Investigation of hydrothermal process time on the size of carbon micro- and nano-spheres
- سال انتشار: 1396
- محل انتشار: مجله نانو ساختارهای اپتوالکترونیکال، دوره: 2، شماره: 2
- کد COI اختصاصی: JR_JOPN-2-2_006
- زبان مقاله: انگلیسی
- تعداد مشاهده: 95
نویسندگان
Department of Physics, Faculty of Basic Science, Tarbiat Modares University, Tehran, Iran.
Department of Physics, Faculty of Basic Science, Tarbiat Modares University, Tehran, Iran.
Department of Physics, Faculty of Basic Science, Tarbiat Modares University, Tehran, Iran.
چکیده
In this study, carbon nano-micro spheres with tightly controllable size, regularand perfect shape, high yields and narrow size distribution were prepared simply fromglucose and DI water as precursors using a hydrothermal method. By setting the initialconcentration of glucose solution and changing the hydrothermal process time at aconstant temperature of ۱۶۰ °C, carbon spheres with various sizes were synthesized in asealed autoclave. The relationship between the average carbon sphere size andhydrothermal process time has been discussed. By increasing the hydrothermal process timeat a constant temperature (۱۶۰ ° C) and a constant concentration of glucose solution (۰.۷۵ molar),carbon nano-micro spheres were obtained. The diameters of carbon nano-micro spheressynthesized in this study ranged from ۹۰ nm to ۴.۵ μm. The obtained carbon nano-microspheres were analyzed by different techniques including scanning electron microscopy(SEM), X-ray diffraction patterns (XRD), energy dispersive spectrometry (EDS) andRaman analysis. In addition, the existence of surface functional groups on carbonnano/micro spheres was characterized by Fourier transform infrared (FTIR)measurements.کلیدواژه ها
Carbon microspheres, Carbon nanospheres, Hydrothermal processاطلاعات بیشتر در مورد COI
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