Hexametaphosphate-capped silica mesoporous nanoparticles containing CuII complexes for the selective and sensitive optical detection of hydrogen sulfide in water

CuII-macrocycle functionalized hexametaphos- phate-capped silica mesoporous nanoparticles have been prepared and used for the selective and sensitive detec- tion 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 environ- ments.