Synthesis and efficiency comparison of reed straw-based biochar as a mesoporous adsorbent for ionic dyes removal.

ABSTRACT: The reed straw is assessed as a potential source of widely available renewable biomass for biochar production and compared with two other waste-based biomasses, namely fruit stones blend, and brewery spent grains. The biochars were activated via steam and CO₂. While steam activation yielded 12 % carbon from reed biomass, CO₂ activation resulted in biomass degradation. The characterization of reed biochar showed a mesoporous structure and a high surface area of 514 m²/g. The adsorption tests displayed a decent adsorption capacity of biochar, with values of 92.6 mg/g for methylene violet dye and 35.7 mg/g for acid green dye. Only 1 g/L dosage of reed biochar was able to remove 99 % of the 50 mg/L methylene violet solution in 15 min and 60 % of the 50 mg/L aci

SUBMITTER: Tomin O 

PROVIDER: S-EPMC10828687 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature