Cellulose derived carbon nanofiber: A promising biochar support to enhance the catalytic performance of CoFe2O4 in activating peroxymonosulfate for recycled dimethyl phthalate degradation.
We prepared carbon nanofiber (CCNF) using cellulose as the carbon source in this study and utilized for the first time as the support to enhance the catalytic performance of the cobalt ferrite (CoFe2O4) for peroxymonosulfate (PMS) activation. The catalytic capability of the CoFe2O4/CCNF nanocomposites activated PMS was investigated through degrading dimethyl phthalate (DMP), a classical organic pesticide pollutant, in water media. The influence factors like CCNF content, nanocomposite and PMS dosage, DMP content, and pH value on the degradation speed were systematically investigated and analyzed. Since CoFe2O4 is a spinel structured molecule which is magnetically separable, the reusability of the prepared CoFe2O4/CCNF nanocomposites under multiple cycles was also tested. Besides, the degradation intermediates during the catalytic process were also analyzed and identified by liquid chromatography-mass spectrometry (LC-MS) with a possible degradation mechanism. The results indicated that the prepared nanocomposite had promising catalytic capability in degrading DMP, in which the SO4- radicals played the main role as the active oxidation agent. Furthermore, the CoFe2O4/CCNF nanocomposites exhibited very good stability and reusability. The present study provides a clean biochar supported catalyst which could readily enhance the PMS activation efficiency for recycled decontamination of refractory organic pollutants in water media.
['Gan|Lu|L|', 'Zhong|Qiang|Q|', 'Geng|Aobo|A|', 'Wang|Linjie|L|', 'Song|Chi|C|', 'Han|Shuguang|S|', 'Cui|Juqing|J|', 'Xu|Lijie|L|']
D002244:Carbon D002482:Cellulose D002606:Charcoal D008956:Models, Chemical D057139:Nanofibers D010545:Peroxides D010795:Phthalic Acids
Dimethyl phthalate degradation Cobalt ferrite Cellulose carbon nanofiber Peroxymonosulfate activation Recyclable catalyst