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| 磁性纳米金复合材料的合成及催化性能研究 |
| Study on the synthesis and catalysis performance of magnetic nano gold composites |
| 投稿时间：2024-08-20 |
| DOI： |
| 中文关键词: 纳米金 氧化石墨烯(GO) 四氧化三铁 催化 酸性橙II |
| 英文关键词: Au nanoparticles graphene oxide (GO) ferroferric oxide catalyze acid orange II |
| 基金项目:陕西省科技厅重点研发项目(2024GX-YBXM-318)；陕西理工大学研究生课程思政教改项目(SLGYKS2401)；陕西理工大学大创新项目(202410720020, SLGHX202404)；陕西理工大学教育科研项目(JYYJ2023-16)；陕西省汉中中学”十四五”规划课题(1450296) |
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| 中文摘要: |
| 以溶剂热法合成磁性的Fe3O4纳米颗粒，改进的Hummers法合成氧化石墨烯(GO)，氧化还原法合成纳米金。用超声将Fe3O4和GO结合，并用聚乙烯亚胺(PEI)负载纳米金，制备出具有三层结构的纳米材料Fe3O4/GO/Au。采用X射线衍射(XRD)、红外光谱(FTIR)、紫外可见分光光谱(UV-Vis)、透射电镜(TEM)和扫描电镜(SEM)对合成的材料进行表征。将制备的Fe3O4/GO/Au、Fe3O4/GO作为催化剂对比降解酸性橙II (AOII)。研究Fe3O4/GO/Au催化剂用量、酸性橙的浓度对AOII降解效果的影响。结果发现，Fe3O4/GO/Au对酸性橙具有良好的催化降解效果。该材料有望用于对食品、环境和工业中有机染料等污染物催化降解。 |
| 英文摘要: |
| Magnetic ferric oxide nanoparticles were synthesized by solvothermal method, graphene oxide (GO) was synthesized by modified Hummers method, and Au nanoparticles was prepared by chemical oxidation-reduction method. Then, Fe3O4 and GO were combined by ultrasound, and Au nanoparticles was loaded with the aid of polyethylenimide (PEI) to fabricate a three-layer structure of nanomaterial. The synthesized material was characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and ultraviolet-visible spectroscopy (UV-Vis), transmission electron microscopy (TEM) and scanning electron microscope (SEM). The obtained Fe3O4/GO/Au and Fe3O4/GO were employed as catalyst to compare degradation of AOII. The effects of different experimental conditions on the degradation rate were also discussed, including dosage of catalyst (Fe3O4/GO/Au) and concentration of AOII. The results showed that Fe3O4/GO/Au had a satisfactory catalytic effect on AOII. The material holds promise for the catalytic degradation of organic dyes and other pollutants in food, environment, and industrial applications. |
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