Development of Carbonized TiO2-Woody Composites for Environmental Cleaning
Development of Carbonized TiO2-Woody Composites for Environmental Cleaning
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用于环境清洁的碳化二氧化钛-木质复合材料的开发
DOI：
10.2472/jsms.49.3appendix_15
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
D. Goring
中科院分区：
文献类型：
--
作者：
M. Doi;S. Saka;H. Miyafuji;D. Goring
致力于开发碳化TiO2-木质复合材料，可有效去除和分解环境中的有害空气污染物。选择甲醛 (HCHO) 作为空气污染物的一个例子来评估碳化 TiO2-木质复合材料。该复合材料由作为吸附剂的碳化木材和作为光催化剂的锐钛矿型二氧化钛（TiO2）组成。与由碳化木材和二氧化钛颗粒的简单物理混合物组成的非复合对照的性能相比，它们表现出更高的甲醛分解能力。这表明碳化TiO2-木质复合材料在光催化环境清洁方面存在协同效应。讨论了与复合材料中 TiO2 颗粒分布有关的协同效应的拓扑化学机制。
An effort was made to develop carbonized TiO2-woody composites which can effectively remove and decompose harmful air pollutants in environments. As an example of an air pollutant, formaldehyde (HCHO) was selected for evaluating the carbonized TiO2-woody composites. The composites were composed of carbonized wood as an adsorbent and the anatase-form of titanium dioxide (TiO2) as a photo-catalyst. They showed a much higher decomposing ability toward formaldehyde, when compared with the performance of non-composite controls composed of a simple physical mixture of carbonized wood and TiO2 granules. This indicates that synergetic effects existed in the carbonized TiO2-woody composites for photo-catalytic environmental cleaning. The topochemical mechanism inducing such synergetic effects is discussed in relation to the distribution of TiO2 granules in the composites.