Zhang Mingpan, Wang Fuli, Shi Xinran, Wei Jing, Yan Weixia, Dong Yihang, Hu Huiqiang, Wei Kai
National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
Suzhou Best Color Nanotechnology Co., Ltd., Suzhou 215000, China.
Polymers (Basel). 2022 Aug 30;14(17):3584. doi: 10.3390/polym14173584.
In this study, an iron oxide/carbon nanofibers (FeO/CNFs) composite was prepared by a combination of electrospinning and hydrothermal methods. The characterization of FeO/CNFs was achieved via scanning electron microscopy (SEM), infrared spectroscopy (IR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). It is shown that when the hydrothermal reaction time was 180 °C and the reaction time was 1 h, the FeO nanoparticle size was about 90 nm with uniform distribution. The photodegradation performance applied to decolorize methyl orange (MO) was investigated by forming a heterogeneous Fenton catalytic system with hydrogen peroxide. The reaction conditions for the degradation of MO were optimized with the decolorization rate up to more than 99% within 1 h, which can decompose the dyes in water effectively. The degradation process of MO by Fenton oxidation was analyzed by a UV-visible NIR spectrophotometer, and the reaction mechanism was speculated as well.
在本研究中，通过静电纺丝和水热法相结合制备了一种氧化铁/碳纳米纤维（FeO/CNFs）复合材料。通过扫描电子显微镜（SEM）、红外光谱（IR）、X射线衍射（XRD）和X射线光电子能谱（XPS）对FeO/CNFs进行了表征。结果表明，当水热反应温度为180℃且反应时间为1 h时，FeO纳米颗粒尺寸约为90 nm，分布均匀。通过与过氧化氢形成非均相芬顿催化体系，研究了其对甲基橙（MO）进行光降解脱色的性能。优化了MO降解的反应条件，脱色率在1 h内高达99%以上，能够有效分解水中的染料。利用紫外-可见近红外分光光度计分析了芬顿氧化法降解MO的过程，并推测了反应机理。
