Centro de Química de Évora and Departamento de Química, Instituto de Investigação e Formação Avançada and Escola de Ciências e Tecnologia, Universidade de Évora - Rua Romão Ramalho n(°)59, 7000-671 Évora, Portugal.
Centro de Química de Évora and Departamento de Química, Instituto de Investigação e Formação Avançada and Escola de Ciências e Tecnologia, Universidade de Évora - Rua Romão Ramalho n(°)59, 7000-671 Évora, Portugal; Faculdade de Educação, Artes e Humanidades, Departamento do Ensino de Química, Universidade Nacional Timor Lorosa'e, Rua Jacinto Cândido, Dili, Timor-Leste.
Bioresour Technol. 2018 Feb;249:328-333. doi: 10.1016/j.biortech.2017.10.033. Epub 2017 Oct 10.
This work presents a first approach concerning the use of Tectona Grandis tree sawdust (from East Timor) for high activated carbon production, by physical activation with carbon dioxide at different temperatures. The activated carbons (AC) obtained exhibit a well-developed porous structure with a pore size distribution varying from micro to mesopores. Selected AC was successfully evaluated for pesticide removal, specific to 4-chloro-2-methylphenoxyacetic acid, from the liquid phase. The results presented are very promising, allowing to establish that Tectona Grandis sawdust is as an excellent precursor for the basic AC production and allow to expect good performance of theses adsorbents on the removal of a broad range of pollutants. It should also be noted that, this achievement is very relevant for developing countries, such East Timor, where Tectona Grandis sawdust is available and may constitute a source of income creating a handle to the technical and industrial development of this region.
本工作首次提出了一种利用东帝汶产柚木树锯末（Tectona Grandis tree sawdust）通过在不同温度下用二氧化碳进行物理活化来生产高比表面积活性炭的方法。所得到的活性炭（activated carbon，AC）具有发达的微孔和介孔孔结构，孔径分布范围很宽。对所选 AC 进行了从液相中去除特定农药（4-氯-2-甲基苯氧乙酸）的评估。结果非常有前景，表明柚木树锯末是生产基础 AC 的极好前体，并有望使这些吸附剂在去除广泛的污染物方面具有良好的性能。还应该指出的是，这一成就对于东帝汶等发展中国家非常重要，因为东帝汶有柚木树锯末可用，它可能成为创造该地区技术和工业发展机会的收入来源。
