Using the size, the number per zeolite Y particle, and the average density of the TiO 2 particles (d 1.2 g cm- 3 ), we were able to estimate their amount on the surface of the zeolite.
(we; were; able to estimate their amount on the surface of the zeolite) (the number per zeolite Y particle, and the average density of the TiO 2 particles; to estimate; their amount; on the surface of the zeolite)
we the number per zeolite Y particle, and the average density of the TiO 2 particles
were to estimate
able to estimate their amount on the surface of the zeolite
their amount on the surface of the zeolite