Method for preparing carbon coating magnetism halloysite adsorbent by utilizing humic acid and obtained product thereof

The invention belongs to sewage purification technology and a waste water treatment medicament for adsorbing heavy metal ions and organic dyes, and particularly relates to a method for preparing a carbon coating magnetism halloysite adsorbent by utilizing humic acid and an obtained product thereof. The method includes the following steps of: sequentially adding ferric chloride or ferric nitrate and halloysite clay to an ethanol polar solvent to form a dispersion liquid through stirring; adding solid powdery ammonium bicarbonate, continuously stirring to produce a reaction, and obtaining a FeOOH-halloysite mixture; well mixing the humic acid and the FeOOH-halloysite mixture through wet grinding; further calcinating the humic acid and FeOOH-halloysite mixture in an inert gas; and obtaining the carbon coating magnetism halloysite adsorbent composed of a Fe O -halloysite composite material. The method for preparing the carbon coating magnetism halloysite adsorbent by utilizing the humic acid has easily available