| Summary: | 碩士 === 國立成功大學 === 化學工程學系 === 102 === In order to use lignocellulose of plant effectively rather than increasing carbon dioxide gas emissions by incineration.In the study, agricultural wastes were used for fabricating nano silicon carbide through carbothermal reduction method .The surface morphologies of nano silicon carbide materials were characterized by scanning electron microscopy (SEM), the results show that there are many flaky and linear part,further through X-ray diffraction (XRD) ,the results indicate successfully synthesis of silicon carbide. Moreover, extra Fumed silica could be added to increase the yield of nano silicon carbide,the study concluded that adding 10wt.% Fumed silica has the highest conversion rate.Through the way, the agricultural waste could effectively reuse and further produce the high value silicon carbide.From high-resolution transmission electron microscopy(HRTEM) results,the growth of silicon carbide structure can be divided into whiskers,nanofiber and particle.The silicon carbide particles were embedded in the amorphous carbon.As a result, The morphology of nano silicon carbide can be separated by characteristic of hydrophilic and hydrophobic.
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