Photocatalytic degradation of cellulose bleaching effluent by supported TiO2 and ZnO.
Photocatalytic degradation of cellulose bleaching effluent by supported TiO2 and ZnO.
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DOI：
10.1016/s0045-6535(99)00551-2
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发表时间：
2000-10
期刊：
影响因子：
8.8
通讯作者：
M. Yeber;Jaime Rodríguez;J. Freer;N. Durán;H. Mansilla
中科院分区：
文献类型：
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作者：
M. Yeber;Jaime Rodríguez;J. Freer;N. Durán;H. Mansilla
使用负载在玻璃拉西环上的 TiO2 和 ZnO，通过光催化在间歇条件下降解纤维素漂白废水 (E1)。两种催化剂处理120分钟后，出水完全脱色，总酚含量降低85%。总有机碳 (TOC) 减少约 50%，证实了有机质的部分矿化。与初始值相比，残余有机物表现出较低的急性毒性，并且光催化氧化后AOX值大大降低。分子量分布表明高分子量化合物几乎完全降解。
A cellulose bleaching effluent (E1) was degraded in batch conditions by photocatalysis using TiO2and ZnO supported on glass Raschig rings. The effluent was completely decolourised and the total phenol content was reduced by 85% after 120 min treatment with both catalysts. Partial mineralization of the organic matter was confirmed by total organic carbon (TOC) reduction, approximately 50%. The residual organic matter shows a low acute toxicity as compared to the initial values and AOX values are strongly reduced after the photocatalytic oxidation. Molecular mass distribution showed that high molecular mass compounds were almost completely degraded.