Premium
Photocatalytic Degradation of Dicofol and Pyrethrum with Boric and Cerous Co‐doped TiO 2 under Light Irradiation
Author(s) -
GONG Lifen,
ZOU Jing,
ZENG Jinbin,
CHEN Wenfeng,
CHEN Xi,
WANG Xiaoru
Publication year - 2009
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200990031
Subject(s) - photocatalysis , anatase , chemistry , nuclear chemistry , titanium dioxide , nanoparticle , rutile , inorganic chemistry , chemical engineering , materials science , nanotechnology , organic chemistry , catalysis , engineering
Boric and cerous co‐doped nano titanium dioxide (B/Ce co‐doped TiO 2 ) was synthesized using a sol‐gel technique, which involved the hydrolyzation of tetrabutyl titanate with the addition of boric acid and cerous nitrate. The B/Ce co‐doped TiO 2 was employed for the photocatalytic degradation of dicofol, cyfluthrin and fenvalerate under light irradiation. XRD, TEM, FT‐IR and UV‐Vis DRS methods were used to characterize the crystalline structure. Experimental results showed that only the anatase signal phase was found for B/Ce co‐doped TiO 2 , but multiplicate phases, including anatase, rutile and less brookite phases, were identified both in the pure TiO 2 nanoparticles and Ce‐doped TiO 2 nanoparticles. The band gap value of B/Ce co‐doped nano TiO 2 was narrower than that of undoped nano TiO 2 . Compared to undoped TiO 2 , a stronger absorption in the range of 420 to 850 nm was found for B/Ce co‐doped nano TiO 2 , which presented a higher photocatalytic activity in the degradation of dicofol, cyfluthrin and fenvalerate than both Ce doped nano TiO 2 and pure nano TiO 2 under the same light irradiation.