Wet gringing of zeolite in stirred media mill

Mucsi, Gábor; Bohács, Katalin

doi:10.1088/1757-899x/123/1/012026

Cited by 2 publications

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“…Similar recrystallization after a milling process has also been reported for other frameworks [13]. The crystallinity of a zeolite is better maintained using wet ball milling [21]. Many types of mills are available.…”

Section: Introductionsupporting

confidence: 63%

Catalytic activation of all-silica COK-14 zeolite through alumination and particle size reduction using wet ball milling

et al. 2019

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Section: Introductionsupporting

confidence: 63%

Catalytic activation of all-silica COK-14 zeolite through alumination and particle size reduction using wet ball milling

et al. 2019

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“…The small size of nanozeolites offers a high homogeneity and integrity in the films and reduces the number of defects, such as cracks and pores [5]. The application of zeolite in nanometric size makes it possible to increase their surface area, leaving the Brønsted and Lewis active acid sites exposed, generating greater interaction of the molecules with active sites and decreasing the diffusion path lengths between the interstices of the zeolite framework [5,6]. Inside the natural zeolite framework, compensation cations, such as sodium, can be replaced by other metal cations.…”

Section: Introductionmentioning

confidence: 99%

Obtaining Nanoparticles of Chilean Natural Zeolite and its Ion Exchange with Copper Salt (Cu2+) for Antibacterial Applications

et al. 2019

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This article describes the production of nanoparticles of Chilean natural zeolite, using three size reduction methods: Ball mill, microgrinding, and microfluidization. Morphological characterization of samples indicated an average diameter of 37.2 ± 15.8 nm of the zeolite particles. The size reduction and chemical treatments did not affect the morphology or integrity of the zeolite. An increase of the zeolite samples’ Si/Al ratio was observed after the acid treatment and was confirmed by SEM-EDX analysis. Moreover, the effectiveness of the copper salt ion exchange (Cu2+) to the zeolite nanoparticles was analyzed by SEM-EDX. XRD analysis indicated that clinoptilolite and mordenite are the main phases of Chilean natural zeolite, and the crystalline structure was not affected by the modification processes. The FTIR characterization showed the presence of chemical bonds of copper with the zeolite nanoparticle framework. The ion-exchanged zeolite nanoparticles were evaluated for antibacterial behavior by the disc diffusion method. Additionally, the minimum inhibitory concentration and minimum bactericidal concentration were obtained. Microbiological assays with copper-exchanged nanozeolites showed an antimicrobial activity with a bactericidal effect against Escherichia coli and Staphylococcus aureus, which are the primary pathogens of food and are also resistant to multiple drugs. In this study, a new application for natural nanozeolites is demonstrated, as the incorporated copper ions (Cu2+) in nanozeolites registered a productive antibacterial activity.

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Wet gringing of zeolite in stirred media mill

Cited by 2 publications

References 1 publication

Catalytic activation of all-silica COK-14 zeolite through alumination and particle size reduction using wet ball milling

Catalytic activation of all-silica COK-14 zeolite through alumination and particle size reduction using wet ball milling

Obtaining Nanoparticles of Chilean Natural Zeolite and its Ion Exchange with Copper Salt (Cu2+) for Antibacterial Applications

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