Preparation, characterization and evaluation of catalytic activity of titania modified with silver and bentonite

Dinh Bang Nguyen; Thi Dieu Cam Nguyen; Thanh Phuong Dao; Hung Thuan Tran; Van Noi Nguyen; Dae Hee Ahn

Journal of Industrial and Engineering Chemistry, Vol.18, No.5, 1764-1767, September, 2012

DOI10.1016/j.jiec.2012.04.004 Export Citation

Preparation, characterization and evaluation of catalytic activity of titania modified with silver and bentonite

Dinh Bang Nguyen, Thi Dieu Cam Nguyen^{1, †}, Thanh Phuong Dao, Hung Thuan Tran², Van Noi Nguyen, and Dae Hee Ahn³

Faculty of Chemistry, Hanoi University of Science, Vietnam National University, Hanoi, Viet Nam, Vietnam
¹Faculty of Chemistry, Quy Nhon University, Viet Nam, Vietnam
²Advanced Materials Technology Center, National Center for Technological Progress, Hanoi, Viet Nam, Vietnam
³Department of Environmental Engineering and Biotechnology, Myongji University, Republic of Korea

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The aim of this study is to evaluate phenol degradation capability of silver modified titanium dioxide nanomaterial on bentonite support (Ag-TiO2/Bent). The material was synthesized as photocatalyst by adding Ag-TiO2 sol into bentonite suspension. The experimental results revealed that photooxidation activity of Ag-TiO2/Bent was greatly higher than that of Ag-TiO2 and TiO2/Bent. The phenol removal efficiency was 23.25%, 35.41% and 98.94% for Ag-TiO2, TiO2/Bent and Ag-TiO2/Bent, respectively. The dispersion of silver modified TiO2 on bentonite support significantly enhances photocatalytic activity under solar radiation due to surface plasmon resonance formation and prevention of anatase-to-rutile phase transformation.

Keywords:Titanium dioxide;Silver;Bentonite;Photocatalyst;Visible light

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[Referenced By]

[1] Thiruvenkatachari R, Vigneswaran S, Moon IS, Korean J. Chem. Eng., 25(1), 64 (2008)

[2] Park CY, Lee YG, Oh C, Oh SG, J. Ind. Eng. Chem., 16(1), 32 (2010)

[3] Sakthivel S, Janczarek M, Kisch H, J. Phys. Chem. B, 108(50), 19384 (2004)

[4] Seery MK, George R, Floris P, Pillaib SC, Journal of Photochemistry and Photobiology A., 189, 258 (2007)

[5] Kubacka A, Colon G, Fernandez-Garcia M, Appl. Catal. B: Environ., 95(3-4), 238 (2010)

[6] Umebayashi T, Yamaki T, Tanaka S, Asai K, Chem. Lett., 32(4), 330 (2003)

[7] Coleman HM, Chiang K, Amal R, Journal of Chemical Engineering., 65, 113 (2005)

[8] Yun HJ, Lee H, Joo JB, Kim ND, Kang MY, Yi J, Appl. Catal. B: Environ., 94(3-4), 241 (2010)

[9] Irie H, Shibanuma T, Kamiya K, Miura S, Yokoyama T, Hashimoto K, Appl. Catal. B: Environ., 96(1-2), 142 (2010)

[10] Nahar MS, Hasegawa K, Kagaya S, Science and Technology of Advanced Materials., 8, 286 (2007)

[11] Zhang QW, Wang J, Yin S, Sato T, Saito F, J. Am. Ceram. Soc., 87(6), 1161 (2004)

[12] Sobana N, Selvam K, Swaminathan M, Sep. Purif. Technol., 62(3), 648 (2008)

[13] Kamat PV, J. Phys. Chem. B, 106(32), 7729 (2002)

[14] Jacob M, Levanon H, Kamat PV, Nano Letters., 3, 353 (2003)

[15] Bae E, Choi W, Environmental Science and Technology., 37, 147 (2003)

[16] Herrmann JM, Tahiri H, Aitichou Y, Lassaletta G, Gonzalezelipe AR, Fernandez A, Appl. Catal. B: Environ., 13(3-4), 219 (1997)

[17] Zhao G, Kozuka H, Yoko T, Thin Solid Films, 277(1-2), 147 (1996)

[18] Yao Y, Li G, Ciston S, Lueptow RM, Gray KA, Environmental Science and Technology., 142, 4952 (2008)

[19] Lin HM, Kao ST, Lin KM, Chang JR, Shyu SG, J. Catal., 224(1), 156 (2004)

[20] Sokmen M, Allen DW, Akkas F, Kartel N, Acar F, Water, Air, and Soil Pollution., 132, 153 (2001)

[21] Sung-suh HM, Choi JR, Hah HJ, Koo SM, Bae YC, Journal of Photochemistry and Photobiology A., 163, 37 (2004)

[22] Chao HE, Yun YU, Xingfang HU, Larbot A, Journal of the European Ceramic Society., 23, 1457 (2003)

[23] Falaras P, Arabatzis IM, Stergioulos T, Bernard MC, International Journal of Photoenergy., 5, 123 (2003)

[24] Zhang LZ, Yu JC, Yip HY, Li Q, Kwong KW, Xu AW, Wong PK, Langmuir, 19(24), 10372 (2003)

[25] Panpranot J, Kontapakdee K, Praserthdam P, J. Phys. Chem. B, 110(15), 8019 (2006)

[26] Liqiang J, Xiaojun S, Weimin C, Zili X, Yaoguo D, Honggang F, Journal of Physics and Chemistry of Solids., 64, 615 (2003)

[27] Price NJ, Reitz JB, Madix RJ, Solomon EI, Journal of Electron Spectroscopy and Related Phenomena., 98-99, 257 (1999)

[28] Koci K, Mateju K, Obalova L, Krejcikova S, Lacny Z, Placha D, Capek L, Hospodkova A, Solcova O, Appl. Catal. B: Environ., 96(3-4), 239 (2010)

[29] Devi LG, Reddy KM, Appl. Surf. Sci., 256(10), 3116 (2010)