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An effective and magnetic Fe2O3-ZrO2 catalyst for phenol degradation under neutral pH in the heterogeneous Fenton-like reaction
Separation and Purification Technology ( IF 8.1 ) Pub Date : 2018-03-13 , DOI: 10.1016/j.seppur.2018.03.017
Pan Gao , Yuan Song , Mengjie Hao , Anna Zhu , Hongwei Yang , Shaoxia Yang

A novel Fe2O3-ZrO2 catalyst was prepared by the sol-gel method, and investigated for phenol degradation in the Fenton-like reaction under neutral pH condition. The ZrO2 addition increased the surface areas of the catalyst. Scanning electron microscopy (SEM) showed that ZrO2 nano-particle dispersed on the surface of Fe2O3. X-ray photoelectron spectroscopy (XPS) indicated that the Fe2+ amount increased with the increase of the Zr content on the surface. The Fe2O3-ZrO2 catalyst produced hydroxyl radicals (OH) and superoxide radicals (O2/HO2), and exhibited good catalytic performance in the reaction. Total phenol conversion and 56% TOC removal were achieved after 210 min under neutral pH at 60 °C in the heterogeneous Fenton-like reaction. In addition, the prepared Fe2O3-ZrO2 catalyst had good magnetism.



中文翻译:

一种有效的磁性Fe 2 O 3 -ZrO 2催化剂,用于在非均相Fenton类反应中在中性pH下降解苯酚

通过溶胶-凝胶法制备了一种新型的Fe 2 O 3 -ZrO 2催化剂,并研究了在中性pH条件下Fenton样反应中苯酚的降解。ZrO 2的添加增加了催化剂的表面积。扫描电子显微镜(SEM)显示ZrO 2纳米颗粒分散在Fe 2 O 3的表面上。X射线光电子能谱(XPS)表明,Fe 2+的含量随着表面Zr含量的增加而增加。Fe 2 O 3 -ZrO 2催化剂产生羟基自由基(OH )和超氧自由基(O2 - / HO 2),并且在反应表现出良好的催化性能。在非均相的Fenton样反应中,在60°C的中性pH下210分钟后,总酚转化率和TOC去除率达到56%。另外,制得的Fe 2 O 3 -ZrO 2催化剂具有良好的磁性。

更新日期:2018-03-13
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