This collection focuses on the development and application of biochar, biobased adsorbents, and related materials for environmental remediation. It welcomes contributions that advance fundamental understanding and practical innovations in:

• Production and modification of biochar and biobased adsorbents, including activation and functionalization strategies.

• Adsorption mechanisms and performance for removing contaminants from water, soil, and industrial effluents.

• Pollutant-specific applications, such as heavy metals, dyes, pharmaceuticals, and emerging contaminants.

• Integrated treatment systems combining biochar with biological, chemical, or physical processes.

• Sustainability and scalability, including regeneration, lifecycle assessment, and cost-effectiveness of biobased materials.

• Environmental biotechnology approaches that link biochar and adsorbents to broader ecological and climate goals.

The scope emphasizes environmentally friendly, innovative, and interdisciplinary research that contributes to global challenges in clean water, pollution control, and sustainable resource management.