Improvement of mesoporosity of activated carbons from PET by novel pre-treatment for steam activation
Improvement of mesoporosity of activated carbons from PET by novel pre-treatment for steam activation
复制标题
通过新型蒸汽活化预处理提高 PET 活性炭的中孔率
DOI：
10.1016/s0008-6223(99)00162-1
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
S. Nagano
中科院分区：
文献类型：
--
作者：
H. Tamon;Keizo Nakagawa;Takeo Suzuki;S. Nagano
制备可用于吸附大分子的介孔活性炭的方法是令人期望的。先前已有报道利用金属化合物的催化作用开发活性炭的中孔性。然而，据我们所知，尚未报道一种产生半径范围在2~10 nm之间的孔的非催化活化方法。本工作的目的是提出一种无需气化催化剂的蒸汽活化的新型预处理方法，以提高活性炭的介孔率。本文将钙化合物与原料（PET）混合，将样品碳化，然后进行酸处理。我们可以通过酸处理将碳中的钙化合物完全洗掉。经过预处理后，碳被蒸汽活化。虽然催化活化不是预期的，但我们可以制备具有大介孔率的活性炭。
The method of preparing mesoporous activated carbons useful for the adsorption of large molecules is desirable. The development of mesoporosity of activated carbons using catalytic effects of metal compounds has been previously reported. However, a non catalytic activation method which produces pores whose radii range between 2 ∼ 10 nm has not been reported as far as we are aware. The objective of present work is to propose a novel pre-treatment method for steam activation without gasification catalyst to improve the mesoporosity of activated carbons. In this article a calcium compound was mixed with raw material(PET), the samples were carbonized, and an acid treatment was then performed. We can completely wash the calcium compound out of the carbons by the acid treatment After this pre-treatment the carbon was activated by steam. Although the catalytic activation was not expected, we can prepare activated carbons that have large mesoporosity.