Coconut husk-raw clay-Fe composite: preparation, characteristics and mechanisms of Congo red adsorption.

ABSTRACT: The release of unspent dyes from industries constitutes hazard and environmental challenges. For rapid and efficient removal of Congo red from aqueous solutions, a composite was prepared from coconut husk, raw clay, Fe(II) and Fe(II) compounds. Adsorption variables (initial pH of the solution, contact time, temperature and initial concentration of Congo red) were varied to understand the characteristics and mechanisms of the adsorption process. The composite was characterised using Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM)-Energy dispersive X-ray (EDX) spectroscopy, nitrogen adsorption-desorption isotherm, X-ray Diffraction (XRD) spectroscopy and pH of the point zero charge (pH_pzc). The optimal values of the pH, equilibrium time and tempe

SUBMITTER: Adebayo MA 

PROVIDER: S-EPMC9399237 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature