ABSTRACT

Significant attention has been paid to contaminants of emerging concern (CECs) for several years due to their persistence in water sources and toxicity. The necessity of upgrading current wastewater treatment technologies is vital to guarantee timely remediation of CECs, particularly given the scarcity of potable water for direct human consumption and even for agricultural irrigation. In this regard, the integration of transition metals onto porous adsorbent materials for use in water and wastewater treatment operations could play a significant role due to their ability to undergo specific interactions (i.e., complexation-type) with CECs at ambient temperature. Furthermore, coupling these interactions with hydrophobicity inducing species or phases in situ (i.e. hierarchically) further enhances affinity and capacity toward CECs. This review highlights the progress so far in the bench-scale design of transition metal-based nanoporous adsorbents, including hierarchical composites prepared via confined space synthesis, for the removal of CECs from water at ambient conditions.

摘要

由于它们在水源中的持久性和毒性，多年来已经对新兴关注的污染物（CEC）给予了极大的关注。升级现有废水处理技术的必要性对于确保及时纠正CEC至关重要，特别是考虑到人类直接饮用甚至用于农业灌溉的饮用水匮乏。在这方面，由于过渡金属在环境温度下与CEC发生特定的相互作用（即络合型）的能力，因此将过渡金属整合到用于水和废水处理操作的多孔吸附材料上可以发挥重要作用。此外，将这些相互作用与原位疏水性物质或相耦合（即分层）进一步增强了对CEC的亲和力和能力。这篇综述着重介绍了目前为止基于过渡金属的纳米多孔吸附剂（包括通过密闭空间合成制备的分级复合物，用于在环境条件下从水中去除CEC）的台式设计中的进展。