Simultaneous removal of ammonium, phosphate, and phenol via self-assembled biochar composites CBCZrOFe 3 O 4 and its utilization as soil acidity amelioration

High concentrations of ammonium, phosphate, and phenol are recognized as water pollutants that contribute to the degradation of soil acidity. In contrast, small quantities of these nutrients are essential for soil nutrient cycling and plant growth. Here, we reported composite materials comprising biochar, chitosan, ZrO, and Fe