| 李大武＊,张江华,李燕红.化学通报,2023,86(11):1371-1375. |
| 棒状纳米氧化锆改性榛壳活性碳的制备及对碘海醇的吸附去除 |
| Nanocomposites of Rod-like Nano-zirconia and Hazelnut Shell Activated Carbon for Adsorptive Removal of Iohexol |
| 投稿时间：2023-05-05 修订日期：2023-05-21 |
| DOI： |
| 中文关键词: 纳米复合材料 诊断类药物 吸附去除 |
| 英文关键词:Nanocomposites Diagnostic Drug Adsorptive Removal |
| 基金项目: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)和公安部科技强警基础工作专项项目(2021JC07)资助 |
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| 中文摘要: |
| 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(ZrO2/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ZrO2/AC能在pH为3-10最有效的吸附碘海醇,40 min后达到吸附平衡；高温有利于ZrO2/AC吸附碘海醇；在20 ℃下,ZrO2/AC对碘海醇的吸附容量为180.2 mg/g；ZrO2/AC对碘海醇的吸附符合Langmuir和准二级动力学方程。 |
| 英文摘要: |
| 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 (ZrO2/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 ZrO2/AC for the adsorption of iohexol were studied. The results showed that the optimal pH ZrO2/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 ZrO2/AC. The adsorption capacity of iohexol by the ZrO2/AC was found to be 180.2 mg/g at 20 ℃. The adsorption of iohexol by the ZrO2/AC can be described well with Langmuir isotherm and the pseudo-second-order equation. |
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