Synthesis and Photocatalytic Properties of Nitrogen Modified Titanium Dioxide

Author:

Ivanova Nina K.1,Stoyanova Angelina M.1,Bachvarova-Nedelcheva Albena D.2,Iordanova Reni S.2

Affiliation:

1. Department of Chemistry and Biochemistry , Medical University – Pleven , Bulgaria

2. Institute of General and Inorganic Chemistry , Bulgarian Academy of Sciences - Sofia , Bulgaria

Abstract

Summary Pure and nitrogen-doped titanium dioxide (N-doped TiO2) photocatalysts were prepared by non-aqueous sol-gel method by means of the reaction between titanium (IV) chloride (TiCl4) and C6H5CH2 OH (benzyl alcohol), used as precursors and urea serving as a nitrogen source. The phase formation and short-range order of the resulting particles were characterized by X-ray powder diffraction (XRD) and infrared (IR) spectroscopy. The crystallite size of as-prepared composite powders was in the range 12-35 nm. The aim of this work was to investigate the efficiency of N-doped TiO2 as a photocatalyst in degradation of model organic pollutants - dyes Reactive Black 5 (RB5) and Malachite Green (MG), under ultraviolet (UV) and visible (Vis) irradiation. 0ur results indicated that synthesized N-TiO2 nanocomposites slightly improved the photocatalytic activity under UV irradiation, compared to the pure titanium dioxide (TiO2), and had no effect under Vis light illumination.

Publisher

Walter de Gruyter GmbH

Subject

General Medicine

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