摘要
碘海醇作为一种诊断类药物,具有持久污染性,已成为新兴污染物之一。本文采用热解法将棒状纳米氧化锆有效地沉积在榛壳活性炭上,制备了棒状纳米氧化锆改性榛壳活性碳复合材料(ZrO_(2)/AC),表征了其形貌和结构,研究了其吸附碘海醇的性能。结果表明,复合材料ZrO_(2)/AC能在pH为3~10时有效吸附碘海醇,40min后达到吸附平衡;高温有利于ZrO_(2)/AC吸附碘海醇;在20℃下,ZrO_(2)/AC对碘海醇的吸附容量为180.2mg/g;ZrO_(2)/AC对碘海醇的吸附符合Langmuir和准二级动力学方程。
Iohexol,as a diagnostic drug,has become one of emerging pollutants due to its persistent pollution.In this work,the rod-like nano-zirconia was effectively deposited on the surface of hazelnut shell activated carbon by pyrolysis method,for the preparation of nanocomposite(ZrO_(2)/AC)of rod-like nano-zirconia and hazelnut shell activated carbon.The morphology and structure of were characterized,and then the adsorption performances of the ZrO_(2)/AC for the adsorption of iohexol were studied.The results showed that the optimal pH ZrO_(2)/AC for adsorption of iohexol was in the range of 3-10,and the adsorption equilibrium could be reached within 40 min.High adsorptive temperature was favorable for adsorbing iohexol by the ZrO_(2)/AC.The adsorption capacity of iohexol by the ZrO_(2)/AC was found to be 180.2 mg/g at 20℃.The adsorption of iohexol by the ZrO_(2)/AC can be described well with Langmuir isotherm and the pseudo-second-order equation.
作者
李大武
张江华
李燕红
Li Dawu;Zhang Jianghua;Li Yanhong(College of Forensic Science,Criminal Investigation Police University of China,Shenyang,110854;School of Drug Control and Public Order,Criminal Investigation Police University of China,Shenyang,110854;College of Petrochemical Engineering,Liaoning Petrochemical University,Fushun,113001)
出处
《化学通报》
CAS
CSCD
北大核心
2023年第11期1371-1375,共5页
Chemistry
基金
痕迹检验鉴定技术公安部重点实验室(中国刑事警察学院)项目(HJ2023401KF)
公安部科技强警基础工作专项项目(2021JC07)资助。
