Fenton-like degradation of Methylene Blue using paper mill sludge-derived magnetically separable heterogeneous catalyst: Characterization and mechanism.
For the paper industry, the disposal and management of the yielded sludge are a considerable challenge. In our work, the paper mill sludge-derived magnetically separable heterogeneous catalyst (PMS-Fe-380) was prepared easily through a facile synthesis method. The morphology and structure of PMS-Fe-380 were fully characterized by means of X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Brunauer-Emmet-Teller analysis. The catalytic activity of PMS-Fe-380 was evaluated by degradation of Methylene Blue (MB). The reusability and stability of PMS-Fe-380 were evaluated in five repeated runs, which suggested that PMS-Fe-380 manifested excellent stability of catalytic activity. Moreover, leaching tests indicated that the leached iron is negligible (<0.5mg/L). This study provides an alternative environmentally friendly reuse method for paper mill sludge and a novel catalyst PMS-Fe-380 that can be considered as a promising heterogeneous Fenton-like catalyst.
Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.
Guoqiang
G
Zhou
Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.
Ziwen
Z
Chen
Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.
Fei
F
Fang
Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.
Yuefeng
Y
He
Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.
Haili
H
Sun
Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China. Electronic address: 11214033@zju.edu.cn.
Huixiang
H
Shi
D001870:Book Industry; D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D007220:Industrial Waste / Q000032:analysis*; D008751:Methylene Blue / Q000737:chemistry*; D010209:Paper; D012722:Sewage / Q000032:analysis*
D004396:Coloring Agents; D005290:Ferric Compounds; D007220:Industrial Waste; D012722:Sewage; D008751:Methylene Blue
Heterogeneous catalyst; Methylene Blue; Paper mill sludge