Journal
MATERIALS
Volume 12, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/ma12030338
Keywords
mechanochemistry; high-frequency electromagnetic-assisted ball-milling; FeOOH; catalysis
Categories
Funding
- Science and Technology Department of Guizhou Province-Guizhou Institute [(2015) 7089]
- Natural Science Foundation of Guizhou Province [Qian Ke He J (2017) 1071, (2016) 1061]
- Construction Project of Engineering Research Center of General Colleges and Universities in Guizhou Province [Qian Jiao HE KY (2017) 021]
- National Natural Science Foundation of China [51564005, 51664008]
- College Students' innovation and entrepreneurship projects [201714440022]
- Laboratory of Light Metal Materials Processing of Guizhou Province [Qian Ke He Platform and talent (2016) 5104]
- Technological Innovation Talent Team of Guizhou Province [Qian Ke He Talent Team (2015)4008]
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In this study, high-frequency electromagnetic-assisted ball-milling was used to prepare FeOOH/Cu catalyst. The combined effect of the high-frequency electromagnetic field and ball-milling resulted in the complete conversion of raw materials into FeOOH/Cu nanomagnetic hybrid at similar to 40 degrees C in only 30 h. Experiments showed that Rhodamine B was completely degraded within only 3 min, which was much faster than with previously reported catalysts. The combination effect of ball milling and microwave afforded excellent catalytic activity. Furthermore, the produced catalyst could be recovered easily using an external magnetic field for reuse. The influence of pH on the catalytic activity for degrading Rhodamine B, Phenol Red, Methyl Orange, and Methylene Blue were also investigated; Rhodamine B was completely degraded at pH 9 within only 2 min.
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