1. (Radio)toxic metal ion adsorption by plant fibers 2. The Utilisation of Rubber (Hevea brasiliensis) Seed Shells as Adsorbent for Water Pollution Remediation 3. Biochar for the Removal of Methylene Blue from Aquatic Environment: A Review 4. Application of biochar to abate soil pollution 5. Biomass-Derived Adsorbents for Caffeine Removal From Aqueous 6. Carbonaceous materials - A prospective strategy for eco-friendly decontamination of wastewater 7. Production of carbon-based adsorbents from lignocellulosic biomass 8. Lignin and Lignin-Derived Products As Adsorbent Materials For Wastewater Treatment has been 9. Utilization of mussel shell to remediate soils polluted with heavy metals 10. Perspectives of the reuse of agricultural wastes from Rio Grande do Sul, Brazil, as new adsorbent materials 11. Polyvalent metal ion adsorption by chemically modified biochar fibers 12. Leucaena Leucocephala as biomass material for Heavy Metals and Metalloids removal 13. Sunflower-based materials for environmental application 14. A review of pine-based adsorbents for the adsorption of dyes 15. Utilisation of avocado (Persea americana) adsorbents for the elimination of pollutants from water: A review 16. Agro-wastes as precursors of biochar, a cleaner adsorbent to remove pollutants from aqueous 17. Biomass-derived renewable materials for sustainable chemical and environmental applications