Cobalt super-microparticles anchored on nitrogen-doped graphene for aniline oxidation based on sulfate radicals.

Author(s) Qin, X.; Fang, S.; Zhao, L.; Shi, P.; Fan, J.; Min, Y.; Xu, Q.; Yao, W.
Journal Sci Total Environ
Date Published 2017 Dec 01

Cobalt super-microparticles anchored on nitrogen-doped graphene (Co-NG) were prepared using an inexpensive method and were tested for heterogeneous oxidation of aniline with peroxymonosulfate (PMS) in aqueous solutions. The crystal structure, morphology, and textural properties of Co-NG hybrids were investigated by various characterization techniques, such as X-ray diffraction, Raman spectroscopy, dark-field scanning transmission electron microscopy and X-ray photoelectron spectroscopy. Electron paramagnetic resonance and classical quenching tests were conducted to investigate the mechanism of PMS activation and aniline oxidation. The catalyst Co-NG exhibits an unexpectedly high catalytic activity in the degradation of aniline in water by advanced oxidation technology based on sulfate radicals (SO4(-)), and 100% decomposition can be achieved in 10min. This paper offers new insights on heterogeneous catalysis.

DOI 10.1016/j.scitotenv.2017.05.198
ISSN 1879-1026
Citation Sci Total Environ. 2017;601-602:99108.

Related Applications, Forms & Industries