This works concerns the characterization and the evaluation of adsorption capability of innovative porous materials synthesized by using alginates and different industrial by-products: silica fume and bottom ash. Hydrogen peroxide was used as pore former to generate a porosity able to trap particulate matter (PM). These new materials are compared with the reference recently proposed porous SUNSPACE hybrid material, which was obtained in a similar process, by using silica fume. Structural, morphological, colorimetric and porosimetric analyses were performed to evaluate the differences between the obtained SUNSPACE typologies. The sustainability of the proposed materials was evaluated in terms of the Embodied Energy and Carbon Footprint to quantify the benefits of industrial by-products reuse. Adsorption tests were also performed to compare the ability of samples to trap PM. For this aim, titania suspension, with particles size about 300 nm, was used to simulate PM in the nanoparticle range. The results show that the material realized with bottom ash has the best performance.

中文翻译：

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工业副产品再利用合成创新多孔材料，以改善城市空气质量

这项工作涉及使用海藻酸盐和不同工业副产品（硅粉和底灰）合成的创新多孔材料的表征和吸附能力评估。过氧化氢用作造孔剂以产生能够捕获颗粒物质 (PM) 的孔隙。这些新材料与最近提出的参考多孔 SUNSPACE 混合材料进行了比较，后者是通过使用硅粉在类似的过程中获得的。进行结构、形态、比色和孔隙度分析以评估获得的 SUNSPACE 类型之间的差异。拟议材料的可持续性根据具体能源和碳足迹进行评估，以量化工业副产品再利用的好处。还进行了吸附测试以比较样品捕获 PM 的能力。为此，使用粒径约为 300 nm 的二氧化钛悬浮液来模拟纳米颗粒范围内的 PM。结果表明，用底灰实现的材料性能最好。