Effect of toluene, an immiscible pollutant, on the photocatalytic degradation of azo dye

Mohsin Nawaz; Dongwoo Kim; Waheed Miran; Avinash Kadam; Jun Heo; Seolhye Shin; Jiseon Jang; Seong-Rin Lim; Dae Sung Lee

Journal of Industrial and Engineering Chemistry, Vol.30, 10-13, October, 2015

DOI10.1016/j.jiec.2015.05.010 Export Citation

Effect of toluene, an immiscible pollutant, on the photocatalytic degradation of azo dye

Mohsin Nawaz, Dongwoo Kim, Waheed Miran, Avinash Kadam, Jun Heo, Seolhye Shin, Jiseon Jang, Seong-Rin Lim^{1, †}, and Dae Sung Lee^†

Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 702-701, Republic of Korea
¹Department of Environmental Engineering, Kangwon National University, Chuncheon 200-701, Republic of Korea

E-mail:,

An adverse effect of a water-immiscible pollutant, toluene, on the photocatalytic degradation of Direct Red 80 (DR80) with TiO2 in an aqueous solution was observed when toluene was added as a continuous free layer. However, a more efficient photocatalytic system was obtained when toluene was added in the Pickering emulsion (PE) form with TiO2. With only UV and two different types of TiO2 (more hydrophilic and large-sized type A TiO2 and less hydrophilic and small-sized type B TiO2), 44% and 59% color removal was observed, respectively. Almost 20% decrease in color removal with toluene in the continuous free layer form was observed, however, the higher color removal was obtained when toluene was added as PE stabilized with type B TiO2 than with type A TiO2. The higher color removal was owing to the good stability of PE stabilized with type B TiO2.

Keywords:Direct Red 80;Pickering emulsion;Photocatalytic degradation;TiO2;Toluene

[References]

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Bachinger A, Kickelbick G, Monatshefte Fur Chemie - Chem. Mon., 141, 685 (2010)
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[Referenced By]

[1] Byberg R, Cobb J, Martin LD, Thompson RW, Camesano TA, Zahraa O, Pons MN, Environ. Sci. Pollut. Res., 20, 3570 (2013)

[2] Hao OJ, Kim H, Chiang PC, Crit. Rev. Environ. Sci. Technol., 30, 449 (2000)

[3] Vinodgopal K, Wynkoop DE, Kamat PV, Environ. Sci. Technol., 30, 1660 (1996)

[4] Moradi O, Gupta VK, Agarwal S, Tyagi I, Asif M, Makhlouf ASH, Sadegh H, Shahryari-ghoshekandi R, J. Ind. Eng. Chem. (2015)

[5] Meunprasertdee P, Chotisuwan S, SUT E, 17, 203 (2010)

[6] Ramteke LP, Gogate PR, J. Ind. Eng. Chem., 1 (2015)

[7] Davis RJ, Gainer JL, Neal GO, Wu I, Davis J, Water Environ. Res., 66, 50 (2011)

[8] Florencio J, Pacheco MJ, Lopes A, Ciriaco L, Port. Electrochim. Acta, 31, 257 (2013)

[9] Mahmoodi NM, Arami M, Limaee NY, Tabrizi NS, Chem. Eng. J., 112(1-3), 191 (2005)

[10] Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)

[11] Lee HU, Lee G, Park JC, Lee YC, Lee SM, Son B, Park SY, Kim C, Lee S, Lee SC, Nam B, Lee JW, Bae DR, Yoon JS, Lee J, Chem. Eng. J., 240, 91 (2014)

[12] Bachinger A, Kickelbick G, Monatshefte Fur Chemie - Chem. Mon., 141, 685 (2010)

[13] Sacanna S, Kegel WK, Philipse AP, Phys. Rev. Lett., 98, 158301 (2007)

[14] Turchi C, J. Catal., 122, 178 (1990)

[15] Tang WZ, Zhang Z, An H, Quintana MO, Torres DF, Environ. Technol., 18, 1 (1997)

[16] Tang WZ, Huang CP, Water Res., 29, 745 (1995)