Open AccessPHOTOCATALYTIC DEGRADATION OF RHODAMINE B USING Ag NANO DOPED TiO2 PREPARED BY -IRRADIATION METHOD
Author(s) -
Vo Thi Thu Nhu,
Nguyễn Ngọc Duy,
Huynh Nguyen Anh Tuan,
Nguyen Pham Tu Ngan,
Do Quang Minh,
Nguyễn Quốc Hiến
Publication year - 2016
Publication title -
vietnam journal of science and technology/science and technology
Language(s) - English
Resource type - Journals
eISSN - 2815-5874
pISSN - 2525-2518
DOI - 10.15625/0866-708x/54/4/7201
Subject(s) - rhodamine b , photocatalysis , catalysis , materials science , nano , transmission electron microscopy , doping , degradation (telecommunications) , aqueous solution , irradiation , bet theory , visible spectrum , photochemistry , nuclear chemistry , nanomaterials , chemical engineering , nanotechnology , chemistry , optoelectronics , organic chemistry , composite material , physics , nuclear physics , engineering , telecommunications , computer science
Ag nano deposited on TiO2 (Degussa P25) (Ag nano/TiO2) photo-catalyst has been synthesized by g-irradiation method. The characteristics of Ag nano/TiO2 material has been investigated by BET surface area, X-ray diffraction (XRD), transmission electron microscopy (TEM) and the diffuse reflectance spectra (DRS). The photo-catalytic properties of Ag nano/TiO2 for degradation of Rhodamine B in aqueous solution under visible light have been studied. Results indicated that Ag nano/TiO2 photo-catalyst exhibited better photo-catalytic activity compared to that of TiO2 under the same reaction condition. The higher activity of Ag nano/TiO2 is due the enhancement of electron–hole separation effect on the surface of the catalyst. At 1.5% Ag doping content, the Ag nano/ TiO2 photo-catalyst exhibited the highest photo-catalytic activity under visible light.