Sonochemical Removal of Highly Toxic Aqueous Cd2+ and Cr6+ Ions Using Dandelion-like Co3O4 Nanoflowers

Authors : Elif Aybike BERBEROĞLU, Mümin Mehmet KOÇ, Nurdan KURNAZ YETİM, Cemile ÖZCAN

Pages : 36-49

Doi:10.56171/ojn.1192105

View : 31 | Download : 13

Publication Date : 2023-06-30

Article Type : Research Paper

Abstract :In this work, cobaltinsert ignore into journalissuearticles values(II/III); oxide insert ignore into journalissuearticles values(Co3O4); nano/microflowers were practically synthesized in laboratory conditions. Adsorbence properties of the nanoflowers were investigated for the removal of cadmium and chromium heavy metal ions. To assess the chemical and morphological characteristics of Co3O4 nanoflowers, Fourier transform infrared spectroscopy insert ignore into journalissuearticles values(FTIR);, X-ray diffractometry insert ignore into journalissuearticles values(XRD);, field emission electron microscopy insert ignore into journalissuearticles values(FESEM);, Energy dispersive spectroscopy insert ignore into journalissuearticles values(EDS);, and was used. To determine the adsorbence mechanism in detail, eluent concentration, eluent type, solution pH, adsorbent amount, solution volume, and adsorption duration were studied. In these assessments, flame atomic absorption spectroscopy insert ignore into journalissuearticles values(FAAS); was used. For Cr6+, adsorption optimum parameters were determined as 3M HNO3, pH 6.5, 150mg, 30mL, 60min. For Cd2+, optimum parameters were determined as 3M HNO3, pH 6.0, 100mg, 10mL, 30min. Co3O4, nanoflowers are eco-friendly adsorbent materials for the adsorption of Cd6+ and Cd2+ heavy metal ions since the production method is affordable and practical.
Keywords : Co3O4 Nanoçiçekler, Katı faz ekstrasyonu, FAAS, Cr6, Cd2

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