Synthesis of activated carbon from olive seeds: investigating the yield, energy efciency, and dye removal capacity.
Agboola, Oluranti Okoli, Benjamin Sanni, Samuel E. Alaba, Peter Adeniyi Popoola, Patricia Sadiku, Emmanuel R. Mubiayi, Patrick M. Akinlabi, Esther Titilayo Makhatha, Mamookho Elizabeth
Agboola, Oluranti
Okoli, Benjamin
Sanni, Samuel E.
Alaba, Peter Adeniyi
Popoola, Patricia
Sadiku, Emmanuel R.
Mubiayi, Patrick M.
Akinlabi, Esther Titilayo
Makhatha, Mamookho Elizabeth
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Abstract
This study explored the synthesis of activated carbon from olive seeds by chemical and thermal activation, and evaluated the energy efficiency of the process. The oilseed samples were carbonized at varying temperature (600–840 °C).
The produced activated carbons were used for dye removal, studying the effect of temperature. The materials were analyzed using X-ray diffraction and scanning electron microscopy (SEM). The pores and interpore spacing porous of
the activated carbons were identified from the SEM images using ImageJ software. The results show that the yield of activated carbon and energy efficiency significantly decreased with increasing carbonization temperature. This reveals
that a higher yield of activated carbon and higher energy efficiency was attained at lower carbonization temperature, meaning that producing activated carbon from olive seed is cost effective. Moreover, the activated carbon obtained at
600 °C exhibits the optimum removal efficiency for methylene blue, however, the increase in the removal efficiency upon increasing the temperature from 600 to 720 °C is insignificant (about 1%).
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Date
2018-11-27
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MDPI
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Keywords
Activated carbon, Energy efciency, Olive seeds, Dye removal, Methylene blue