LAUSR

Abstract In this study, rod-shaped phillipsite was prepared using circulating fluidized bed fly ash by one-step synthesis and applied to adsorption of heavy metal Ni2+ ions for the first time. The X-ray diffraction and field emission scanning electron microscopy results suggested that rod-shaped phillipsite was composed of intergrown phillipsite crystals with cross-shaped pillar and size around 300–800 nm. EDS result showed that the Si/Al molar ratio of as-synthesized phillipsite was approximately equal to 1.4. The adsorption capacity and removal efficiency of Ni2+ over rod-shaped phillipsite were 10.06 mg/g and 89.56%, respectively, while the adsorption reaction followed pseudo-first-order kinetics.