Herbal plant licorice ( Glycyrrhiza glabra ) root-activated carbon-based material for methyl violet and crystal violet dyes removal: thermochemical synthesis and experimental design optimization
Abstract
This study transformed solid waste from Glycyrrhiza glabra (licorice) roots into activated carbon (LIQ-AC) by a microwave-assisted chemical activation method utilizing phosphoric acid (H3PO4). The prepared LIQ-AC served as the adsorbent for cationic dyes (crystal violet; CV, and methyl violet; MV). The adsorption optimization was conducted using Response Surface Methodology with Box-Behnken Design (RSM-BBD) for the adsorption parameters (LIQ-AC dosage (0.02–0.1 g/100 mL, pH of 4–10, and contact time of 5–60 min, and 25 °C). The accuracy of the developed BBD model was confirmed by ANOVA analysis, with F-values of 138.27 for CV and 388.49 for MV, and corresponding p-values
Fields of Study & Subjects
Adsorption and biosorption for pollutant removal
Phosphorus and nutrient management
Layered Double Hydroxides Synthesis and Applications
Publication details
- Journal / source
- International Journal of Phytoremediation
- Publisher
- Informa UK Limited
- Volume
- 28
- Issue
- 8
- Pages
- 1556–1571
- Publication date
- 16 February 2026
- Language
- EN