Low temperature combustion synthesis of nitrogen-doped graphene for metal-free catalytic oxidation
|dc.identifier.citation||Indrawirawan, S. and Sun, H. and Duan, X. and Wang, S. 2015. Low temperature combustion synthesis of nitrogen-doped graphene for metal-free catalytic oxidation. Journal of Materials Chemistry A. 3: pp. 3432-3440.|
Nitrogen-doped reduced graphene oxide (N-rGO) was prepared by a simple process of simultaneous reduction and nitrogen doping on graphene oxide (GO) at low temperatures using ammonium nitrate as a N precursor. Characterization techniques indicated that N-rGO materials with a high N loading (5–8 at%) can be easily produced and that the crystal/micro-structures and chemical compositions of N-rGO materials are dependent on the calcination conditions. The metal-free catalysis of N-rGO was investigated by catalytic activation of peroxymonosulfate (PMS) for phenol oxidative degradation in water. It was found that N-rGO samples are promising green catalysts for phenol degradation. Kinetic studies showed that phenol degradation follows first order reaction kinetics on N-rGO-350 with an activation energy of 31.6 kJ mol−1. The mechanism of PMS activation and phenol oxidation was elucidated by employing both electron paramagnetic resonance (EPR) studies and quenching tests with ethanol and tert-butanol.
|dc.publisher||R S C Publications|
|dc.title||Low temperature combustion synthesis of nitrogen-doped graphene for metal-free catalytic oxidation|
|dcterms.source.title||Journal of Materials Chemistry A|
|curtin.department||Department of Chemical Engineering|
|curtin.accessStatus||Fulltext not available|