Badea Silviu-Laurentiu, Niculescu Violeta-Carolina
National Research and Development Institute for Cryogenic and Isotopic Technologies-ICSI Ramnicu Valcea, 4th Uzinei Street, 240050 Ramnicu Valcea, Romania.
Materials (Basel). 2022 May 27;15(11):3850. doi: 10.3390/ma15113850.
Water covers about 70% of the Earth's surface, but the amount of freshwater available for human use is only 2.5% and, although it is continuously replenished via the water cycle, freshwater is a finite and limited resource. The Earth's water is affected by pollution and while water quality is an issue of global concern, the specific regulations on contaminants of emerging concern (CECs) are limited. In order to achieve the goals set by EU regulations, the treatment of wastewater is a scientifically and technologically challenging issue. Metal-organic frameworks (MOFs) are promising materials used for the removal of priority and emerging contaminants from wastewater, since they can mitigate those contaminants via both adsorption as well as catalysis processes. MOFs can offer selective adsorption of CECs by various adsorption mechanisms. The catalytic removal of priority and emerging organic contaminants from wastewater using MOFs implies Fenton, electro-Fenton, and photo-Fenton processes. Overall, MOFs can be considered as promising materials for the elimination of priority and emerging organic contaminants from various wastewater types, but the involved processes must be studied in detail for a larger number of compounds.
水覆盖了地球表面约70%的面积，但可供人类使用的淡水量仅为2.5%，而且尽管淡水通过水循环不断得到补充，但它是一种有限的资源。地球的水受到污染的影响，虽然水质是一个全球关注的问题，但针对新出现的关注污染物（CECs）的具体规定却很有限。为了实现欧盟法规设定的目标，废水处理是一个科学和技术上具有挑战性的问题。金属有机框架（MOFs）是用于从废水中去除优先污染物和新出现污染物的有前景的材料，因为它们可以通过吸附以及催化过程来减轻这些污染物。MOFs可以通过各种吸附机制对CECs进行选择性吸附。使用MOFs从废水中催化去除优先和新出现的有机污染物意味着芬顿、电芬顿和光芬顿过程。总体而言，MOFs可被视为从各种类型废水中去除优先和新出现有机污染物的有前景的材料，但对于大量化合物，必须详细研究其中涉及的过程。
