▎ 摘　　要

NOVELTY - The preparation method of adsorbent material involves dispersing graphene oxide in deionized water, adding ( gamma )-cyclodextrin to form mixed solution, controlling the temperature of mixed solution, adjusting the pH value, adding hydrazine hydrate to reduce graphene oxide to obtain solid product, washing by water repeatedly, and centrifuging to obtain graphene/( gamma )-cyclodextrin composite material. USE - Preparation method of adsorbent material for removing methylene blue in water (claimed). ADVANTAGE - The method enables preparation of adsorbent material with high adsorption capacity of methylene blue in water. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for removal method of methylene blue in water, which involves adding graphene/( gamma )-cyclodextrin composite adsorbent material to solution containing methylene blue, where the adding amount of the solution per liter is 0.1-0.5 g, adjusting the pH value of the mixed solution to 1-10, placing in a constant temperature oscillator, controlling the temperature at 15-35 degrees C, oscillating for 12 hours, and filtering the residual liquid after absorption using filter.