In this study, a laminated nanocomposite of Y-Zr-Al with significantly high surface area of 256.6 m²/g was successfully prepared, and was used to investigate the defluoridation performance of sorbent based on Yttrium. The composite showed high fluoride sorption performance, especially at low F⁻ concentration conditions. SEM, BET, Elemental Mapping and XPS were used to characterize physicochemical properties of the composite in detail. Several influence factors including pH, presence of coexisting anions and contacting time were detailly investigated. The sorption course was studied by equilibrium sorption isotherm and sorption kinetics. Based on experimental results, a mechanism for fluoride sorption onto Y-Zr-Al composite was proposed, which revealed that there were three main sorption models, including mesoporous diffusion sorption, electronic interaction sorption and ion exchange, in the sorption course. The composite was considered to be highly potential in treating fluoride polluted waste water due to its high efficiency, high anti-interference ability and easy operation, and the discovery of fluoride highly attractive rare earth element was important to further understand and develop defluoridation sorbents based on rare earth.

在这项研究中，成功地制备了Y-Zr-Al纳米复合材料，该复合材料具有非常高的表面积256.6 m ² / g，并用于研究基于钇的吸附剂的脱氟性能。的复合体表明高氟吸附性能，特别是在低F ^-浓度的条件。SEM，BET，元素图谱和XPS用于详细表征复合材料的理化性质。详细研究了包括pH值，共存阴离子的存在和接触时间在内的几个影响因素。通过平衡吸附等温线研究吸附过程和吸附动力学。根据实验结果，提出了氟化物在Y-Zr-Al复合材料上的吸附机理，揭示了在吸附过程中存在三种主要的吸附模型，包括中孔扩散吸附，电子相互作用吸附和离子交换。该复合物效率高，抗干扰能力强，易于操作，被认为具有处理氟化物污染废水的高潜力，发现氟化物极具吸引力的稀土元素对于进一步了解和开发基于氟的脱氟吸附剂具有重要意义。稀土。