HAN Xiaogang *,CAI Jiangang,MU Jinxin,et al.Preparation of Modified Poly Aluminum Chloride Residue Adsorbent and Its Adsorption Performance for Nickel[J].Plating & Finishing,2022,(12):80-87.[doi:10.3969/j.issn.1001-3849.2022.12.011]
改性聚氯化铝残渣吸附剂制备及其对镍吸附性能
- Title:
- Preparation of Modified Poly Aluminum Chloride Residue Adsorbent and Its Adsorption Performance for Nickel
- Keywords:
- polyaluminum chloride ; residue ; adsorption ; nickel
- 分类号:
- X703
- 文献标志码:
- A
- 摘要:
- 采用聚氯化铝生产压滤残渣（ PACR ）制备吸附剂（ M-PACR ），对吸附剂的结构、形貌等进行表征，并考察该吸附剂对镍的吸附效果。结果表明，制备的吸附剂具有类水滑石的结构，与 PACR 相比，其表面变得疏松多孔，有明显的断层及裂痕。 BET 分析数据显示， M-PACR 较 PACR 比表面积增大了近 6 倍， FTIR 也表明 M-PACR 有效融合了 Ca-Al 和 Ca-Fe 型吸附剂的特征峰。吸附实验效果表明， M-PACR 吸附剂对镍的吸附符合二级吸附动力学模型与 Langmuir 吸附等温模型。
- Abstract:
- ： The adsorbent （ M-PACR ） was prepared by pressure filtration residue （ PACR ）， and the adsorption effect of the adsorbent on nickel was investigated. The results show that the prepared adsorbent has the structure of hydrotalcite like. Compared with PACR ， the surface of the adsorbent becomes loose and porous with obvious faults and cracks. BET analysis showed that the specific surface area of M-PACR was nearly 6 times larger than that of PACR. FTIR also showed that M-PACR effectively integrated the characteristic peaks of Ca-Al and Ca-Fe adsorbents. The results of adsorption experiments show that the adsorption of nickel on M-PACR adsorbent conforms to the second-order adsorption kinetic model and Langmuir adsorption isotherm model.
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备注/Memo
收稿日期： 2020-10-22 修回日期： 2020-11-14 作者简介： 韩晓刚（ 1983 —），男，高级工程师，主要从事危险废物资源化处置利用技术研究， email ： 237414866@qq.com 基金项目： 常州市科技支撑项目（ CE20195020 ）