膦酸功能化纤维素的制备及其对Au(Ⅲ)的吸附富集性能
Preparation of Phosphonate-functionalized Cellulose and Its Adsorption Enrichment Properties for Au(Ⅲ)
乔小壮 1谢君泰 1韩基玮 2郭磊1
作者信息
- 1. 鲁东大学 化学与材料科学学院,山东烟台 264039
- 2. 青岛科技大学 中德科技学院,山东青岛 266061
- 折叠
摘要
为处理黄金冶炼工业产生的含金废水并实现其资源化利用,本研究通过多氨基多醚基甲叉膦酸与纤维素反应,设计合成了膦酸功能化纤维素(P-PC)吸附分离材料,利用红外光谱(FT-IR)、扫描电镜(SEM)对产物进行了表征分析.研究了 P-PC对水溶液中Au(Ⅲ)的吸附富集性能.吸附实验表明,P-PC对Au(Ⅲ)的吸附行为符合伪一阶和伪二阶动力学模型及Langmuir等温吸附模型.当pH值为1.0时,P-PC对Au(Ⅲ)的吸附性能最佳.经过3次吸附与解吸循环后,P-PC对Au(Ⅲ)的吸附量仍超过0.5 mmol·g-1.P-PC在吸附富集Au(Ⅲ)方面具有潜在的应用前景.
Abstract
In order to treat the gold-containing wastewater generated from the gold smelting industry and realize its resource utilization,phosphonic acid functionalized cellulose(P-PC)was prepared by the reaction of poly-amine polyether-based methyl phosphonic acid with cellulose.The characterization was carried out using infrared spectroscopy(FT-IR)and scanning electron microscopy(SEM).The results showed that P-PC was successfully prepared.The adsorption performance of Au(Ⅲ)on P-PC in solution was investigated.The experimental results showed that the adsorption of Au(Ⅲ)by P-PC conformed to the pseudo-first-order kinetic model,the pseudo-second-order kinetic model and Langmuir isothermal adsorption model.The adsorption performance of P-PC on Au(Ⅲ)was optimal when the pH was 1.0.The adsorption capacity was still 0.5 mmol·g-1 after three adsorp-tion and desorption cycles.P-PC has potential application in the adsorption of Au(Ⅲ).
关键词
多氨基多醚基甲叉膦酸/纤维素/金离子/吸附富集Key words
polyamine polyether-based methyl phosphonic acid/cellulose/gold ions/adsorption enrichment引用本文复制引用
基金项目
山东省自然科学基金面上项目(ZR2020MB133)
烟台市科技创新发展计划(2020XDRH99)
出版年
2024
NETL
NSTL
万方数据