Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/29694
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    標題: Nitrogen gas selectivity enhancement on nitrate denitrification using nanoscale zero-valent iron supported palladium/copper catalysts
    作者: Lubphoo, Yingyote
    Chyan, Jih-Ming
    Grisdanurak, Nurak
    Liao, Chih-Hsiang
    貢獻者: 環境資源管理系
    關鍵字: denitrification
    catalyticnitratereduction
    nanoscalezero-valentiron
    trimetal
    nitrogengasselectivity
    pseudo-second-orderreaction
    日期: 2015-12
    上傳時間: 2016-04-19 19:04:54 (UTC+8)
    出版者: Elsevier Science Bv
    摘要: Nanocomposite trimetals, (Cu-Pd)-nFe(0) and (Pd-Cu)-nFe(0), were used for enhancing both nitrogen gas selectivity and nitrate removal. The initial pH, temperature and initial nitrate concentration were investigated as variable parameters in this study. It was found that the trimetal (Pd-Cu)-nFe(0) (10% (Pd-Cu) loading and 2:1 (Pd:Cu) ratio) is promising under the conditions of 50 degrees C, pH 7 and 100 mg NO3-/L; its largest N-2 gas selectivity was 60.5%, and NO3- removal 90%. Based on the kinetic analysis, pseudo-second-order reaction was closely followed under the studied conditions. Higher nitrate removal rate was observed under acidic and high temperature conditions. The activation energy of nitrate reduction over the temperature range of 20-50 degrees C was 51.0 kJ mol(-1)
    關聯: Journal of The Taiwan Institute of Chemical Engineers, v.57, pp.143-153
    显示于类别:[環境資源管理系(所)] 期刊論文

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