黄芪废渣磁性碳化吸附剂制备及其对水中四环素的吸附动力学研究  

Preparation of Magnetic Carbonization Adsorbent for Huangqi Waste Residue and Its Adsorption Kinetics for Tetracycline in Water

作　　者：王凯 赵丹 栾天 王琪 赵玥 隋丽丽[1] Wang Kai;Zhao Dan;Luan Tian;Wang Qi;Zhao Yue;Sui Lili(Shenyang Medical College,Liaoning,110034)

机构地区：[1]沈阳医学院,辽宁110034

出　　处：《当代化工研究》2024年第7期56-58,共3页Modern Chemical Research

基　　金：2019辽宁省教育厅科学研究一般项目“良好光催化性能的混相纳米TiO2光敏剂制备及其灭杀肿瘤细胞的基础研究”(项目编号:201902)。

摘　　要：以黄芪废渣和氯化铁混合物为原料,采用限氧热解法在700℃焙烧,制备黄芪废渣磁性碳化吸附剂(HC),研究其对四环素的吸附性能,考察的实验条件主要有四环素浓度、溶液pH、吸附剂用量、震荡时间。得出实验结论:在四环素溶液浓度140.0 mg/L、溶液pH5.6、黄芪废渣磁性碳化吸附剂的添加量2.5 g/L、震荡搅拌时间50 min时,吸附率最高可达94.1%,吸附量为52.696 mg/g。动力学分析实验结果表明黄芪废渣磁性碳化吸附剂(HC)对水中四环素的吸附过程与伪二级动力学模型更为一致。Using a mixture of Huangqi waste residue and ferric chloride as raw materials,a magnetic carbonization adsorbent(HC)for Huangqi waste residue was prepared by roasting at 700℃using oxygen limited pyrolysis method.The adsorption performance of HC on tetracycline was studied,and the experimental conditions investigated mainly included tetracycline concentration,solution pH,adsorbent dosage,and shaking time.The experimental conclusion is that when the concentration of tetracycline solution is 140.0 mg/L,the pH of the solution is 5.6,the addition amount of magnetic carbonization adsorbent for Huangqi waste residue is 2.5 g/L,and the stirring time is 50 minutes,the highest adsorption rate can reach 94.1%,and the adsorption amount is 52.696 mg/g.The experimental results of kinetic analysis indicate that the adsorption process of tetracycline in water by magnetic carbonization adsorbent(HC)from Huangqi waste residue is more consistent with the pseudo second-order kinetic model.

关 键 词：黄芪废渣 磁性碳化吸附剂 四环素 吸附动力学 

分 类 号：TQ424[化学工程] X703[环境科学与工程—环境工程]