高分子复合黄土吸附剂的制备及其吸附水体铅离子研究  

Preparation of polymer-loess adsorbent and research on the adsorption of lead ions in water

作　　者：曹军 陆毕帅 吕向菲[2,4] 刘魁 苑康泽 CAO Jun;LU Bishuai;L Xiangfei;LIU Kui;YUAN Kangze(Shaanxi Xixian New District Airport New City Development and Construction Group Limited,Xianyang 712000,China;School of Water and Environment,Chang’an University,Xi’an 710054,China;China DK Comprehensive Engineering Investigation and Design Research Institute Co.,Ltd.,Xi’an 710054,China;College of Geology Engineering and Geomatics,Chang’an University,Xi’an 710054,China;Department of Geology,Northwest University,Xi’an 710068,China;Shanghai SynTheAll Pharmaceutical Co.,Ltd.,Shanghai 200131,China)

机构地区：[1]陕西省西咸新区空港新城开发建设集团有限公司,陕西咸阳712000 [2]长安大学水利与环境学院,陕西西安710054 [3]信电综合勘察设计研究院有限公司,陕西西安710054 [4]长安大学地质工程与测绘学院,陕西西安710054 [5]西北大学地质学系,陕西西安710068 [6]上海合全药物研发有限公司,上海200131

出　　处：《应用化工》2025年第2期409-415,421,共8页Applied Chemical Industry

基　　金：陕西省重点研发计划(2023-YBNY-234);咸阳市重点研发计划项目(L2023-ZDYF-XCZX-009)。

摘　　要：为了利用黄土物化特性构筑高效的水体重金属吸附剂,结合黄土三维孔隙结构和基团的吸附特性,通过对苯乙烯磺酸钠和丙烯酰胺的聚合反应在黄土颗粒表面构筑对污染物有高效吸附或配位能力的磺酸基和酰胺基团,在不同条件下对水体铅离子吸附去除。结果表明,当吸附剂中黄土、对苯乙烯磺酸钠和丙烯酰胺的质量比为6∶2∶1时,聚合物在黄土表面形成聚合物薄膜并保证了黄土的孔隙结构,该吸附剂对水中Pb^(2+)的去除率可达96.66%。其对铅离子的最佳吸附条件为:溶液pH为5,吸附剂用量为0.1 g,初始铅离子浓度为50 mg/L,吸附时间120 min,吸附温度298~323 K。结果表明,该吸附剂既保留了黄土的孔隙结构,又在黄土颗粒表面构筑了对铅离子有配位作用的功能基团,从而实现水体铅离子的高效吸附。Combined the three-dimensional pore structure of loess and the adsorption characteristics of the groups,we constructed groups with efficient adsorption or coordination ability for pollutants on the surface of loess particles through polymerization reaction,so as to make them.The results showed that when the mass ratio of loess after coupling,sodium p-styrene sulfonate and acrylamide was 6∶2∶1,the polymer forms a film on the surface of loess particles and retained the pore structure of loess.The removal efficiency of Pb^(2+)in water by the adsorbent is up to 96.66%.The optimal adsorption conditions for lead ions was listed as follow:the pH of solution was 5,adsorbent dosage was 0.1 g,initial concentration of lead ion was 50 mg/L,adsorption time was 120 min,and the adsorption temperature was from^(2)98 K to 323 K.The adsorbent not only preserved the pore structure of loess,but also constructed functional groups on the surface of loess particles with coordination effect on lead ions,so as to achieve high efficiency adsorption of lead ions in water.

关 键 词：黄土吸附剂 高分子聚合反应 铅离子吸附 

分 类 号：TQ133.1[化学工程—无机化工] TQ319[建筑科学—建筑技术科学] TU521.3