Abstract

BHUSHAN TEWARI, Brij  and  GRANT, Tricia. Removal of 2-Nitrophenol, 2,4-Dinitrophenol and 2,4,6-Trinitrophenol from aqueous solution through adsorption on Cobalt, Nickel and tungsten ferrocyanides. Rev. Bol. Quim [online]. 2021, vol.38, n.4, pp.155-167. ISSN 0250-5460.  https://doi.org/10.34098/2078-3949.38.4.3.

Cobalt, nickel and tungsten ferrocyanides were synthesized and characterized by elemental and spectral studies. Removal of 2-nitrophenol, 2, 4-dinitrophenol and 2,4, 6-trinitrophenol from aqueous solution through adsorption on synthesized metal ferrocyanides were studied in the pH range 1.0 - 10.0 and at a temperature of 30 ± 1º C. The Langmuir type of adsorption is followed in the concentration range of 10-3 M to 10-4 M for 2-nitrophenol, 2,4-dinitrophenol and 2,4,6-trinitrophenol solutions. The 2,4,6-trinitrophenol and 2-nitrophenol were found to have maximum and minimum affinity with all three metal ferrocyanides studied. Nickel and tungsten ferrocyanides were found to have higher and lower adsorption capacity with all three substituted phenols.

Keywords : Removal; 2-Nitrophenol; 2,4-Dinitrophenol; 2,4,6-Trinitrophenol; Adsorption; Metal ferrocyanides.

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