2-mercaptobenzimidazole functionalized Bi/Mg oxide and preparation method and application thereof

The invention belongs to the technical field of adsorption materials, and relates to a 2-mercaptobenzimidazole functionalized Bi/Mg oxide as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, precipitating bismuth salt and magnesium salt in water by adopting NaOH, then immediately adding ethylene glycol, preheating the system, and carrying out hydrothermal reaction to obtain Bi/Mg oxide; and dispersing the Bi/Mg oxide in water, uniformly mixing the Bi/Mg oxide with an ethanol solution of 2-mercaptobenzimidazole, and carrying out solvothermal reaction to obtain the 2-mercaptobenzimidazole functionalized Bi/Mg oxide. According to the structure of the 2-mercapto benzimidazole functionalized Bi/Mg oxide, the structural stability of adsorption at high temperature is improved, and rapid iodine capture and high iodine absorption capacity are realized. 本发明属于吸附材料技术领域，涉及2-巯基苯并咪唑功能化Bi/Mg氧化物及制备方法和应用。本发明首先采用NaOH将铋盐和镁盐于水中进行沉淀，而后立即加入乙二醇，体系预热后进行水热反应得到Bi/Mg氧化物；