Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
J Hazard Mater. 2010 May 15;177(1-3):331-5. doi: 10.1016/j.jhazmat.2009.12.036. Epub 2009 Dec 29.
Adsorption characteristics of carbon cryogel microspheres (CC microspheres) with controlled porous structure composed of mesopores (2 nm<d(p)<50 nm; d(p) is pore diameter) and micropores (d(p)<2 nm) were studied to examine their suitability as adsorbents for a volatile organic compound (VOC). The amount of toluene, as a model VOC, adsorbed on the CC microspheres could be changed by varying either the size of the mesopores or the volume of the micropores. The peak temperature of the temperature-programmed desorption profiles of toluene from the CC microspheres was higher than that from granular activated carbon (GAC) with numerous micropores, indicating that toluene is adsorbed more strongly on CC microspheres than on GAC. To permit the practical use of CC microspheres, the adsorption characteristic of moisture on CC microspheres and GAC were evaluated. The effect of adsorption of moisture on the gas permeation property of an adsorption module prepared from the CC microspheres was also examined.
研究了具有中孔（2nm<d(p)<50nm;d(p)是孔径）和微孔（d(p)<2nm）组成的可控多孔结构的碳质冷冻凝胶微球（CC 微球）的吸附特性，以考察其作为挥发性有机化合物（VOC）吸附剂的适宜性。通过改变中孔的大小或微孔的体积，可以改变甲苯作为模型 VOC 在 CC 微球上的吸附量。从 CC 微球上脱附的甲苯的程序升温脱附曲线的峰值温度高于具有大量微孔的颗粒活性炭（GAC），表明甲苯在 CC 微球上的吸附强度高于 GAC。为了允许 CC 微球的实际使用，评估了 CC 微球和 GAC 上水分的吸附特性。还检查了吸附的水分对由 CC 微球制备的吸附模块的气体渗透性能的影响。
