Pore-scale structure–activity mechanisms and spatiotemporal dynamics of Cu(II) adsorption on biochar revealed by in-situ 3D X-ray micro-CT

Key Points

• Cu(II) adsorption takes place on biochar at the pore-scale, revealing important mechanisms.
• Three-dimensional X-ray micro-CT imaging provides insights into the structure and dynamics of the adsorption process.
• Pore-scale insights enhance understanding of biochar's efficiency in removing heavy metals from water.
• Findings may lead to improved strategies for using biochar in environmental remediation efforts.