Fe@Fe2O3 Core-Shell Nanowires as Iron Reagent. 4. Sono-Fenton Degradation of Pentachlorophenol and the Mechanism Analysis
Fe@Fe2O3 Core-Shell Nanowires as Iron Reagent. 4. Sono-Fenton Degradation of Pentachlorophenol and the Mechanism Analysis
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DOI：
10.1021/jp800926n
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发表时间：
2008-05
影响因子：
3.7
通讯作者：
T. Luo;Zhihui Ai;Lizhi Zhang
中科院分区：
文献类型：
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作者：
T. Luo;Zhihui Ai;Lizhi Zhang
在这项研究中，一种新的sono-Fenton体系的基础上Fe@Fe2O3核壳纳米线被用来降解一种难降解的污染物，五氯苯酚（PCP）。研究了pH值和气氛对降解效率和氧化性自由基（如·OH自由基）产生的影响。通过对中间产物和最终产物的分析，探讨了其可能的分解途径。我们发现，这种sono-Fenton体系是有效的氧化PCP。研究结果有助于理解Fe@Fe2O3核壳纳米线与超声辐射协同降解水溶液中难降解有机污染物的机理.这种基于Fe@Fe2O3核-壳纳米线的sono-Fenton体系是一种经济环保的去除污染水中持久性有机污染物的新技术。
In this study, a novel sono-Fenton system based on Fe@Fe2O3 core−shell nanowires was used to degrade a recalcitrant pollutant, pentachlorophenol (PCP). We studied the influence of the pH value and the atmosphere on the degradation efficiency and the production of oxidative free radicals (such as ·OH radicals). The intermediates and the final products were determined for the analysis of the possible pathway of the decomposition. We found that this sono-Fenton system was effective for oxidizing PCP. The results help to the understanding the synergistic mechanism of the Fe@Fe2O3 core−shell nanowires and ultrasound irradiation for the decomposition of the recalcitrant organic pollutant in the aqueous solution. This sono-Fenton system based on the Fe@Fe2O3 core−shell nanowires is a new economic and environmentally friendly technique to eliminate persistent organic pollutants in contaminated water.