Cu or Fe-Exchanged Natural Clinoptilolite as Sustainable Light-Assisted Catalyst for Water Disinfection at Near Neutral pH

Natural zeolites can be used to obtain effective catalysts for heterogeneous photocatalytic reactions due to their low cost and favorable physicochemical properties for water treatment. In this work, a natural clinoptilolite is modified by incorporating iron (NZ-Fe) and copper (NZ-Cu) as compensation cations through ion exchange processes. Metals incorporation and structural stability are demonstrated through…

Biomimetic mineralization of calcium phosphate on a functionalized porous silicon carbide biomaterial

Porous biomorphic silicon carbide (bioSiC) is a structurally realistic, high-strength, and biocompatible material which is promising for application in load-bearing implants. The deposition of an osteoconductive coating is essential for further improvement of its integration with the surrounding tissue. A new strategy towards biomimetic calcium phosphate coatings on bioSiC is described. X-ray photoelectron spectroscopy (XPS)…