Journalartikel

Jahr der Veröffentlichung: 2017

Seiten: 94-99

Zeitschrift: Journal of Environmental Management

Bandnummer: 192

ISSN: 1095-8630

DOI Link: https://doi.org/10.1016/j.jenvman.2017.01.055

Verlag: Elsevier

Abstract: 
Synergistically combined low-cost composites may be effective for the potential treatment of effluents containing organic pollutants. Hence, preparation of Carica-papaya-modified-kaolinite (CPK) and pine-cone-modified-kaolinite (PCK) composites via calcination of pure kaolinite (KAC), Carica-papaya and pine-cone seeds is demonstrated. The composites' specific surface areas were reduced by more than 57% but no structural modification in KAC lattice d-spacing, indicating impregnation of calcined biomass on clay surfaces and pores. However, composites' cation exchange capacities were enhanced over 4-fold, indicating higher potential for adsorption. Adsorption of 2,4,6-trichlorophenol on composites and KAC showed that CPK and PCK attained equilibrium relatively faster (30 min) compared to KAC (60 min). Modeling studies showed that 2,4,6-trichlorophenol removal mechanisms involved electrostatic interactions on sites of similar energy. Modification enhanced adsorption by 52 and 250% in PCK and CPK, respectively, and adsorption increased with temperature.

Harvard-Zitierstil: Olu-Owolabi, B., Alabi, A., Diagboya, P., Unuabonah, E. and Düring, R. (2017) Adsorptive removal of 2,4,6-trichlorophenol in aqueous solution using calcined kaolinite-biomass composites., Journal of Environmental Management, 192, pp. 94-99. https://doi.org/10.1016/j.jenvman.2017.01.055

APA-Zitierstil: Olu-Owolabi, B., Alabi, A., Diagboya, P., Unuabonah, E., & Düring, R. (2017). Adsorptive removal of 2,4,6-trichlorophenol in aqueous solution using calcined kaolinite-biomass composites.. Journal of Environmental Management. 192, 94-99. https://doi.org/10.1016/j.jenvman.2017.01.055