Study on impacts of some factors to synthesis and purification of graphene quantum dots from carbon felt
Abstract
The study reported study on preparation, characterization and application of Ni/biochar based catalyst derived from microalgal biomass. The catalyst was prepared by supporting Ni onto sulfonated biochar, assigned as Ni/biochar-S catalyst, through impregnation method. The biochar was obtained from the pyrolysis of the dried microalgal biomass, and bio-oil was also obtained from the same process. The catalyst was applied in the upgrading process of the bio-oil in order to establish the hydrodeoxygenation (HDO) and hydrodenitrogenation (HDN) reactions. The results showed that the catalyst possesed amorphous structure and had good distribution of Ni metal on the support. The catalyst activity was high compared to many other traditional catalysts with good rate of removal of oxygen and nitrogen in the final product. Many techniques were applied to characterize these catalysts including XRD, TEM, FT-IR, H2-TPR and NH3-TPD. The product composition was determined by using the GC-MS method.
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