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化工学报  2015 

非均相类Fenton催化剂脱汞的实验与机理

DOI: 10.11949/j.issn.0438-1157.20141672, PP. 1324-1330

Keywords: ,催化剂,类Fenton,自由基,吸收

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Abstract:

采用共沉淀法分别制备Ti、Co、Cu掺杂Fe3O4的非均相类Fenton催化剂,在小型实验台架上进行非均相类Fenton反应脱汞的实验研究。利用X射线衍射(XRD)、扫描电子显微镜(SEM)对催化剂的晶体结构和形貌进行了表征。实验考察了掺杂前Fe3O4和掺杂后Fe2.59Ti0.41O4、Fe2.52Co0.48O4、Fe2.44Cu0.56O4催化剂的类Fenton脱汞性能,并通过电子顺磁共振技术(EPR)分析了非均相类Fenton脱汞的机理。结果表明:Ti、Cu掺杂后的催化剂具有较高的催化活性,的强氧化作用是类Fenton脱汞的主要原因。

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