The potential of building materials on the prevention of air pollution by intermediate storage and degradation of air pollutants

在这个项目中，计划系统地研究有机和无机气体污染物在定义明确的不同组成的测试样品上的吸附。在这种情况下，将确定材料的组成及其不同的物理和化学性质（例如zeta电位、孔隙含量、孔径分布、比表面积），并将其与污染物的吸附特性相关联。待测材料不仅孔隙含量不同，而且孔隙大小分布也不同。这些可以通过选择粘合剂类型和水固比在很大范围内改变。从而可以确定对吸附能力的显著影响并得出结论。在下一步中，将用TiO2光催化剂修饰非常有效的材料。这样就可以确定储存的污染物是否降解以及在何种程度上降解，哪些参数是影响因素。该项目的目的是揭示基本的相关性，这有助于评估建筑材料作为污染物缓冲系统的潜力。有了这些知识，就可以系统地使用材料，永久性地或至少在恶劣天气条件下暂时减少排放峰值。对于未来面向应用的项目，这些发现将对生产优化的环境友好型建筑材料非常有用。

In this project, systematic studies are planned on the adsorption of organic and inorganic gaseous pollutants on well-defined test samples of different composition. In this context, the composition of the materials and their different physical and chemical properties (e.g. zeta potential, pore content, pore size distribution, specific surface area) will be determined and correlated with the sorption characteristics of the pollutants. The materials to be tested will differ not only in pore contents but also in pore size distributions. These can be changed in a wide range by selection of the binder type and the water/solid ratio. Thereby significant influences can be identified and conclusions on the adsorption capacities can be drawn. Very effective materials will be modified with TiO2 photocatalyst in a further step. This allows determining whether and to what extent the stored pollutants are degraded and which parameters are the influencing factors. The aim of the project is to open up fundamental correlations, which can help to evaluate the potential of building materials as buffering systems for pollutants. With this knowledge materials can be systematically used, to reduce emission peaks permanently or at least temporarily at bad weather conditions.For future application-oriented projects these findings will be very useful to produce optimized environmentally friendly building materials.