Preparation and Characterization of Camellia Shell Biochar

文献类型： 外文期刊

第一作者： Qin, Zuodong

作者： Qin, Zuodong;Li, Zhizhang;Wang, Meifeng;Duns, Gregory J.;He, Fulin;Luo, Xiaofang;Qin, Zuodong;Qin, Zuodong;Wang, Jianhua;Yang, Shengmao;Wang, Yuying;Zeng, Weixi;Yang, Shengmao;Wang, Yuying;Zeng, Weixi

作者机构：

关键词： Camellia Shell;Biochar;Physicochemical Properties

期刊名称：NANOSCIENCE AND NANOTECHNOLOGY LETTERS （ 影响因子：1.128； 五年影响因子：0.985 ）

ISSN： 1941-4900

年卷期： 2016 年 8 卷 12 期

页码：

收录情况： SCI

摘要： Using Camellia shell as a raw material, pyrolysis was performed at 300 degrees C, 500 degrees C and 700 degrees C to prepare biochar. The physical and chemical properties of the resulting biochar were determined by a combination of elemental analysis, Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The results showed that with the increase in carbonization temperature, the yields of biochar were reduced, the carbon content, ash content and pH increased, but when the temperature rose to a certain extent, the carbon content did not change significantly. The Fourier transform infrared spectra indicated that the carbonized biochar functional group absorption peaks disappeared and a large degree of aromatics appeared after 700 degrees C, which was consistent with the elemental analysis. SEM showed that the biochar carbonized at 700 degrees C had more rough pores distributed in a layered structure and had more adsorption sites than the biochar produced at the other temperatures, consistent with the specific surface area and pore size measurements. Surface area/porosity analysis showed that the surface area of BC700 is the largest; providing more available adsorption sites. Thus, the Camellia shell biochar carbonized at 700 degrees C has better characteristic effects as an adsorbent.

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