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以细菌纤维素为原料载体,硼氢化钾为还原剂,采用水热还原法制得载钯细菌纤维素纳米纤维(Pd/BCF)。通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、原子力显微镜(AFM)、X射线衍射(XRD)、能量色散X射线分析(EDX)、傅里叶变换红外光谱学(FT-IR)和热重分析仪(TGA)表征手段,研究了载钯细菌纤维素纳米纤维材料的微观形态、结晶度、组成成分以及热稳定性,均达到了相对理想的效果。反应3h后,钯纳米颗粒(PdNPs)在纤维上均匀分布,粒径约55nm。纳米纤维上Pd单质载量约19.40%,且Pd/BCF材料热稳定性较高,能承受250℃的高温。
Bacterial cellulose as raw material carrier and potassium borohydride as reducing agent were used to prepare palladium / bacterial cellulose nanofibers (Pd / BCF) by hydrothermal reduction. The microstructure and mechanical properties were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX), Fourier transform infrared spectroscopy Thermogravimetry (TGA) characterization was used to investigate the microscopic morphology, crystallinity, composition and thermal stability of palladium-loaded bacterial cellulose nanofibers. After 3 hours of reaction, palladium nanoparticles (PdNPs) were uniformly distributed on the fibers with a particle size of about 55 nm. The Pd loading on the nanofibers is about 19.40%, and the Pd / BCF material has higher thermal stability and can withstand the high temperature of 250 ℃.