甘草渣基吸水树脂的制备及吸附Cr^(6+)研究  

Study on Preparation of Glycyrrhiza Glabra Residue-Based Water-Absorbent Polymer and Adsorption of Cr^(6+)

作　　者：成铸 苑志龙 孙成坤 路安旭 苑杨一兰 冯国瑞 杨永启 闫友军[1] 高洪燕[1] Cheng Zhu;Yuan Zhilong;Sun Chengkun;Lu Anxu;Yuan Yangyilan;Feng Guorui;Yang Yongqi;Yan Youjun;Gao Hongyan(Shandong Engineering Laboratory for Clean Utilization of Chemical Resources,Weifang Key Laboratory of Green High Value Utilization of Agricultural Straw,Weifang University of Science and Technology,Weifang 262700,China;Department of Encephalopathy,Weifang Hospital of Traditional Chinese Medicine,Weifang 261041,China)

机构地区：[1]潍坊科技学院山东省化工资源清洁利用工程实验室潍坊市农业秸秆绿色高值化利用重点实验室,山东潍坊262700 [2]潍坊市中医医院脑病一科,山东潍坊261041

出　　处：《山东化工》2023年第23期32-36,共5页Shandong Chemical Industry

基　　金：山东省自然科学基金项目(ZR2020QB084);教育部高教司产学合作协同育人项目(220900524202937);潍坊科技学院高层次引进人才基金项目(KJRC2019009)。

摘　　要：首次以中药甘草废渣为原料,经化学改性后制备甘草渣羧甲基纤维素,然后与丙烯酰胺和丙烯酸双单体接枝共聚合制备吸水树脂,详细研究了各种单因素对合成的吸水树脂吸水性能的影响,得到最佳合成比例为m(羧甲基甘草渣)∶m(丙烯酸)∶m(丙烯酰胺)∶m(氢氧化钠)∶m(过硫酸钾)∶m(N,N'-亚甲基双丙烯酰胺)∶m(总去离子水)=1∶5.83∶1.17∶1.62∶0.032∶0.014∶24。对合成的吸水树脂进行了吸附Cr^(6+)动、静态吸附性能研究,讨论了不同吸附时间、树脂用量、离子浓度对树脂吸附Cr^(6+)的影响,并由扫描电镜及其能谱、透射线电镜验证了Cr^(6+)在树脂上的吸附分布情况。In this paper,for the first time,the carboxymethyl cellulose of licorice residue was prepared by chemical modification of licorice residue as raw material,and then grafted and co-polymerized with double monomers-acrylamide and acrylic acid to prepare water-absorbent polymer.The effects of various single factors on the absorbent properties of the synthesized water-absorbent polymer were investigated in detail,and the optimal synthesis mass ratio was obtained as m(carboxymethylglycyrrhiza residue)∶m(acrylic acid)∶m(acrylamide)∶m(sodium hydroxide)∶m(potassium persulfate)∶m(N,N'-methylenebisacrylamide)∶m(total deionized water)=1∶5.83∶1.17∶1.62∶0.032∶0.014∶24.The effect of different adsorption time,resin dosage and ion concentration on the adsorption of heavy metal ions Cr^(6+)was discussed,and the adsorption performance of Cr^(6+)was verified by scanning electron microscopy energy spectrum and transmission electron microscopy.

关 键 词：甘草渣 吸水树脂 吸附重金属 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]