in order to bind catalytic active (CuO-precursor-doped) zeolith onto the surface of ceramic fibers, the impragnated fibers were calcinated at 500°C. However the ceramic fibers become brittle after the sintering process. The Zeolith particles were not firmly bound to the surface of the fiber. After washing in destilled water for 4 hours the zeolith particles were almost completely washed away.
From the abovementioned test it was concluded that the temperature required for a successful sintering is higher than 500°C but it will alter the internal structure of the ceramic fibers and make it brittle.
Is there a way to optimise the sintering process so that the zeolith particles can be bound firmly to the fiber surface without damaging the fiber itself? Is there an alternative to sintering to bind the zeolith particles onto ceramic fibers?
Functionalization of ceramic fibers by attaching the functional groups may improve upon the adhesive tendency of the surface of the fibers and zeolite particles May remain in place by chemisorption for longer duration of time even after washing with water or so.
We succeeded in deposition of zeolite nanoparticles onto porous silica monolith (Surface Innovations 2016 4:2, 88-101). We used cationic polyelectrolyte and functionalised the monolith, then added a suspension of zeolites. They were adsorbed firmly and created a nice monolayer.
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Inorganic Materials
- Ceramics