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

建筑材料通过中间储存和降解空气污染物预防空气污染的潜力

• 批准号: 236233288
• 负责人: Professor Dr. Dietmar Stephan
• 金额: --
• 依托单位: Fachgebiet Baustoffe und Bauchemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/236233288?language=en
• 关键词: potential; building; materials; prevention; air

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.

在本项目中，计划对有机和无机气态污染物在不同组成的明确定义的测试样品上的吸附进行系统的研究。在这方面，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。待测试的材料不仅在孔隙含量上不同，而且在孔隙尺寸分布上也不同。通过选择粘合剂类型和水/固比，这些可以在很大范围内改变。从而可以识别显著的影响，并可以得出关于吸附能力的结论。非常有效的材料将在进一步的步骤中用TiO 2光催化剂改性。这允许确定储存的污染物是否降解以及降解到什么程度，以及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，材料可以系统地使用，以永久或至少暂时降低排放峰值在恶劣的天气条件下。对于未来的应用为导向的项目，这些发现将是非常有用的，以生产优化的环保建筑材料。