화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.18, No.1, 178-182, January, 2012
DOI10.1016/j.jiec.2011.11.011  Export Citation
Sol-gel reverse micelle preparation and characterization of N-doped TiO2: Efficient photocatalytic degradation of methylene blue in water under visible light
Kais Elghniji, Mohamed Ksibi†, and Elimame Elaloui1
  • Laboratoire Eau, Energie et Environnement (LR3E), Ecole Nationale d, University of Sfax, P.O. Box 1173, Sfax 3038, Tunisia
  • 1Environnement et Energie ME2 (O6/UR/1201), Faculte des Sciences de Gafsa, Campus Universitaire Sidi Ahmed Zarrouk, Unite de Recherche Materiaux, 2112 Gafsa, Tunisia
E-mail:
A series of N-substituted titanium (IV) 2-ethyl-1,3-hexanediolate Ti(C32H68O8) precursor were synthesized by the sol.gel reverse micelle (SGRM) method. The ethylene diaminetetraacetic acid (Na2EDTA) has been used as a source of nitrogen n species. The obtained solids were calcined at 500˚ C for 1 h to obtain photoactive phases. The effect of nitrogen content (N/Ti = 0.025; 0.03; 0.05 atomic ratios) is examined. The materials were characterized by XRD, BET, TG/DTA and UV.vis reflectance spectroscopy (DRS). Photocatalytic decolourisation of methylen blue (MB) in aqueous solution was carried out using nano, doped TiO2. Experimental results revealed that N/Ti = 0.05 atomic ratio N-doped TiO2 required shorter irradiation time for complete decolourisation of MB than pure nano TiO2 and commercial (Degussa P-25) TiO2.
Keywords:N-doped TiO2;Photocatalyst;Reverse micelle process;Na2EDTA;Visible light
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