Use of combined ion-exclusion and cation-exchange chromatography to study photooxidation of ionic nitrogen compounds on a titanium dioxide photocatalyst

• Autorzy: Mori M. , Taoda H. , Itabashi H. , Ikedo M. , Tanaka K.
• Języki publikacji: EN

Abstrakty

EN

Combined ion-exclusion and cation-exchange chromatography (IEC/CEC) on a weakly acidic cation-exchange resin in the H+-form (TSKgel Super IC-A/C) has been used as an advanced method for evaluation of the photooxidation of ionic nitrogen compounds, for example triethanolamine, trimethylamine, and urea, on a TiO2 photocatalyst. Formation of NH4+ and NO3- from each nitrogen compound by photooxidation on the catalyst du-ring UV irradiation was successfully monitored by use of IEC/CEC under optimized mobile-phase conditions (6 mM tartaric acid and 3 mM 18-crown-6). It was found that the products formed depended on whether or not a mole-cule contained a hydroxylated nitrogen moiety or other hydroxyl group.

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2006
• Tom: No. 16
• Strony: 28--37
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Mori M.

autor

Taoda H.

autor

Itabashi H.

autor

Ikedo M.

autor

Tanaka K.

• Faculty of Engineering, Gunma University, 1-5-1, Tanjin-cho, Kiryu, 376-8515, Japan

Bibliografia

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