Surface modification of nano-TiO2 with lanthanide-acetylacetonate complexes
Vol 5, Issue 1, 2022
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Abstract
The surface modification of nano-TiO2 was carried out with lanthanide-acetylacetonate complexes by adsorption method. The effects of lanthanide complexes content, lanthanide element type, adsorption temperature, solvent dosage, adsorption time and other conditions on the photodegradation activity of methyl orange by the modified catalyst were studied, and suitable modification conditions were obtained. The results show that the photocatalytic activity of the modified nano-TiO2 is much higher than that of the unmodified pure TiO2, and the lanthanide-acetylacetonate complexes is an excellent surface modifier.
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1. Yao C, Yang G, Lin X, et al. Surface-modification of nanosized titanium dioxide particles. China Surfactant Detergent & Cosmetics 2004; 34(4): 252–255, 261.
2. Sun X, Lin Y, Jia Z, et al. Studies on SiO2-coated nanometer TiO2. Micronanoelectronic Technology 2002; 39(10): 23–26.
3. Jiang Z, He H, Wu W, et al. Study on surface treatment of titanium dioxide nano particles and dispersion behavior thereof. China Synthetic Fiber Industry 2003; 26(3): 12–14.
4. Yao C, Gao G, Lin X, et al. Surface modification of nanosized TiO2 with silane coupling reagent. Journal of Inorganic Materials 2006; 21(2): 315–321.
5. Damme HV, Hall WK. Photoassisted decomposition of water at the gas-solid interface on titanium dioxide. Journal of the American Chemical Society 1979; 101(15): 4373–4374.
6. Ketteler G, Ogletree DF, Bluhm H, et al. In situ spectroscopic study of the oxidation and reduction of Pd (III). Journal of the American Chemical Society 2005; 127(51): 18269–18273.
7. Wang X, Li J, Kamiyama H, et al. Wavelength sensitive photocatalytic degradation of methyl orange in aqueous suspension over iron (III)-doped TiO2 nanopowders under UV and visible light irradiation. The Journal of Physical Chemistry B 2006; 110(13): 6804–6809.
8. Zou J, Liu C, Zhang Y. Control of the metal-support interface of NiO-loaded photocatalysts via cold plasma treatment. Langmuir 2006; 22(5): 2334–2339.
9. Irie H, Watanabe Y, Hashimoto K. Nitrogen-concentration dependence on photocatalytic activity of TiO2-xNx powders. The Journal of Physical Chemistry B 2003; 107(23): 5483–5486.
10. Yu J, Ho W, Yu J, et al. Efficient visible-light-induced photocatalytic disinfection on sulfur-doped nanocrystalline titania. Environmental Science & Technology 2005; 39(4): 1175–1179.
11. Luo H, Takata T, Lee Y, et al. Photocatalytic activity enhancing for titanium dioxide by co-doping with bromine and chlorine. Chemistry of Materials 2004; 16(5): 846–849.
12. Ghosh HN. Charge transfer emission in coumarin 343 sensitized TiO2 nanoparticle: A direct measurement of back electron transfer. The Journal of Physical Chemistry B 1999; 103(47): 10382–10387.
13. Ghosh HN, Asbury JB, Lian T. Direct observation of ultrafast electron injection from coumarin 343 to TiO2 nanoparticles by femtosecond infrared spectroscopy. The Journal of Physical Chemistry B 1998; 102(34): 6482–6486.
14. Ghosh HN, Asbury JB, Weng Y, et al. Interfacial electron transfer between Fe(II)(CN)64– and TiO2 nanoparticles: Direct electron injection and nonexponential recombination. The Journal of Physical Chemistry B 1998; 102(50): 10208–10215.
15. Xiao Z, Tan S, Zou Y, et al. Study on the effect of α-allyl on luminescence properties of rare earth complexes with acetylacetone. Spectroscopy and Spectral Analysis 2004; 24(1): 18–20.
16. Liu W, Tan M, Wang X, et al. Study on the ternary coordination compounds of lanthanide elements with 1, 10-phenanthroline-N-oxide and acetylacetone. Acta Chimica Sinica 1990; 48(11): 1090–1095.
17. Guo Q, Zhu W. Synthesis and characterization of the mixed ligand complexes of rare earth with 1, 1,1-trifluoroacetylacetone and 4-picoline-N-oxide. Chinese Journal of Synthetic Chemistry 2001; 9(2): 138–141.
18. Yang H, Wang Z, Yu X, et al. Study on the fluorescence spectra of complexes of Eu(Ⅲ)-acetylacetonate doped complexes. Journal of Shanghai Normal University (Natural Sciences) 2003; 32(1): 53–56.
19. Tang P, Wang M, Wang Z, et al. Research developments in semiconductor TiO2 catalyst and its organic photosensiting. Materials Review 2003; 17(10): 33–36.
20. Fei X, Lin R, Wang W, et al. Progress in research on visible light response TiO2 photocatalyst. Chemical Industry Times 2007; 21(2): 60–62.
21. Yu X, Cheng J, Yang Y, et al. Effects of rare earth oxide doping on the photocatalytic activities of TiO2. Journal of East China University of Science and Technology (Natural Science Edition) 2000; 26(3): 287–289.
22. Huang Y, Li D, Fu X. Preparation of TiO2 doped with rare earth ions and study on its photocatalytic activity. Journal of Minjiang University 2005; 26(5): 48–50.
23. Lu W, Wang D, He X, et al. Catalytic degradation of rhodamine B in TiO2 doped with gadolinium or two rare earth elements in visible light. Journal of the Chinese Rare Earth Society 2007; 25(4): 427–431.
24. Liu G. Rare earth acetylacetone complex (in Chinese). Chinese Rare Earths 1986; 7(2): 13–19.
25. Wu H, Wang X, Zhao H, et al. Synthesis and electrochemical properties of lanthanum and praseodymium triacetylacetonate. Chinese Rare Earths 2001; 22(6): 63–65.
26. Hoard JL, Silverton JV. Stereochemistry of discrete eight-coordination I basic analysis. Inorganic Chemistry 1963; 2(2): 235–242.
27. Li P, Yuan F. A study of the preparation of titanium dioxide photocatalysts. Journal of Suzhou University of Science and Technology (Natural Science) 2008; 25(4): 31–35.
28. Huang C. Rare earth coordination chemistry (in Chinese). Beijing: Science Press; 1997.
29. Hu Y, Chen X, Wu S. Physical chemistry (in Chinese). 2nd ed. Beijing: Higher Education Press; 1983.
DOI: https://doi.org/10.24294/ace.v5i1.1400
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