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环境化学  2015 

Ag@AgCl催化剂的制备及可见光降解三聚氰胺

Keywords: Ag@AgCl,可见光降解,三聚氰胺

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Abstract:

在超声波辅助作用下制备了Ag@AgCl可见光催化剂,采用紫外可见分光光度计、扫描电镜(SEM)对该催化剂进行了表征,该催化剂在可见光区有较强的吸收,粒径在微米级.以三聚氰胺为模型化合物测试其可见光催化性能.研究发现,该催化剂在可见光照下,不仅可以使三聚氰胺发生脱氨基反应,而且能使其环结构破坏,但却不能催化氰脲酸降解.通过除氧实验、空穴捕获、顺磁共振等实验测试,对其可能的催化降解机理进行了探讨.

References

[1]  Hu C,Yu J C, Hao Z P, et al.Photocatalytic degradation of triazine-containing azo dyes in aqueous TiO2 suspension [J]. Appl Catal B: Environ, 2003, 42(1): 47-55
[2]  Vuliet E, Emmelin C, Chovelon J M, et al. Photocatalytic degradation of sulfonylurea herbicides in aqueous TiO2 [J]. Appl Catal B: Environ, 2002, 38(2): 127-137
[3]  赵丹,孙春燕,陈春城,等.新型污染物多溴联苯醚和氰脲酸的光化学降解 [J].化学进展,2009,21(2/3): 400-405
[4]  Watanabe N, Horikoshi S, Hidaka H, et al. On the recalcitrant nature of the triazinic ring species, cyanuric acid, to degradation in Fenton solutions and in UV-illuminated TiO2 (naked) and fluorinated TiO2 aqueous dispersions [J]. Photochem Photobiol A: Chem, 2005, 174(1): 229-238
[5]  Macyk W, Burgeth G, Kisch H. Photoelectrochemical properties of platinum(Ⅳ) chloride surface modified TiO2 [J]. Photochem Photobiol Sci, 2003, 2(3): 322-328
[6]  Hoffmann M R, Martin S T, Choi W, et al. Environmental application of Semiconductor photocatalysis [J]. Chem Rev, 1999,95: 69-96
[7]  Seger B, Kamat P V. Fuel cell geared in reverse: photocatalytic hygrogen production using a TiO2/nafion/Pt membrane assembly with no applied bias [J]. J Phys Chem C, 2009, 113: 18946-18952
[8]  Koglin E, Kip B J, Meier R J. Adsorption and displacement of melamine at the Ag/electrolyte interface probed by surface-enhanced raman microprobe spectroscopy [J]. J Phys Chem, 1996, 100: 5078-5089
[9]  Oh Y C, Jenks W S J. Photocatalytic degradation of a cyanuric acid, a recalcitrant species [J]. Photochem Photobiol A: Chem, 2004,162(2/3): 323-328
[10]  Janczyk J, Krakowska E, Stochel G,et al. Singlet oxygen photogeneration at surface modified titanium dioxide [J]. J Am Chem Soc, 2006, 128(49): 15574-15575
[11]  Wang P, Huang B B, Qin X Y, et al. Ag@AgCl: A highly efficient and stable photocatalyst active under visible light [J]. Angew Chem Int Ed, 2008, 47: 1-4
[12]  Zhang H, Fan X F, Quan X, et al. Graphene sheets grafted Ag@AgCl hybrid with enhanced plasmonic photocatalytic activity under visible light [J]. Environ Sci Technol, 2011, 45: 5731-5736
[13]  黄艳红,丁健桦,邱昌福,等.液相微萃取-高效液相色谱法测定乳制品中的三聚氰胺[J].食品科学,2010, 31(02): 161-164

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