CAJ | 학술논문

采用改进的超声方法制备水溶性C60纳米颗粒( C60 NPs)，研究了超声水浴温度对C60 NPs尺寸和分散性的影响及C60 NPs的发光特性。结果表明，随着超声水浴温度的升高， C60 NPs颗粒尺寸减小，且分散性明显改善。热重分析( TGA)和红外光谱( IR)的测试结果表明，水和溶剂占C60 NPs总质量的57%。经过200℃加热处理后， C60 NPs尺寸明显缩减，得到了无溶剂残留的水溶性C60量子点。发光测试结果表明，不含溶剂和水的C60量子点发光明显增强，比C60 NPs的发光增强1个数量级。
채용개진적초성방법제비수용성C60납미과립( C60 NPs)，연구료초성수욕온도대C60 NPs척촌화분산성적영향급C60 NPs적발광특성。결과표명，수착초성수욕온도적승고， C60 NPs과립척촌감소，차분산성명현개선。열중분석( TGA)화홍외광보( IR)적측시결과표명，수화용제점C60 NPs총질량적57%。경과200℃가열처리후， C60 NPs척촌명현축감，득도료무용제잔류적수용성C60양자점。발광측시결과표명，불함용제화수적C60양자점발광명현증강，비C60 NPs적발광증강1개수량급。
C60 nanoparticles( C60 NPs) were prepared through a modified ultrasonic process. The effects of ul-trasonic bath temperature on the particle size and distribution of C60 NPs, as well as the photoluminescence spectroscopy( PL) property of C60 NPs were studied. The results show that as the ultrasonic bath temperature increase, the average particle size of C60 NPs decrease and the dispersibility of C60 NPs improve obviously. Thermogravimetric analysis( TGA) and infrared( IR) spectroscopy measurements indicate that water and sol-vent accounte for 57% of the total mass of C60 NPs. After heating at 200 ℃, the particle size of C60 NPs is sig-nificantly reduced, and subsequently the water soluble C60 quantum dots without solvent are obtained. The PL intensity from such water soluble C60 quantum dots is about one order of magnitude higher than that from the as-prepared C60 NPs.