[Kinetic study on photodegradation of acid red 3B catalyzed by heteropoly acid].
The kinetics of degradation of Acid Red 3B photocatalyzed by PW12O(40)3- was studied in aqueous solution. Light intensity, dissolved oxygen, added amount of the catalyst, and the initial concentration of substrate had positive effects on the photodegradation rate of Acid Red 3B. The results were explained by Langmuir-Hinshelwood model, implying there was precomplexation between catalyst and substrate. Results compared to UV/TiO2 method indicated that heteropoly acid is an efficient photocatalyst.
Yang
Xi
X
Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
Yu
Gang
G
Kong
Lingren
L
Wang
Liansheng
L
D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry*; D007700:Kinetics; D008027:Light; D010084:Oxidation-Reduction; D010777:Photochemistry; D014025:Titanium / Q000737:chemistry
D004396:Coloring Agents; C009495:titanium dioxide; D014025:Titanium