Photocatalytic performance of titania nanospheres deposited on graphene in coumarin oxidation reaction

• Autorzy: Wojtoniszak M. , Zielinska B. , Kalenczuk R. J. , Mijowska E.
• Języki publikacji: EN

Abstrakty

EN

In this paper, we present a study on enhanced photocatalytic performance of TiO2 nanospheres deposited on graphene (n-TiO2-G) in a process of coumarin oxidation. The enhancement of the photoactivity has been observed in respect to commercial TiO2 P25. The presented material was prepared in two steps: (i) hydrolysis of titanium (IV) butoxide (TBT) in ethanol solution with simultaneous deposition on graphene oxide (GO) and (ii) calcination of TiO2-GO to form anatase-TiO2 and reduce GO to graphene. The nanomaterial was characterized by transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), Fourier-Transformed Infrared spectroscopy and Raman spectroscopy. In the presented photocatalytic process the fluorescence was used to detect-OH formed on a photo-illuminated n-TiO2-G surface using coumarin which readily reacted with -OH to produce highly fluorescent 7-hydroxycoumarin.

Słowa kluczowe

EN

graphene; TiO2; photocatalyst; coumarin

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2012
• Tom: Vol. 30, No. 1
• Strony: 32--38
• Opis fizyczny: Bibliogr. 33 poz.

Twórcy

autor

Wojtoniszak M.

autor

Zielinska B.

autor

Kalenczuk R. J.

autor

Mijowska E.

• West Pomeranian University of Technology, Szczecin, Institute of Chemical and Environment Engineering, Pulaskiego 10, 70-322 Szczecin, Poland

Bibliografia

• [1] TARANTO J., FROCHOT D., PICHAT P., Sep. Pur.Techn., 67 (2009), 187.
• [2] PEKAKIS P.A., XEKOUKOULOTAKIS N.P.,MANTZAVINOS D., Wat. Res., 40 (2006), 1276.
• [3] SUBRAMANIAN V.E., WOLF E., KAMAT P.V., J.Am. Chem. Soc., 126 (2004), 4943.
• [4] HWAJIN K., WONYONG C., Appl. Cat. B: Environ.,69 (2007), 127.
• [5] KAMAT P.V., Pure Appl. Chem., 74 (2002), 1693.
• [6] HUANG J., WANG X., HOU Y., CHEN X., WU L.,WANG X., FU X., Microporous and Mesoporous Mat.,110 (2008), 543.
• [7] GEIM A.K., NOVOSELOV K.S., Nat. Mat., 6(2007), 183.
• [8] LI X.L., WANG X.R., ZHANG L., LEE S.W., DAIH.J., Science, 319 (2008), 1229.
• [9] BALANDIN A.A. et al., Nano Lett., 8 (2008), 902.
• [10] LEE C., WEI X.D., KYSAR J.W., HONE J.,Science, 321 (2008), 385.
• [11] WANG X., ZHI L.J., MULLEN K., Nano Lett. 8, 323(2008).
• [12] CHEN S., ZHU J., WU X., HAN Q., WANG X., Acs Nano, 4 (2010), 2822.
• [13] CHANG Y. et al., Toxicol. Lett., 200 (2011), 201.
• [14] YOO D.H. et al., Curr. Appl. Phys., 11 (2011), 805.
• [15] ZHANG X.Y., LI H.P., CUI X.L., Chin. J. Inorg.Chem., 25 (2009), 1903.
• [16] WANG Y., SHI R., LIN J., ZHU Y., Appl. Cat. B:Environ., 100 (2010), 179.
• [17] ZHANG H., LV X., LI Y., WANG Y., LI J., Acs Nano, 4 (2010), 380.
• [18] GUO J., ZHU S., CHEN Z., LI Y., YU Z., LIU Q.,LI J., FENG C., ZHANG D., Ultrason. Sonochem., 18(2011), 1082.
• [19] WANG F., ZHANG K., J. Mol. Cat. A: Chem., 345(2011), 101.
• [20] ZHANG Y., PAN CH., J. Mater. Sci., 46 (2011), 2622.
• [21] KAMEGAWA T., YAMAHANA D., YAMASHITA H., J. Phys. Chem. C, 114 (2010), 15049.
• [22] XU T., ZHANG L., CHENG H., ZHU Y., Appl.Catal. B., 101 (2011), 382.
• [23] MARCANO D.C. et al., Acs Nano, 4 (2010), 4806.
• [24] WOJTONISZAK M., ZIELINSKA B., CHEN X.,KALENCZUK R.J., BOROWIAK-PALEN E., J.Mater. Sci., 47 (2012), 3185.
• [25] JEONG H.K., LEE Y.P., JIN M.H., KIM E.S., BAE J.J., LEE Y.H., Chem. Phys. Lett., 470 (2009), 258.
• [26] LAZAR G., ZELLAMAA K., VASCAN I.,STAMATE M., LAZAR I., RUSU I., J. Optoelectr.and Adv. Mat., 7 (2005), 647.
• [27] WANG G., WANG B., PARK J., YANG J., SHEN X., YAO J., Carbon, 47 (2009), 68.
• [28] KUMAR P.M., BADRINARAYANAN S., SASTRY M., Thin Solid Films, 358 (2000), 122.
• [29] MEROUANI A., AMARDIJA-ADNANI H.,International Scientific Journal for Alternative Energy and Ecology, 6 (2008), 151.
• [30] OHSAKA T., J. Phys. Soc. Jpn., 48 (1980), 1661.
• [31] FERRARI A.C., ROBERTSON J., Phys. Rev. B, 61(2000), 14095.
• [32] XIANG Q., YU J., WONG P.K., J. Colloid Interf.Sci., 357 (2011), 163.
• [33] ISHIBASHI K., FUJISHIMA A., WATANABE T.,HASHIMOTO K., Electrochem. Commun., 2 (2000),207.