Metallic 1T/1T' phase TMD nanosheets with enhanced chemisorption sites for ultrahigh-efficiency lead removal.

ABSTRACT: Two-dimensional (2D) materials, as adsorbents, have garnered great attention in removing heavy metal ions (HMIs) from drinking water due to their extensive exposed adsorption sites. Nevertheless, there remains a paucity of experimental research to remarkably unlock their adsorption capabilities and fully elucidate their adsorption mechanisms. In this work, exceptional lead ion (Pb²⁺) (a common HMI) removal capacity (up to 758 mg g^-1) is achieved using our synthesized metallic 1T/1T' phase 2D transition metal dichalcogenide (TMD, including MoS₂, WS₂, TaS₂, and TiS₂) nanosheets, which hold tremendous activated S chemisorption sites. The residual Pb²⁺ concentration can be reduced from 2 mg L^-1 to 2 μg L

SUBMITTER: Mei L 

PROVIDER: S-EPMC11442624 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature