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Mercaptopropyl groups were grafted onto the pore walls of mesoporous molecularsieves MCM-48. The pore structures were characterized by powder X-ray diffraction and N2adsorption analysis. Elemental analysis confirmed that the material with high organic moiety (2.2mmol/g) had been obtained. 13C MAS NMR verified the tethered organic groups. Thethiol-functionalized MCM-48 showed effective capture of mercury ions, and all of the organicligands were accessible for the binding of mercury ions.
Mercaptopropyl groups were grafted onto the pore walls of mesoporous molecularsieves MCM-48. The pore structures were characterized by powder X-ray diffraction and N2adsorption analysis. Elemental analysis confirmed that the material with high organic moiety (2.2 mmol / g) had been obtained. 13C MAS NMR verified the tethered organic groups. The thiol-functionalized MCM-48 showed effective capture of mercury ions, and all of the organic ligands were accessible for the binding of mercury ions.