Publication details

Effect of Milling Methods on Particulate Properties and Structure of Clinoptilolite


NGUYEN Vinh Dinh BUI Quy Minh KYNICKÝ Jindřich VŠIANSKÝ Dalibor

Year of publication 2020
Type Article in Periodical
Magazine / Source Crystal Research and Technology
MU Faculty or unit

Faculty of Science

Keywords ball milling; clinoptilolite; particle size; ultrasonic milling; vibro-milling
Description The effects of ultrasonic milling, dry and wet ball milling, and vibro-milling on the particulate properties, crystalline characteristics, morphology, and surface area of clinoptilolite (Cpt) have been investigated. Laser beam scattering technique, X-ray diffraction (XRD), scanning electron microscopy (SEM), and nitrogen adsorption/desorption at 77 K are used to characterize the initial and ground Cpt powders. Results show that Cpt particle size is significantly reduced by all carried out milling methods in which vibro-milling could produce particles with diameter less than 100 nm. The size distribution of Cpt is remarkably narrowed by using vibro- and wet ball milling. The crystallinity of Cpt noticeably decreases for the samples obtained by ball milling while vibro- and ultrasonic millings show a negligible effect on crystallinity. The specific surface area of Cpt is enhanced by all four milling methods.

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