Sonocatalytic Degradation of Rhodamine B in the Presence of TiO2 Nanoparticles by Loading WO3

Ze-Da Meng; Sourav Sarkar; Lei Zhu; Kefayat Ullah; Shu Ye; Won-Chun Oh

Korean Journal of Materials Research, Vol.24, No.1, 6-12, January, 2014

DOI10.3740/MRSK.2014.24.1.6 Export Citation

Sonocatalytic Degradation of Rhodamine B in the Presence of TiO2 Nanoparticles by Loading WO3

Ze-Da Meng^{1, 2}, Sourav Sarkar^{2, 2}, Lei Zhu^{2, 2}, Kefayat Ullah^{2, 2}, Shu Ye^{2, 2}, and Won-Chun Oh^{2, 2, †}

¹Jiangsu Key Laboratory of Environmental Functional Materials, College of Chemistry and Bioengineering, Suzhou University of Science and Technology, Suzhou 215009, China, Korea
²Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungnam-do 356-706, Korea

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In the present work, WO3 and WO3-TiO2 were prepared by the chemical deposition method. Structural variations, surface state and elemental compositions were investigated for preparation of WO3-TiO2 sonocatalyst. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and transmission electron microscopy (TEM) were employed for characterization of these new photocatalysts. A rhodamine B (Rh.B) solution under ultrasonic irradiation was used to determine the catalytic activity. Excellent catalytic degradation of an Rh.B solution was observed using the WO3-TiO2 composites under ultrasonic irradiation. Sonocatalytic degradation is a novel technology of treating wastewater. During the ultrasonic treatment of aqueous solutions sonoluminescence, cavitaties and “hot spot” occurred, leading to the dissociation of water molecules. In case of a WO3 coupled system, a semiconductor coupled with two components has a beneficial role in improving charge separation and enhancing TiO2 response to ultrasonic radiations. In case of the addition of WO3 as new matter, the excited electrons from the WO3 particles are quickly transferred to TiO2 particle, as the conduction band of WO3 is 0.74 eV which is .0.5 eV more than that of TiO2. This transfer of charge should enhance the oxidation of the adsorbed organic substrate. The result shows that the photocatalytic performance of TiO2 nanoparticles was improved by loading WO3.

Keywords:WO3;ultrasonic;TEM;sonocatalyst;UV-Vis

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[1] Chen X, Mao SS, Chem. Rev., 107(7), 2891 (2007)

[2] Burda C, Lou Y, Chen X, Samia A, Stout J, Gole J, Nano Lett., 3(8), 1049 (2003)

[3] Dalrymple OK, Stefanakos E, Trotz MA, Goswami DY, Appl. Catal. B: Environ., 98(1-2), 27 (2010)

[4] Akurati KK, Vital A, Dellemann JP, Michalow K, Graule T, Fetti D, Baiker A, Appl. Catal. B: Environ., 79(1-2), 53 (2008)

[5] Somasundaram S, Tacconi N, Chenthamarakshan CR, Rajeshwar K, J. Electroanal. Chem., 57(2), 167 (2005)

[6] Meng ZD, Zhu L, Choi JG, Park CY, Oh WC, Nanoscale. Res. Let., 6, 459 (2011)

[7] Wang J, W, Sun, Zhang ZH, Xing ZQ, Xu R, Li RH, Li Y, Zhang XD, Ultrason. Sonochem., 15(4), 301 (2008)

[8] Kubo K, Matsuoka K, Takahashi A, Shibasaki-Kitakawa, Yonemoto T, Ultrason. Sonochem., 12(4), 263 (2005)

[9] Ke D, Liu H, Peng T, Liu X, Dai K, Mater. Lett., 62, 447 (2008)

[10] Zhang XW, Zhou MH, Lei LC, Carbon, 43(8), 1700 (2005)

[11] Chen SF, Chen L, Gao S, Cao GY, Powder Technol., 160(3), 198 (2005)

[12] Bertus LM, Carcel RA, Duta A, Environ. Eng. Manage. J., 17(10), 1021 (2011)

[13] Liu H, Dong XN, Wang XC, Sun CC, Li JQ, Zhu ZF, Chem. Eng. J., 230(1-3), 279 (2013)

[14] Xu P, XU T, LU J, Gao SM, Hosmane NS, Huang BB, Dai Y, Wang YB, Energy Environ. Sci., 3(8), 1128 (2010)

[15] Bagwasi S, Tian BZ, Zhang JL, Nasir M, Chem. Eng. J., 217(5), 108 (2013)

[16] Cheng P, Yang Z, Wang H, Cheng W, Chen MX, Shangguan WF, Ding GF, Int. J. Hydrog. Energy, 37(3), 2224 (2012)

[17] Carcel RA, Andronic L, Duta A, J. Nanosci. Nanotechnol., 11(10), 9095 (2011)

[18] Segura Y, Molina R, Martinez F, Melero JA, Ultrason. Sonochem., 16(3), 417 (2009)

[19] Entezari MH, Sharif Al-Hoseini Z, Ultrason. Sonochem., 14(5), 599 (2007)

[20] Saien J, Delavari H, Solymani AR, J. Hazar. Mate., 177(1-3), 1031 (2010)

[21] Wang N, Zhu LH, Wang MQ, Wang DL, Tang HQ, Ultrason. Sonochem., 17(1), 78 (2010)

[22] Wang J, Jiang Z, Zhang LQ, Kang PL, Xie YP, Lv YH, Xu R, Zhang XD, Ultrason. Sonochem., 16(2), 225 (2009)

[23] Tryba B, Piszcz M, Morawski AW, Int. J. Photoenergy., 01, 15 (2009)

[24] Abrams BL, Wilcoxon JP, Crit. Rev. Solid. State. Mater. Sci., 30(3), 153 (2005)