Preparation of nano-sized mixed crystal TiO2-coated Er3+:YAlO3 by sol-gel method for photocatalytic degradation of organic dyes under visible light irradiation.
In this work, an upconversion luminescence agent, crystallized Er(3 + ):YAlO(3), was synthesized and then coated by the nano-sized TiO(2) film through sol-gel technique. A novel TiO(2) photocatalyst, Er(3 + ):YAlO(3)/TiO(2), with high activity in visible light was subsequently prepared. The Er(3 + ):YAlO(3) and Er(3 + ):YAlO(3)/TiO(2) were characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). The photocatalytic activity of Er(3 + ):YAlO(3)/TiO(2) photocatalyst was tested by the degradation of acid red B in aqueous solution as the primary model compound under visible light irradiation. The experimental results proved that the prepared TiO(2)-coated crystallized Er(3 + ):YAlO(3) was able to decompose the acid red B efficiently, and it is promising to use the idea to develop new TiO(2) photocatalyst with high activity for photocatalytic degradation under visible light.
Wang
Jun
J
Department of Chemistry, Liaoning University, Shenyang 110036, China. wangjun890@126.com
Li
Jia
J
Liu
Bin
B
Xie
Yingpeng
Y
Han
Guangxi
G
Li
Ying
Y
Zhang
Liqun
L
Zhang
Xiangdong
X
D000537:Aluminum Oxide / Q000737:chemistry*; D001391:Azo Compounds / Q000737:chemistry; D002384:Catalysis / Q000528:radiation effects; D004396:Coloring Agents / Q000737:chemistry*; D003460:Crystallization; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration / Q000528:radiation effects; D007700:Kinetics; D008027:Light; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D009282:Naphthalenesulfonates / Q000737:chemistry; D009930:Organic Chemicals / Q000737:chemistry*; D010316:Particle Size; D044367:Phase Transition / Q000528:radiation effects*; D011208:Powders; D013056:Spectrophotometry, Ultraviolet; D013997:Time Factors; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
D001391:Azo Compounds; D004396:Coloring Agents; D009282:Naphthalenesulfonates; D009930:Organic Chemicals; D011208:Powders; C521611:acid red B; C009495:titanium dioxide; D014025:Titanium; D000537:Aluminum Oxide