▎ 摘　　要

NOVELTY - Method for improving adsorption performance of adsorbent involves adjusting pH value of to-be-treated polluted water, then adding an adsorbent and an additive, stirring, absorbing at a constant temperature, then separating the adsorbent and additive. The adsorbent is molybdenum disulfide, boron nitride or graphene. The additive is N,N-dimethyl-9-decenamide, alkyl glycoside or alkanolamide. When the adsorbent is molybdenum disulfide, the pH of the to-be-treated polluted water is adjusted to 3-7. When the adsorbent is boron nitride or graphene, the pH of the to-be-treated polluted water is adjusted to 3-5. USE - Method for improving adsorption performance of adsorbent in wastewater treatment. ADVANTAGE - The method increases adsorption capacity of the adsorbent by 3-10 times, and the saturated adsorption capacity by 10-11 times, and reduces adsorption equilibrium time to one-quarter to one-half, and adsorption temperature.