Bacteria biochar adsorbent
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMazen Khaled NAZAL, Nabeel Saeed ABUZAID
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Abstract
A biochar-derived adsorbent preferably from Sargassum boveanum, macroalgae can be used for removing phenolic compounds, such as 2,4,6-trichlorophenol and 2,4-dimethylphenol, from aqueous solutions. The carbonization can improve the removal capability of the macroalgae adsorbent for such phenolic compounds with removal efficiencies of 60% or more from high salinity seawater and 100% from distilled water. The adsorption may occur through a mixed mechanism dominated by physisorption following pseudo second-order kinetics. The adsorption of the phenolic molecules may be spontaneous, endothermic and thermodynamically favorable.
Claims10
1-10. (canceled)
An adsorbent, comprising:
- a macroalgae char in an amount of at least 97.5 wt. %, relative to total adsorbent weight,
- wherein the char has a BET surface area in a range of from 3 to 5.5 m2/g.
An adsorbent, consisting essentially of at least one macroalgae char having:
- a BET surface area in a range of from 2 to 7.5 m2/g;
- a pore volume in a range of from 0.002 to 0.02 mL/g;
- and
- an average pore size in a range of from 2.5 to 25 Å.
19-20. (canceled)
Dependencies are inferred from the claim text.