| 吴振宇,王仲文,王云.酰胺功能化石墨烯纳米带对铀的吸附性能研究[J].中华放射医学与防护杂志,2020,40(4):308-314.Wu Zhenyu,Wang Zhongwen,Wang Yun.Uranium adsorption on amide functionalized graphene oxide nanoribbons[J].Chin J Radiol Med Prot,2020,40(4):308-314 |
| 酰胺功能化石墨烯纳米带对铀的吸附性能研究 |
| Uranium adsorption on amide functionalized graphene oxide nanoribbons |
| 投稿时间：2020-01-09 |
| DOI：10.3760/cma.j.issn.0254-5098.2020.04.011 |
| 中文关键词: 氧化石墨烯纳米带 酰胺 铀 吸附 |
| 英文关键词:Graphene oxide nanoribbons Amide group Uranium Adsorption |
| 基金项目:江西省卫健委科技计划项目（20203878） |
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| 中文摘要: |
| 目的 制备酰胺功能化石墨烯纳米带（GONRs-AM）并研究其对铀的吸附性能。方法 对所制得的GONRs-AM进行扫描电镜（SEM）和傅里叶红外光谱（FT-IR）表征，并通过批处理吸附实验考察了溶液pH、吸附剂用量、吸附时间、铀初始浓度、温度和离子强度等因素对GONRs-AM吸附铀的影响。结果 GONRs-AM对铀的最大吸附容量为294.5 mg/g，该吸附过程是受pH影响的，自发的放热过程，并符合准二级动力学模型和Langmuir模型。结论 GONRs-AM对铀的吸附性能较好，可用于放射性废水中吸附分离铀。 |
| 英文摘要: |
| Objective To synthesize amide functionalized graphene oxide nanoribbons (GONRs-AM) and investigate their adsorption performance for uranium. Methods Characterization of the synthesized GONRs-AM was made by using scanning electron microscopy (SEM) and Fourier infrared spectroscopy (FT-IR). The effects of solution pH, adsorbent dosage, adsorption time, initial uranium concentration, temperature and ionic strength on the uranium adsorption on GONRs-AM were investigated by using batch adsorption experiments. Results The maximum adsorption capacity of GONRs-AM for uranium was 294.5 mg/g, and the adsorption process was a spontaneous exothermic process influenced by pH, which was consistent with the quasi-second-order kinetic model and the Langmuir model. Conclusions As an adsorbent, GONRs-AM can effectively adsorb uranium from aqueous solution and can be used to separate uranium from radioactive wastewater. |
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