fig3

Figure 3. (A) Potential adsorption process and adsorption mechanisms of NPs on Fe-modified biochar^[70], Copyright 2021, Elsevier; (B) Potential adsorption mechanisms of MPs on modified Mg/Zn biochar and the degradation of MP via thermal treatment^[51], Copyright 2021, Elsevier. NPs: Nano-plastics; MPs: microplastics.