中文摘要：

将铁盐与铜盐在碱性条件下共沉淀后,经低温干燥制备了铁铜双金属氧化物。考察投加量、初始浓度、共存阴离子对铁铜双金属氧化物吸附Sb（Ⅲ）性能的影响,并对吸附动力学、等温吸附特征和热力学进行了系统的研究。结果表明：吸附在24 h后达到平衡,在p H为5.0,温度为25℃,0.03 g铁铜双金属氧化物对40 mg/L Sb（Ⅲ）的去除率为81.30%,去除能力达到108.41 mg/g。该吸附过程符合准二级动力学方程和Freundlich等温吸附模型,反应的吉布斯自由能ΔG〈0,为自发反应。机理分析表明铁铜双金属氧化物去除溶液中Sb（Ⅲ）主要以物理吸附为主,吸附剂经过4次吸附、解析再生后,对Sb（Ⅲ）去除效果不错。

英文摘要：

A Fe-Cu binary oxide was fabricated through simple co-precipitation process and dried at 80 ℃ for 24 h. Then it was used to remove Sb（Ⅲ） from aqueous solution, and the influences of dosage, initial concentration and reaction temperature were investigated through batch experiments. Adsorption isotherm models,thermodynamics models and kinetics models of the adsorption process were systematically studied. The results showed that the adsorption reached equilibrium after24 hours. When the p H was 5.0 and the reaction temperature was 25 ℃,81.30% of 40 mg/L Sb（Ⅲ） solution was removed by 0.03 g Fe-Cu binary oxide,and the adsorption capacity can reach 108.41 mg Sb（Ⅲ）/g Fe-Cu binary oxide. The removal of Sb（Ⅲ） by Fe-Cu binary oxide followed the Freundlich adsorption isotherm and the pseudo-second-order kinetics. Gibbs free energy was less than zero,indicating that the reaction process was spontaneous. Mechanism analysis confirmed that the adsorption was mainly attributed to physical adsorption. After four times adsorption and desorption experiments,the removal ability of iron-copper binary oxide was good.