SYNTHESIS AND CHARACTERIZATION OF LA DOPED TIO, NANOPARTICLES INVESTIGATION OF THEIRBAND GAP AND PHOTOCATALYTICPROPERTIES
سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 378
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شناسه ملی سند علمی:
UFGNSM03_012
تاریخ نمایه سازی: 10 تیر 1396
چکیده مقاله:
La doped TiO, was synthesized using TiCl, and La(NO3)3.6H2O as starting materials. The material was characterized by means of XRD, XRF, SEM, EDX, UV-Vis, BET-BJH analyses then tested as a photocatalyst in comparison with commercial Degussa TiO2. Results of characterization analyses showed that synthesized material was La Doped TiO, and it composed of anatase and a little rutile phases of TiO,. The band gap of the mater estimated to be 2.5 eV also its specific surface area and average pore diameter calculated to be and 59.3 m/g and 4.61 nm, respectively. Mesoporous La Doped TiO, showed much higher photocatalytic performance in eliminating of Direct red-27 dye as a model of pollutants under visible light compared to commercial TiO, (Degussa P25). However Degussa TiO, exhibited better efficiency towards the dye under ultra violet light.
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نویسندگان
SIMIN JANTABAR DARZI
Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute AEOI, P.O. Box:۱۱۳۶.۵/۸۴۸۶, Tehran-Iran
ALIREZA MAHJOUB
Faculty of Science, Tarbiat Modares University, P.O. Box. ۱۴۱۱۵-۱۷۵, Tehran-Iran
AZAM BAYAT
Faculty of Science, Tarbiat Modares University,