Immobilized nanoparticles for oxidative and reductive water treatment

纳米颗粒零价铁（NZVI）用于污染物降解的效率和适用性尚未得到充分利用，因为它受到颗粒团聚和颗粒向环境排放的影响。一种方法是将NZVI固定在碳基膜上，这增加了材料的降解效率，并减少了应用后与纳米颗粒分离有关的问题。因此，该项目的主要目标是（1）生产碳基材料支持的NZVI，以及（2）在饮用水和环境水样相关条件下进行水溶液中氧化和/或还原污染物降解的基础研究，并通过考虑原始化合物的降解和转化产物的出现来评估它们。优化效率的参数是载体材料、纳米颗粒的生产和固定方法以及应用进一步电化学过程的可能性。使用坚固的载体材料的另一个重要方面是材料的再生或再利用的可能性，以实现材料用于污染物降解的未来应用的最大益处。

The efficiency and applicability of nanoparticulate zero valent iron (NZVI) for contaminant degradation have not been fully exploited since it is affected by particle agglomeration and emission of the particles to the environment. One approach is the immobilization of NZVI on carbon-based membranes which increases the degradation efficiency of the materials and reduces problems involved with nanoparticle separation after application. A major aim of this project is therefore (1) to produce NZVI supported on carbon-based materials, and (2) to perform fundamental studies of oxidative and/or reductive contaminant degradation in aqueous solutions under conditions relevant for drinking water and environmental water samples, and assess them by consideration of the degradation of the original compounds and the occurrence of transformation products. Parameters for the optimization of the efficiency are the support materials, methods of the production and immobilization of nanoparticles, and the possibility to apply further electrochemical processes. A further important aspect of using robust support materials is the possibility of regeneration or reuse of the materials to achieve the maximum benefit for future applications of the materials for contaminant degradation.