Decomposition of formic acid in a photocatalytic reactor with a parallel array of four light sources
Decomposition of formic acid in a photocatalytic reactor with a parallel array of four light sources
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具有四个光源平行阵列的光催化反应器中甲酸的分解
DOI：
10.1002/jctb.640
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发表时间：
2002
影响因子：
3.4
通讯作者：
K. Nakano
中科院分区：
文献类型：
--
作者：
Shinpon Wang;F. Shiraishi;K. Nakano
以甲酸水溶液为研究对象，考察了4支6 W蓝光荧光灯（波长300-400 nm）并联组成的光催化反应器的性能。将甲酸水溶液（7.8- 22.0gm-3）在光催化反应器和完全混合流容器之间再循环。结果表明，紫外光穿透玻璃管壁，再穿过流动的溶液，加速了相邻玻璃管上发生的光催化反应，大大提高了反应器的活性。这证实了有效利用三维空间的多个光源的并联布置可以导致反应器活性的增加和分解速率的增加。观察到由于二氧化钛膜附近的膜扩散阻力而导致的反应速率的显著降低。
© 2002化学工业协会
The performance of a photocatalytic reactor system with a parallel array of four 6 W blacklight blue fluorescent lamps (wavelength: 300–400 nm) was investigated, based on the decomposition of formic acid in an aqueous solution. An aqueous solution of formic acid (7.8–22.0 gm−3) was recirculated between the photocatalytic reactor and perfectly-mixed flow container. The results show that the UV-light that penetrated through the wall of a glass tube and then passed through the flowing liquid solution accelerated the photocatalytic reaction occurring on the neighboring glass tubes, which greatly contributed to an increase in the reactor activity. This confirms that the arrangement of several light sources in parallel which uses effectively a three-dimensional space can lead to increased reactor activity and an increase in decomposition rates. A significant reduction in the reaction rate due to a film-diffusional resistance in the vicinity of the titanium dioxide film was observed.
© 2002 Society of Chemical Industry