Open AccessSynthesis of N-doped TiO2 Nanoparticle by Solvothermal Method for Dye Treatment
Author(s) -
Suwapee Samangsri,
Siriluk Chiarakorn,
Thanita Areerob
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/576/1/012033
Subject(s) - photocatalysis , anatase , crystallite , materials science , titanium dioxide , dopant , methylene blue , titanium , doping , nuclear chemistry , specific surface area , nanoparticle , nitrogen , solvothermal synthesis , titanium oxide , chemical engineering , nanotechnology , inorganic chemistry , catalysis , chemistry , composite material , organic chemistry , metallurgy , optoelectronics , engineering
Nitrogen-doped titanium dioxide (NT) was synthesized by solvothermal method. Titanium (IV) butoxide (TBOT) was used as a titanium source and diethyleneamine (DEA) was used as a nitrogen source. The DEA concentration was fixed at 5% mol. The effect of the synthesized temperatures was studied (150 °C to 200 °C). The characterization results showed that the XRD patterns of NT synthesized by solvothermal method exhibited only anatase structure of TiO 2 at 25.56° (101), 37.76° (004), 48.04° (200), 48.18° (105), 54.06° (211), 55.24° (204), 62.76° (116), 69.04° (220), 70.32° (215) and 75.30° (303). The crystallite sizes of NT (13-14 nm) were smaller than that of TiO 2 (22.39 nm) while the surface area of NT (31-47 m 2 g −1 ) was larger than that of TiO 2 (6.42 m 2 g −1 ). This indicated that doping N on TiO 2 had a significant effect on crystallite size and surface area of TiO 2 . The photocatalytic activities of NT were evaluated by decolorization of 10 −5 M methylene blue (MB) under LED visible light irradiation. The result showed that the photocatalytic performance of TiO 2 was significantly improved by N dopant with the efficiency of 90%. However, the synthesized temperatures had no significant effect on the physical properties and the photocatalytic reactivity of NT.