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)

作　　者：乔小壮 谢君泰 韩基玮 郭磊[1] QIAO Xiaozhuang;XIE Juntai;HAN Jiwei;GUO Lei(School of Chemistry and Materials Science,Ludong University,Yantai 264039,China;Sino-German Technical College,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[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

出　　处：《鲁东大学学报（自然科学版）》2024年第2期170-177,共8页Journal of Ludong University:Natural Science Edition

基　　金：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)。

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。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 polyamine 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 adsorption 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 

分 类 号：TB34[一般工业技术—材料科学与工程]