Heterogeneous Fenton-like degradation of methylene blue (MB) by magnetic nanoparticles Fe3O4@TiO2 in neutral condition

2017 3rd International Conference on Applied Materials and Manufacturing Technology

Hua, Junfeng^1 ; Huang, Mei^1

College of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou

310027, China^1

关键词: Acidic environment;    Feed concentration;    Heterogeneous fenton;    High-efficiency;    Magnetic nano-particles;    Methylene Blue;    Neutral conditions;    Reaction conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/242/1/012011/pdf
DOI  :  10.1088/1757-899X/242/1/012011

来源: IOP

【 摘 要 】

The traditional Fenton system (Fe2+-H2O2) only works in an acidic environment and produces a large quantity of sludge. In this study, magnetic nanoparticles Fe3O4@TiO2were used as a high-performance Fenton-like catalyst for the degradation of MB. The surface morphology was characterized by Transmission Electron Microscopy (TEM). And the Fenton-like catalytic activity of Fe3O4@TiO2was evaluated under different pH condition and various H2O2in feed concentration, respectively. The results indicated that nanoparticles Fe3O4@TiO2show high efficiency for methylene blue (MB) degradation under the reaction condition of H2O240mM, Fe3O4@TiO220mM, MB 300mg/L, pH 7 and 30 °C, the mineralization of persistent MB can achieve 72% COD removal ratio.