摘要： 采用原位氧化还原法制备了三维石墨烯负载型Fe₃O₄（Fe₃O₄/3D GN）非均相Fenton反应催化剂，对其进行了表征，并用于酸性红B染料废水的Fenton氧化降解。表征结果显示：制备的Fe₃O₄/3D GN具有相互贯通的独特三维网状结构，Fe₃O₄纳米颗粒均匀分散在石墨烯片层中。实验结果表明：Fe₃O₄/3D GN具有较高的催化活性和稳定性。Fe₃O₄/3D GN非均相Fenton催化降解酸性红B的最佳工艺条件为：H₂O₂投加量0.67 mL/L，催化剂投加量1 g/L，初始溶液pH为6。在此最佳工艺条件下反应30 min，酸性红B染料废水的脱色率达到95.64%。

关键词: 非均相Fenton, 四氧化三铁, 三维石墨烯, 酸性红B

Abstract: Three-dimensional graphene supported Fe₃O₄(Fe₃O₄/3D GN)heterogeneous Fenton reaction catalyst has been prepared by in-situ oxidation-reduction method,characterized,and used for Fenton oxidation degradation of acid red B dye wastewater. The characterization results show that the Fe₃O₄/3D GN prepared has an interconnect-ed,unique 3D net structure. Fe₃O₄ nano-particles are dispersed homogeneously in grapheme layers. The experi-mental results show that Fe₃O₄/3D GN has higher catalytic activity and stability. The optimum degradation condi-tions of Fe₃O₄/3D GN heterogeneous Fenton catalytic degradation acid red B are as follows:the dosage of H₂O₂ is 0.67 mL/L and catalyst 1 g/L,and initial solution pH 6. After it is reacted for 30 min under these optimal condi-tions,the decolorization rate of acid red B is as high as 95.64%.

Key words: heterogeneous Fenton, ferroferric oxide, three-dimensional graphene, acid red B

中图分类号: 

• X703.1