境中分配转化和迁移传输规律有着重要意义。衰减全反射红外光谱技术由于其独特的采样原理、简便的制样方法和广泛的适应性,正逐渐成为研究微界面反应的一个有力工具。本文在简要介绍原位衰减全反射红外光谱技术原理的基础上,综述了其在环境微界面的吸附过程,尤其是矿物-水界面吸附过程中的应用,并探讨了其在环境微界面过程研究中的发展前景。
Interfacial adsorption process is the initial step or key step for most of environmental microinterface reactions.The online study of environmental micro-interfacial adsorption by in situ research methods provides direct information about interface reactions and reliable evidence for the detection of reaction mechanisms which are of great importance to understand the rule of transformation and distribution of pollutants in the environment.Because of its unique sampling principle,convenient sample pre-treatment and wide applicability,attenuated total reflection-Fourier transform infrared spectroscopy(ATR-FTIR) is becoming a powerful tool for investigating the interface reactions.Based on a brief introduction of the working principle of ATR-FTIR,the application of this technique in the investigation of adsorption on environmental interfaces,especially mineral-water interfaces,is summarized.Furthermore,the perspective of this method is discussed as well.