Alouiz Imad, Benhadj Mouhssine, Dahmane Elmontassir, Sennoune Mohamed, Amarouch Mohamed-Yassine, Mazouzi Driss
R.N.E Laboratory, Multidisciplinary Faculty of Taza, University Sidi Mohamed Ben Abdellah, Fez, Morocco.
Heliyon. 2024 Oct 2;10(20):e38886. doi: 10.1016/j.heliyon.2024.e38886. eCollection 2024 Oct 30.
The objective of this study is to examine the preparation of activated carbon with a fibrous structure obtained from olive pomace through a chemical activation process using phosphoric acid (HPO) as the activating agent under air at a lower temperature. According to the findings, the most effective conditions to achieve high-performance activated carbon were 22 vol% of HPO, a 2-h chemical activation impregnation residence time at 50 °C, and a 500 °C pyrolysis temperature for 1 h. Structural analysis revealed that activated carbons possess highly developed textural and structural properties, resulting in an iodine value of 923 mg/g and a specific surface of 1400 m/g. In addition to its microporosity, the produced carbon exhibits a highly developed fibrous structure, providing excellent adsorption properties. To confirm these results, SEM, FT-IR, XRF, XRD, Raman, and TGA techniques were employed. The fibrous carbon produced will expand the use of renewable carbon materials for removing various types of contaminants, including organic and inorganic pollutants in water, and numerous other industrial applications.
本研究的目的是考察在较低温度下于空气中通过以磷酸（H₃PO₄）作为活化剂的化学活化过程，由橄榄果渣制备具有纤维结构的活性炭。根据研究结果，获得高性能活性炭的最有效条件为：磷酸含量22%（体积分数）、在50℃下进行2小时的化学活化浸渍停留时间、以及在500℃下热解1小时。结构分析表明，活性炭具有高度发达的纹理和结构特性，碘值为923mg/g，比表面积为1400m²/g。除了微孔结构外，所制备的碳还呈现出高度发达的纤维结构，具有优异的吸附性能。为了证实这些结果，采用了扫描电子显微镜（SEM）、傅里叶变换红外光谱（FT-IR）、X射线荧光光谱（XRF）、X射线衍射（XRD）、拉曼光谱和热重分析（TGA）等技术。所制备的纤维状碳将扩大可再生碳材料在去除各种污染物（包括水中的有机和无机污染物）以及众多其他工业应用方面的用途。
