| 光谱学与光谱分析 |
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| Photocatalytic Degradation of Imidacloprid by Composite Catalysts H3PW12O40/La-N-TiO2 under Visible Light |
| LIU Xia1, XU Gang2, FENG Chang-gen2 |
1. College of Science, China Agricultural University, Beijing 100193, China
2. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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Abstract Catalysts H3PW12O40/La-N-TiO2 were prepared and characterized by FT-IR, N2 adsorption-desorption analysis, SEM and UV-Vis diffuse reflection spectrum (DRS). It was demonstrated that Keggin structure of H3PW12O40 retained in composite materials by the FT-IR test; After doping La-N, the BET surface area of them is nearly 2 times as that of pure TiO2; the SEM images of the catalysts revealed that they were consist of relatively uniform spherical grains with good dispersion; UV-Vis DRS showed the photoresponse performance of the prepared composites for the visible light area were improved after doping La and N. The prepared composites were used as photocatalysts in degradation of pesticide imidacloprid. Results revealed that 30%H3PW12O40/0.3%La-1.0%N-TiO2 possessed the best photocatalytic activity under visible light above 400 nm. Thus, imidacloprid were degraded 91.57% after 3 h irradiation. When 30%H3PW12O40/0.3%La-1.0%N-TiO2 was used as catalysts, degradation ration could even reach 98.89% after 6 h.
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Received: 2013-06-05
Accepted: 2013-09-08
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Corresponding Authors:
LIU Xia
E-mail: liuxia6680@sina.com
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[1] Fujishima A, Honda K. Nature, 1972, 238(5358): 37-38.
[2] Cruz D de la, Arévalo, J C, Torres G, et al. Catalysis Today, 2011, 166(1): 152.
[3] Hu S Z, Li F Y, Fan Z P. Journal of Hazardous Materials, 2011, 196: 248.
[4] Zeng R, Wang J G, Cui J Y. Journal of Rare Earths, 2010, 28(S1): 353.
[5] FU Min, WANG Jian-wei, GAO Kun, et al(傅 敏，王建伟，高 堃，等). The Chinese Journal of Process Engineering(过程工程学报), 2009, 9(6): 1115.
[6] Xu J J, Chen M D, Fu D G. Transactions of Nonferrous Metals Society of China, 2011, 21(2): 340.
[7] ZHANG Shao-yan, CI Li-jie, DING Shi-wen, et al(张绍岩，次立杰，丁士文，等). Journal of Synthetic Crystals(人工晶体学报), 2010, 39(3): 761.
[8] Antonaraki S, Triantis T M, Papaconstantinou E, et al. Catalysis Today, 2010, 151(1-2): 119.
[9] Troupis A, Triantis T M, Gkika E, et al. Applied Catalysis B, 2009, 86(1-2): 98.
[10] Li L, Liu C M, Geng A F. Materials Research Bulletin, 2006, 41(2): 319-332.
[11] Lei P X, Chen C C, Yang J. Environmental Science & Technology，2005, 39(21): 8466.
[12] Li T H, Gao S Y, Li F. Journal of Colloid and Interface Science, 2009, 338(2): 500.
[13] LI Li, GUO Yi-xing, HU Chang-wen(李 莉，郭一荇，胡长文). Journal of Fudan University·Natural Science(复旦学报·自然科学版)，2003, 42(3): 409.
[14] Li L, Wu Q Y, Guo Y H, et al. Microporous and Mesoporous Materials, 2005, 87(1): 1.
[15] ZHOU Ping, LI Li, ZHANG Wen-zhi, et al(周 萍，李 莉，张文治，等). Chinese Journal of Catalysis(催化学报), 2004, 25(9): 753.
[16] Feng C G, Xu G, Liu X. Journal of Rare Earths, 2013, 31(1): 44. |
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