A sulfur, nitrogen dual-doped porous graphene nanohybrid for ultraselective Hg(<scp>ii</scp>) separation over Pb(<scp>ii</scp>) and Cu(<scp>ii</scp>)
Hua Tian, Jianrong Guo, Zili Pang, Minghua Hu, Junhui He
Abstract
) and high removal ability (>99%) within the entire pH range of 2-10 can be obtained. Given the specific 2D porous nanostructure and specific binding ligands, SNPG exhibits an ultrahigh separation factor towards Hg(ii) that is up to four orders of magnitude higher than those of Pb(ii), Cd(ii) and Cu(ii) ions, significantly higher than those of most reported adsorbents. These findings provide a new opportunity to develop selective materials and devices for applications such as efficient recognition, extraction and separation of target metal ions in complex aqueous environments.
Topics & Concepts
SulfurMaterials sciencePorosityChemical engineeringDopingDual (grammatical number)NitrogenNanotechnologyChemistryOrganic chemistryOptoelectronicsMetallurgyComposite materialArtEngineeringLiteratureExtraction and Separation ProcessesMetal-Organic Frameworks: Synthesis and ApplicationsGas Sensing Nanomaterials and Sensors