Photocatalytic Degradation of Endocrine Disruptor Compounds in Water over Immobilized TiO2 Photocatalysts

Document Type: Research Article

Authors

1 Institute of Environmental Technology and Faculty of Metallurgy and Material Engineering, VŠB - Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava – Poruba, Czech Republic

2 Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 532 10 Pardubice, Czech Republic

3 Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, Prague 2 121 16, Czech Republic

4 Institute of Chemical Process Fundamentals CAS, Rozvojová 135, Prague, Czech Republic

5 Faculty of Chemistry, Maria Curie-Skłodowska University (UMCS), Pl. M. Curie-Skłodowskiej 5, 20-031 Lublin, POLAND

Abstract

Recently, the fate of endocrine disruptors in environmentally relevant samples has attracted considerable attention. Semiconductor photocatalysis may offer an appealing methodology to treat such contaminants. In this respect, the simultaneous degradation of synthetic hormones employing UV irradiation and TiO2 as the photocatalyst were investigated. Our interest was focused on designing a photocatalytic reactor and finding a way to immobilize a powder photocatalyst by water-glass. The nanofiber powder photocatalyst NnF Ceram TiO2 was chosen as powder photocatalysts based on TiO2. The material was characterized by N2 adsorption/desorption, XRD, UV-Vis spectrometry, and TEM. The reaction kinetics of hormone decomposition corresponds to a first-order reaction rate. It was shown that progesterone and all types of estradiols were decomposed most effortlessly in the presence of NnF Ceram TiO2 photocatalysts. On the other hand, the lowest conversion was reached for estrone and estriol. The photocatalysts based on TiO2 immobilized by water-glass seems to be promising for photocatalytic water purification.

Keywords

Main Subjects


[2] Kravčík M., Pokorný J., Kohutiar J., Kováč M., Tóth E., “Voda Pre Ozdravenie Klímy-Nová Vodná Paradigm”, Krupa Print, Žilina (2007).

[3] European Water Charter

[4] Zhang X.J., Chen C., Lin P.F., Hou A.X., Niu Z.B., Wang J., Emergency Drinking Water Treatment During Source Water Pollution Accidents in China: Origin Analysis, Framework and Technologies. Environ. Sci. Technol. 45: 16 –167 (2010).

[6] Tabata A., Kashiwada S., Ohnishi Y., Ishikawa H., Miyamoto N., Itoh M., Magara Y. Estrogenic Influences of 17-Estradiol, p-Nonylphenol and Bisphenol A on Japanese Medaka (Oryzias latipes) at Detected Environmental Concentrations, Water Sci. Technol. 43: 109–116 (2001).

[7] Fujishima, A., Honda, K., Electrochemical Photolysis of Water at a Semiconductor Electrode, Nature 288: 37–38 (1972).

[8] Watanabe, T., Super Hydrophilic Photocatalyst and Its Application, Bul. Ceram. Soc. Jpn., 31: 837–840 (1996).

[9] Kottegoda I.R.M., Colomboge H.C.D.P., Karunadasa K.S.P., Samarawickrama D.S., Manorathne C.H., An Efficient Reactor for Purification of Domestic Water Using Solar Energy, Int. J. Energy Eng., 3: 93-98 (2013).

[10] Ollis D.F., Photocatalytic Purification and Treatment of Water and Air, Comptes Rendus de l'Academie des Sci. - Series IIC – Chem., 3, 405–411 (2000).

[11] Gültekin I., Ince N.H., Synthetic Endocrine Disruptors in the Environment and Water Remediation by Advanced Oxidation Processes,J. Environ. Manag., 85: 816–832 (2007).

[12] Scardi P., Leoni M., Whole Powder Pattern Modelling Acta Crystallogr. Sect. A: Found. Crystallogr. 58: 190-200 (2002).

[13] Matěj Z., Kužel R., MStruct – Program / Knihovna Pro Mikrostruktury Analýzu Pomocí Praškové Difrakce. Available Online At: http://www.xray.cz/mstruct/ (2009).

[14] Matěj Z., Kužel R., Nichtová L., XRD Total Pattern Fitting Applied to Study of Microstructure of TiO2 Films, Powder Diff., 25(2): 125–131 (2010).

[16] Krystyník P., “Photochemical and Photocatalytic Oxidation Processes in Liquid Phase”: Thesis. VŠCHT, Prague (2015).

[17] Nakaruk A., Ragazzon D., Sorrell C.C., Anatase–Rutile Transformation Through High-Temperature Annealing of Titania Films Produced by Ultrasonic Spray Pyrolysis, Thin Solid Films, 518: 3735–3742 (2010).

[18] Vijayalakshmi R., Rajendran K.V., Effect of K+ Doping on the Phase Transformation of TiO2 Nanoparticles. Adv. in Technol. of Materials and Materials Proc., 12(1): 25-30 (2010).

[19] Sun Ch.H., Yang X.H., Chen J.S., Li Z., Lou X.W., Li Ch., Smith S.C., Lu (Max) G.Q., Yang H.G., Higher Charge/Discharge Rates of Lithium-Ions Across Engineered TiO2 Surfaces Leads to Enhanced Battery Performance, Chem. Commun., 46: 6129-6131 (2010).

[20] Cui J., Sun D., Zhou W., Liu H., Hu P., Ren N., Qin H., Huang Z., Lina J., Ma H., Electrocatalytic Oxidation of Nucleobases by TiO2 Nanobelts, Phys. Chem. 13: 9232–9237 (2011).

[21] Chu L., Li L., Su J., Tu F., Gao N.L.Y., 2013. A General Method for Preparing Anatase TiO2 Treelike-Nanoarrays on Various Metal Wires for Fiber Dye-Sensitized Solar Cells, Sci. Rep., 4: 4420 (2013).

[22] Moschet, CH., ibp.ethz.ch. Available Online at:

[24] Bolton J.R., Bircher K.G., Tumas W., Tolman C.A., Figures-of-Merit for the Technical Development and Application of Advanced Oxidation Technologies for Both Electric-and Solar-Driven Systems, Pure Apl. Chem., 73: 627–637 (2001).