Antimony has been listed as a critical pollutant in many countries because of its toxic effects on earth organisms. In this study, titanate nanosheets (TNS) were prepared with a high specific surface area by alkaline hydrothermal method. The adsorption mechanism and adsorption capacity of removing Sb(III) from aqueous solutions with TNS as an adsorbent were investigated for the first time. The FTIR and XPS analysis indicated that the interlayer sodium ions of TNS were responsible for Sb(III) adsorption. The batch experiments were conducted on solution pH, adsorbent dosage, initial concentration and reaction time. The results exhibited that when pH was 2, the removal rate was about 90% with the dosage of TNS was 0.1 g/L. The adsorption reaction was exceedingly rapid in the initial 5 min, and then the reaction was in equilibrium after about 30 min. The experimental data were better fitted with Langmuir isotherm model, and the maximum adsorption amount could attain 232.56 mg/g. The experiments showed that TNS had outstanding anti-interference performance to common cations. Therefore, TNS were considered to be an excellent material for removing Sb(III) from aqueous solutions.

由于锑对地球生物的毒性作用，它已被列为关键污染物。在这项研究中，通过碱水热法制备了具有高比表面积的钛酸酯纳米片（TNS）。首次研究了以TNS为吸附剂从水溶液中去除Sb（III）的吸附机理和吸附能力。FTIR和XPS分析表明，TNS的层间钠离子负责Sb（III）的吸附。在溶液pH，吸附剂剂量，初始浓度和反应时间上进行批量实验。结果表明，当pH为2时，TNS用量为0.1 g / L时，去除率约为90％。在最初的5分钟内，吸附反应非常快，然后在大约30分钟后，反应达到平衡。实验数据与Langmuir等温线模型拟合较好，最大吸附量可达232.56 mg / g。实验表明，TNS对普通阳离子具有优异的抗干扰性能。因此，TNS被认为是从水溶液中去除Sb（III）的极好材料。