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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Glass foams for environmental applications
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Glass foams for environmental applications

机译：环保玻璃泡沫

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摘要

Glass foams were produced using glass industrial waste and aluminium nitride as foaming agent. Steel-making dusts were also used to prepare these expanded materials. Time and temperature process parameters were tuned to adjust physico-chemical properties such as density and porosity. Structural characterisation by X-ray diffraction reveals the amorphous or crystalline nature depending on process parameters. Apparent density varies from 0.2 to 1.2 g cm~(- 3) and pycnometric density from 1 to 2.2 g cm~(- 3). The pore nature (close or open) is correlated to the preparation process and the initial batch composition. When doped or coated by titanium dioxide, expanded glasses present a photocatalytic activity in the UV region and were tested for toluene decomposition in gas phase. We have shown that TiO_(2-)coated foam glasses are efficient, as a support for total toluene photodegradation, in comparison with cellulose/TiO_2 based commercial support.
机译：使用玻璃工业废料和氮化铝作为发泡剂生产玻璃泡沫。炼钢粉尘也用于制备这些膨胀材料。调整时间和温度过程参数以调整物理化学性质，例如密度和孔隙率。通过X射线衍射进行的结构表征揭示了无定形或晶体性质，这取决于工艺参数。表观密度从0.2到1.2g cm〜（-3）变化，比重比重从1到2.2g cm〜（-3）变化。孔的性质（封闭或开放）与制备过程和初始批料组成有关。当用二氧化钛掺杂或涂覆二氧化钛时，膨胀玻璃在紫外线区域表现出光催化活性，并测试了气相中甲苯的分解。我们已经表明，与基于纤维素/ TiO_2的商业支持相比，TiO_（2-）涂层的泡沫玻璃作为有效的甲苯完全光降解的载体。

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