What question did this study set out to answer?

The aim is to assess the performance of activated carbon derived from jellyfish biomass for water remediation.

April 22, 2026

Jellyfish‐Derived Activated Carbon: Synthesis, Characterization, and Adsorption Performance

Key Points

The aim is to assess the performance of activated carbon derived from jellyfish biomass for water remediation.
Chemically activated jellyfish biomass with KOH after pyrolysis to create adsorbents.
Conducted adsorption experiments for organic and metallic contaminants.
Analyzed adsorption kinetics and selectivity among contaminants.
Achieved BET surface area over 1000 m2 g−1, surpassing commercial activated carbons.
Demonstrated ≈30 wt% removal of methylene blue (MB) and ≈7 wt% removal of lead (Pb+2) contaminants.
Found that Pb adsorption capacity increased ≈1.7-fold compared to MB due to Pb–MB complexation.

Abstract

Activated carbon derived from jellyfish (JF) biomass offers a sustainable solution for water remediation, transforming invasive marine waste into high‐performance adsorbents. Here, said biomass is chemically activated with KOH after pyrolysis, yielding a material with a hierarchical porous structure (Brunauer–Emmett–Teller (BET) surface area of above 1000 m 2 g −1 ), surpassing commercial benchmarks, as confirmed by analyses. Adsorption experiments demonstrate rapid, high‐capacity removal of organic (methylene blue (MB), ≈30 wt%) and metallic (Pb + 2, ≈7 wt%) contaminants, outperforming commercial counterpart, with pseudosecond‐order kinetics indicating chemisorption dominance. Competitive adsorption experiments reveal Pb selectivity, suppressing MB uptake while boosting Pb capacity (≈1.7‐fold) which is attributed to lead–MB (Pb–MB) complexation. This first demonstration of chemically activated JF‐derived activated carbon establishes it as a superior, multifunctional adsorbent, addressing applications and enabling scalable waste valorization for pollutant removal.

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