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General Chemistry ›› 2019, Vol. 5 ›› Issue (3): 190001-190001.DOI: 10.21127/yaoyigc20190001

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Natural Zeolites as Sustainable and Environmental Inorganic Resources over the History to Present

Eva Chmielewská*   

  1. Department of Environmental Ecology, Faculty of Natural Sciences, Comenius University,Ilkovičova 6, Mlynská dolina B2, 842 15 Bratislava, Slovakia
  • Received:2019-01-02 Online:2019-09-29 Published:2019-09-28
  • Contact: Eva Chmielewská, Email: chmielewska@uniba.sk (E. C.)

Abstract: Zeolites synthetic as well as natural, based on their beneficial properties and economic value, represent for a long time recognized industrial commodities. Natural zeolites are highly porous, hydrated aluminosilicates with a rigid crystalline structure and a network of interconnected tunnels and cages (such as honeycomb). Total pore volume of some natural zeolites reaches up to 35%. Their structures consist of a three dimensional framework, having a negatively charged lattice. The negative charge is balanced by cations, which are exchangeable with certain cations from aqueous or gaseous media. Based upon these facts and according to a new definition, zeolites are also clathrates or inclusion compounds, able to host various guest substances in their versatile structures and thus enhance their adsorption potential to broaden range of pollutants.


Key words: zeolites, alginate, surfactants, carbonization, clinoptilolite-rich tuff, ion exchange, surface functionalization

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