掺杂介孔分子筛在木材阻燃中的烟气捕集与转化机理研究

木材易燃，不仅会导致火灾蔓延，而且燃烧时释放烟雾毒气是导致人员伤亡的主要原因。木材阻燃受到人们的广泛关注，抑烟减毒却研究不多。研究表明掺杂介孔分子筛用于木材阻燃具有烟气捕集与催化减毒作用。本项目在前期研究基础上，采用锥形量热、TG-FTIR-MS等现代仪器，在选择吸附和催化氧化理论的指导下，运用静态/动态吸附和热解表观动力学等方法，探索火灾环境下烟气的捕集规律与转化效率，揭示介孔分子筛掺杂活性组分（过渡金属、稀土元素、金属复合氧化物等）对木材阻燃过程中的烟雾毒气的捕集与催化转化机理，获得降低火灾环境下烟雾毒气浓度的原理和方法，为木材阻燃中抑烟减毒提供科学理论依据和技术支撑，对于降低烟雾和毒气，减少人员伤亡具有重要的意义。

For the flammable characteristic, wood can not only cause fire to spread but also release plenty of smog and toxic gas when burning, which is the main reason resulting in casualties. The study in the past is, however, mainly focused on flame retardant for wood rather than smoke suppression and attenuation. Preliminary work found out that doped mesoporous molecular sieves took a role in gas capture and catalytic attenuation for wood flame retardant. Based on our early research, this project probes the law of smoke trapping and conversion efficiency, the mechanism of gas capture and catalytic transformation for fire retardant of wood with different activated components ( such as transition metals, rare earth elements, metal oxide, etc.) doped mesoporous molecular sieves, using the cone calorimeter, TG-FTIR-MS, by static/dynamic adsorption and pyrolysis apparent dynamics method and under the theory of the selective adsorption and catalytic oxidation, so that the principles and methods to reduce the smoke concentration of the fire can be obtained, which would provide theoretical basis and technical support for smoke suppression and attenuation in flame retardant of wood,thus reducing casualties.