Abstract
In this study photocatalytic activity of the prepared nano-sized TiO2-based composite was tested by decolorisation/degradation of Methylene blue (MB) as a model pollutant under UV illumination. The composite was synthesized by a modified heterogeneous hydrolysis method in the presence of diatomite suspension by using TiCl4 as titania precursor. The photocatalyst was found to be very active for the photocatalytic decomposition of MB in aqueous solution. The percent decolorization in 60 min was 98% with initial MB concentration 53 mg/L. The photocatalytic activity was correlated with physico-chemical properties of the synthesized materials. There is a synergistic effect of grafting titanium dioxide onto the surface of diatomite: the photocatalytic activity of TiO2 dispersed on the diatomite surface vas found to be much higher than of the bulk titania mainly due to the high surface area and uniform distribution of TiO2 on clay mineral avoiding aggregation.
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References
Sobczyński, A., Dobosz, A.: Water purification by photocatalysis on semiconductors. Polish J. Env. Stud. 10(4), 195–205 (2001)
Lee, S.-K., Mills, A.: Detoxification of water by semiconductor photocatalysis. J. Ind. Eng. Chem. 10, 173–187 (2004)
Lachheb, H., Puzenat, E., Houas, A., et al.: Photocatalytic degradation of various types of dyes (Alizarin S, Crocein Orange G, Methyl Red, Congo Red, Methylene Blue) in water by UV-irradiated titania. Appl. Cat. B: Environ. 39, 75–90 (2002)
Šíma, J., Hasal, P.: Photocatalytic degradation of textile dyes in aTiO2/UV system. Chem. Eng. Trans. 32, 79–84 (2013)
Song, H., Jiang, H., Liu, X., Meng, G.: Nano TiO2 deposited on crude mineral and the photoactivity to the degradation of chloroform. Am. J. Env. Sci. 2(2), 60–65 (2006)
Rossetto, E., Petkowicz, D.I., dos Santos, J.H.Z., et al.: Bentonites impregnated with TiO2 for photodegradation of methylene blue. Appl. Clay Sci. 48, 602–606 (2010)
De Witte, K., Meynen, V., Mertens, M., et al.: Multi-step loading of titania on mesoporous silica: influence of the morphology and the porosity on the catalytic degradation of aqueous pollutants and VOCs. Appl. Cat. B: Environ. 84, 125–132 (2008)
Pucher, P., Benmami, M., Azouani, R., et al.: Nano-TiO2 sols immobilized on porous silica as new efficient photocatalyst. Appl. Cat. A: General 332(2), 297–303 (2007)
Zhang, G.K., Ding, X.M., He, F.S., et al.: Low-temperature synthesis and photocatalytic activity of TiO2 pillared montmorillonite. Langmuir 24(3), 1026–1030 (2008)
Wang, B., Zhang, G., Sun, Z., Zheng, S.: Synthesis of natural porous minerals supported TiO2 nanoparticles and their photocatalytic performance towards Rhodamine B degradation. Powder Technol. 262, 1–8 (2014)
Korunic, Z.: Diatomaceous earths, a group of natural insecticides. J. Stored Prod. Res. 34, 87–97 (1998)
Ilia, I.K., Stamatakis, M.G., Perraki, ThS: Mineralogy and technical properties of clayey diatomites from north and central greece. Cent. Eur. J. Geosci. 1(4), 393–403 (2009)
Mohamedbakr, H., Burkitbaev, M.: Elaboration and characterization of natural diatomite in Aktyubinsk Kazakhstan. Open Miner. J. 3, 12–16 (2009)
Bakr, H.E.G.M.: Diatomite: its characterization, modifications and applications Asian. J. Mater. Sci. 2(3), 121–136 (2010)
Goren, R., Baykara, T., Marsoglu, M.: Effects of purification and heat treatment on pore structure and composition of diatomite. Br. Ceramic. Trans. 101, 177–180 (2002)
Sun, Z., Bai, C., Zheng, S., et al.: A comparative study of different porous amorphous silica minerals supported TiO2 catalysts. Appl. Cat. A: General 458, 103–110 (2013)
Jia, Y., Hana, W., Guoxing, X., Weishen, Y.: Layer-by-layer assembly of TiO2 colloids onto diatomite to build hierarchical porous materials. J. Colloid Interface Sci. 323, 326–331 (2008)
Yu, C.L., Kang, Y., Zhao, W.: Preparation of nano-TiO2 immobilized onto diatomite micro-particles. Nanotech. Prec. Eng. 6(4), 254–260 (2008)
Wang, B., Condi de Godoi, F., Sun, Z., et al.: Synthesis, characterization and activity of an immobilized photocatalyst: natural porous diatomite supported titania nanoparticles. J. Colloid Interface Sci. 438, 204–211 (2015)
Toster, J., Harnagea, C., Iyer, K.S., et al.: Controlling anatase coating of diatom frustules by varying the binding layer. CrystEngComm 14, 3446–3450 (2012)
Дaцкo, T.Я., Зeлeнцoв, B.И.: Кoмпoзит нaнo-TiO2. диaтoмит: cинтeз, cтpyктypa и тepмocтoйкocть. ЭOM 3, 1–14 (2019)
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Datsko, T.Y., Zelentsov, V.I., Dvornikov, D.P. (2020). Photocatalytic Degradation of Methylene Blue with Composite Nanocrystalline TiO2+ Diatomite. In: Tiginyanu, I., Sontea, V., Railean, S. (eds) 4th International Conference on Nanotechnologies and Biomedical Engineering. ICNBME 2019. IFMBE Proceedings, vol 77. Springer, Cham. https://doi.org/10.1007/978-3-030-31866-6_30
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