Amorphous composite oxide-haloid composite adsorbent and preparation method thereof

The invention provides an amorphous composite oxide-haloid composite adsorbent which is characterized by comprising amorphous oxide and haloid. The amorphous composite oxide-haloid composite adsorbentreplaces silica gel to serve as an adsorbent, amorphous oxide and haloid are compounded, various dehumidification modes such as physical adsorption, chemical adsorption and solution absorption are fully utilized, the advantages of the various dehumidification modes are exerted, and the defects of the various dehumidification modes are overcome. The reasonable pore structure and acid property of the amorphous composite oxide can improve the deep dehumidification capability under low humidity (RH is less than 20%); the haloid has a remarkable effect of improving the adsorption capacity of medium and high humidity (RH is more than or equal to 40%); amorphous oxide and haloid are compounded, so that desorption energy consumption can be reduced, the desorption regeneration rate is increased, the dehumidification capac