Then, 2.0 g/L of Fe (II)/Y or Fe (III)/Y catalysts were added into vessel separately and the mixtures were shaken on a stirring plate for 2 min to ensure a well dispersion of the catalyst particles.
Then, 2.0 g/L of Fe (II)/Y or Fe (III)/Y catalysts were addedinto vessel separately and the mixtures were shaken on a stirringplate for 2 min to ensure a well dispersion of the catalyst particles.