期刊
CATALYSIS TODAY
卷 249, 期 -, 页码 192-198出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2014.10.046
关键词
Metal-free catalysts; Graphene-based materials; Nitrogen-doping; Liquid-phase oxidation; Water treatment
资金
- projects: FREECATS - European Union 7th FP grant [280658]
- FEDER through COMPETE - Programa Operacional Factores de Competitividade [PEst-C/EQB/LA0020/2013]
- FCT - Fundacao para a Ciencia e a Tecnologia
- QREN [NORTE-07-0162-FEDER-000050, NORTE-07-0202-FEDER-038900, NORTE-07-0124-FEDER-000015]
- ON2
- FEDER
- European Social Fund [IF/01501/2013]
- Human Potential Operational Programme
- FCT [SFRH/BD/95411/2013, SFRH/BPD/88964/2012, SFRH/BPD/80435/2011, SFRH/BPD/95538/2013]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/88964/2012, SFRH/BD/95411/2013] Funding Source: FCT
Nitrogen-doped graphene-based materials were prepared by the modified Hummers method using natural graphite as primary precursor, followed by chemical and thermal reduction processes, and finally ball milled with urea or melamine. The graphene-based materials were characterized at different stages of their synthesis by different techniques (including temperature programmed desorption and X-ray photoelectron spectroscopy) and then tested as metal-free catalysts in the degradation of oxalic acid and phenol by two different oxidation processes: catalytic wet air oxidation (temperature between 413 and 433 K, and 7 bar of O-2) and catalytic ozonation (room temperature and atmospheric pressure). The melamine treated sample was always found to be more active due to the presence of nitrogen groups and adequate surface area available. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据