Study on adsorption performance of 2,4,6-trichlorophenol from aqueous solution onto biochar derived from macroalgae as an efficient adsorbent

An efficient adsorbent was derived fromSargassum boveanummacroalgae (BCM) through a thermal pyrolysis process. It was characterized and investigated for the removal of 2,4,6-Trichlorophenol (TCP) from the aqueous solution. The effects of adsorbent mass, adsorbate concentration, and contact time were examined. The maximum removal efficiency and adsorption capacity were 100% and 175 mg g(-1,)respectively. The adsorption fitted Freundlich model and followed pseudo-second order kinetics. It was also found that the adsorption process was spontaneous, endothermic, and thermodynamically favorable. This study indicated that BCM adsorbent can remove 60% of TCP from the high saline seawater and it is reusable for three times.

Automated summary

The study showed that the efficient adsorbent derived from Sargassum boveanum macroalgae exhibited excellent removal efficiency and capacity for 2,4,6-Trichlorophenol from aqueous solution. The adsorption process followed the Freundlich model and pseudo-second order kinetics, and was found to be spontaneous and endothermic. The BCM adsorbent can remove 60% of TCP from high saline seawater and is reusable for three cycles.