Frontiers of Chemical Science and Engineering >
Photocatalytic degradation of omethoate using NaY zeolite-supported TiO2
Received date: 18 Apr 2008
Accepted date: 19 Oct 2008
Published date: 05 Jun 2009
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The degradation of omethoate was conducted using H2O2 as oxidant, TiO2 supported on NaY zeolite as photocatalyst and a 300 W lamp as light source. The effect of the calcination temperature of the photocatalyst, the amount of TiO2 loaded on NaY zeolite, the photocatalyst amount, the pH value and the radiation time on the degradation ratio of omethoate were investigated. The results show that TiO2/NaY zeolite photocatalyst prepared by sol-gel method had good photocatalysis. The photocatalytic optimum oxidation conditions of omethoate are as follows: the calcination temperature of the photocatalyst is 550°C,the amount of TiO2 loaded on NaY zeolite is 35.2 wt-%, the amount of photocatalyst is 5 g/L, pH=8 and the radiation time is 180 min. Under these conditions, the removal ratio of omethoate is up to 93%.
Key words： TiO2; NaY zeolite; photocatalytic degradation; omethoate
Dishun ZHAO , Jialei WANG , Zhigang ZHANG , Juan ZHANG . Photocatalytic degradation of omethoate using NaY zeolite-supported TiO2[J]. Frontiers of Chemical Science and Engineering, 2009 , 3(2) : 206 -210 . DOI: 10.1007/s11705-009-0053-4
| 1 |
Clive T. What they are; how they are used; how they are transported. Persistent Organic Pollutants,2002, 26: 1-5
|
| 2 |
Guan W T. Correct evaluation of organophosphorus insecticides. Insecticide, 1992, 31(6): 20-23
|
| 3 |
Amarolli D, Arakawa N S, Carvalho D. Safety measures in the application of organophosphate insecticides on staked tomato crops using dragged hoses. Bull Environ Contam and Toxicol, 2002, 68(4): 0490-0494
|
| 4 |
Leonard P G. Uses, benefits of organophosphate and carbamate insecticides in US crop production. NCFAP Reports, 1997, December, 1-15
|
| 5 |
Gao J L, Zhan F, Hou J. Study on biodegradation of omethoate and its immediate in wastewater. Henan Kexue, 1999, 17(2): 68-73 (in Chinese)
|
| 6 |
Purdey M. High-dose exposure to systemic phosmet insecticide modifies the phosphatidylinositol anchor on the prion protein: the origins of new variant trans44missible spongiform encephalopathies. Med Hypotheses, 1998, 50: 91-114
|
| 7 |
Millini R, Massara P E, Perego G,
|
| 8 |
MohamedR M, Ismail A A, Othman I, Ibrahim I A. Preparation of TiO2-ZSM-5 zeolite for photodegradation of EDTA. Journal of Molecular Catalysis A: Chemical, 2005, 238(1): 151-157
|
| 9 |
Ismail A A, Ibrahim I A, Ahmed M S, Mohamed R M, El-Shall H. Sol–gel synthesis of titania–silica photocatalyst for cyanide photodegradation. J. of Photochemistry and Photobiology :A Chemistry, 2004, 163: 445-451
|
| 10 |
Durgakumari V, Subrahmanyam M, Subba K V, Ratnamala A, Noorjahan M, Tanaka K. An easy and efficient use of TiO2supported HZSM-5 and TiO2+HZSM-5 zeolite combinate in the photodegradation of aqueous phenol and p-chlorophenol. Appl Catal A, 2002, 234: 155
|
| 11 |
Tang Q W, Lin J M, Wu Z B. Preparation and photocatalytic degradability of TiO2/polyacrylamide composite. European Polymer Journal, 2007, 43(6): 2214-2220
|
| 12 |
Notari B. Synthesis and catalytic properties of titanium-containing zeolites. Stud Surf Sci Catal, 1988, 37: 413
|
| 13 |
Boccuti M R, Rao K M, Zecchina A, Leofanti G, Petrini G. Spectroscopic characterization of silicalite and titanium-silicalite. Stud Surf Sci Catal, 1989, 48: 133-144
|
| 14 |
Wang C C, Lee C K, Lyu M D, Juang L C. Photocatalytic degradation of C.I. Basic Violet 10 using TiO2catalysts supported by Y zeolite: an investigation of the effects of operational parameters. Dyes and Pigments, 2008, 76: 817-824
|
| 15 |
Grzechulska J, Morawski A W. Photocatalytic decomposition of azo-dye acid black 1 in water over modified titanium dioxide. Applied Catalysis B: Environmental, 2002, 36: 45-51
|
| 16 |
Rabindranathan S, Suja D P, Yesodharan S. Photocatalytic degradation of phosphamidon on semiconductor oxides. J Hazard Mater B, 2003, 102: 217-229
|
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