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Bentonite based nanomaterials and composites

Institute of Chemistry, Technology and Metallurgy Center for Catalysis and Chemical Engineering. Bentonite based nanomaterials and composites. Aleksandra Milutinović-Nikolić, Ph . D ., Full Research Professor Zorica Mojović, Ph . D ., Associate Research Professor

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Bentonite based nanomaterials and composites

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  1. Institute of Chemistry, Technology and Metallurgy Center for Catalysis and Chemical Engineering Bentonite based nanomaterials and composites Aleksandra Milutinović-Nikolić, Ph.D., Full Research Professor Zorica Mojović, Ph.D., Associate Research Professor Predrag Banković, Ph.D., Associate Research Professor Nataša Jović-Jovičić, Ph.D., Assistant Research Professor Marija Žunić, master, Research Assistant  Dušan Jovanović, Ph.D., Full Research Professor

  2. Bentonite clays ▢Rocks formed from altered volcanic ashes. ▢Bentonite clays are rich in smectite minerals.

  3. Applications • ▢ENVIRONMENTAL PROTECTION • Na-enriched clays: adsorption of radioactive ions from water (Sr2+); • Organomodified clays: adsorption of toxic metals (Pb2+, Cd2+, Ni2+), radioactive ions (TcO4-), azo dyes; simultaneous adsorption of organic and inorganic pollutants • Pillared clays: catalytic degradation of phenol, toluene, and azo dyes; • ▢ELECTROCHEMICAL SENSORS • Organomodified and pillared clays: toluene, phenol detection. • ▢ GEOTEXTILE COMPOSITE • Geosynthetic clay liners. • ▢POROUS NANOCOMPOSITES • ▢ENZYMES IMMOBILIZATION • Na-enriched, organomodified and pillared clays: invertaze immobilization.

  4. Active carbons– recommended from US EPA for textile wastewater treatment. • Used two commercially active carbons: Vulcanand Kemika Environmental protection - adsorption AO10 AY 99 RB 5 2.0 HDTMA-B →more efficient for adsorption acid dyes than selected active carbons!!!

  5. Environmental protection - catalysis ▢ CWPO of tartrazine at 25 °C –the influence of Fe content ▢ CWPO of tartrazine on AlFe10 PILC – the influence of temperature

  6. Electrochemical sensors ▢phenol oxidation ▢toluene oxidation ▢tartrazine reduction ▢nitrite ions oxidation

  7. Commercial geotextile composite

  8. Synthesized geotextile composite

  9. Thank you for your attention

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