An optimization study of nickel catalyst supported on activated carbon for the 2-nitrophenol catalytic ozonation 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Desalination and water treatment: Science and engineering
年/卷/期
2018 / 112 / Apr.
页码
242-249
ISSN号
1944-3994
作者单位
Univ Gabes, Natl Engn Sch Gabes ENIG, Dept Chem Engn, Omar Ibn El Khattab St, Gabes 6029, Tunisia;Univ Gabes, Natl Engn Sch Gabes ENIG, Dept Chem Engn, Omar Ibn El Khattab St, Gabes 6029, Tunisia;CNRS, UMR 7661, Inst Sci Mat Mulhouse, 15 Rue Jean Starcky, F-68057 Mulhouse, France;Open Univ Cyprus, Fac Pure & Appl Sci, Lab Chem Engn & Engn Sustainabil Environm Conserv, Giannou Kranidioti 33, CY-2252 Nicosia, Cyprus;Open Univ Cyprus, Fac Pure & Appl Sci, Lab Chem Engn & Engn Sustainabil Environm Conserv, Giannou Kranidioti 33, CY-2252 Nicosia, Cyprus;Univ Gabes, Natl Engn Sch Gabes ENIG, Dept Chem Engn, Omar Ibn El Khattab St, Gabes 6029, Tunisia;
作者
Ghouma, Imen;Guiza, Monia;Jeguirim, Mejdi;Zorpas, Antonis A.;Limousy, Lionel;Ouederni, Abdelmottaleb;
摘要
Nickel-based catalysts were prepared through the impregnation of various nickel ion concentrations on activated carbons (ACs). Then, their textural and surface chemistry properties were characterized using various analytical techniques. The performance of the different catalysts was evaluated during the degradation of 2-nitrophenol by ozone in aqueous solution. In particular, a kinetic study was performed to investigate the effect of ozone/supported catalyst coupling process on nitrophenol degradation. The main results indicate that the optimum catalytic activity was observed when 4% (wt/wt) of Ni was supported on AC reaching a catalytic ozonation efficiency of 95%. The results of the total organic carbon (TOC) indicate that the presence of either AC or Ni/AC catalyst considerably improves the degradation of the phenolic compound when compared with the single ozonation process. A combine use of O-3/AC-Ni reduces TOC up to 59% in 30 min. Therefore, the 4% Ni/AC is a promising catalyst for ozonizing organic pollutants in aqueous solution.
机翻摘要
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关键词/主题词
Ozone;Advanced oxidation process;Nickel;AC;Phenolic compound;
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