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论文类型：期刊论文

发表时间：2015-08-01

发表刊物：FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING

收录刊物：SCIE、Scopus

卷号：9

期号：4

页面范围：591-595

ISSN号：2095-2201

关键字：catalytic ozonation; reactive red X-3B; ceramic honeycomb; hydroxyl radical (OH center dot)

摘要：Catalytic ozonation of Reactive Red X-3B in aqueous solution had been carried out in an ozone oxidation reactor where Mn-Fe-ceramic honeycomb was used as the catalysts. The presence of Mn-Fe-ceramic honeycomb catalyst could obviously improve the decoloration efficiency of Reactive Red X-3B and the utilization efficiency of ozone compared to the results from non-catalytic ozonation. Adsorption of Reactive Red X-3B had no obviously influence on the degradation efficiency. Addition of tert-butanol significantly decreased the degradation efficiency, indicating that the degradation of Reactive Red X-3B followed the mechanism of hydroxyl radical (OH center dot) oxidation. The operating variables such as reaction pressure and ozone supply had a positive influence on the degradation efficiency, mainly attributing to facilitate the ozone decomposition and OH center dot formation.