Hexametaphosphate-Capped Silica Mesoporous Nanoparticles Containing Cu(II) Complexes for the Selective and Sensitive Optical Detection of Hydrogen Sulfide in Water.

Cu(II) -macrocycle functionalized hexametaphosphate-capped silica mesoporous nanoparticles have been prepared and used for the selective and sensitive detection of hydrogen sulfide in aqueous environments. The possibility of using different metal complexes combined with different capping anions and choice of different dyes or other sensing molecules as indicators makes this new protocol highly appealing for the preparation of new sensing systems for sulfide detection in different environments.