Lanthanum-modified biochar for the selective and efficient adsorption of ammonium nitrogen in wastewater
Biochar has been widely applied in wastewater treatment and agricultural applications; however, its practical utilization is limited by poor selectivity and insufficient adsorption capacity. In this study, La2O3-modified biochars were prepared from rapeseed straw (RS), corn straw (BC), rice husk (RH), and cotton stalk...