The invention belongs to the field of functional materials and
environmental water treatment, and particularly relates to a production method of porous
biochar based on
typha orientalis derivation. The production method of the porous
biochar based on
typha orientalis derivation specifically comprises the following steps: (1) under a condition isolated from
oxygen, placing
typha orientalis
powder in a sealed container, elevating temperature to 400-500 DEG C, conducting
carbonization for 4 h, reducing the temperature to
room temperature, taking out an obtained product, washing the product with
hydrochloric acid and water until the product is neutral, and conducting
drying to obtain
biochar; and (2) mixing the biochar and
potassium carbonate according to a
mass ratio of (1 to 2) to (2 to 4),fully
grinding an obtained mixture, then placing a fully-ground mixture in a sealed container, under a condition isolated from
oxygen, elevating temperature to 850-950 DEG C, conducting activation for1.5-3 h, reducing the temperature to the
room temperature, taking out an obtained product, washing the product with
hydrochloric acid and water until the product is neutral, and conducting
drying toobtain the porous biochar. The porous biochar can efficiently adsorb
levofloxacin in a
water body in short time, fast removes the
levofloxacin in the
water body, benefits large-scale removal of the
levofloxacin, and has practical application values.