Kinetics of Photocatalytic Degradation of Gaseous Organic Compounds on Modified TiO2/AC Composite Photocatalyst

Abstract

Abstract: This study is focused on the kinetic characteristics of photocatalytic degradation of gaseous organic compounds on modified titanium dioxide/activated carbon composite photocatalyst(MTA).The MTA,which co-doping with iron(Fe) and nitrogen(N),was synthesized by a sol-gel method,and its photocatalytic performance was investigated under different reaction conditions.The experimental data obtained were tested by the zero,first and second order kinetic model,and the factors affecting the kinetic model were analyzed.It was clearly demonstrated that the experimental data of toluene and acetone on MTA fit quite well with second order kinetic model equation,but the experimental data of formaldehyde fits well with zero order kinetic model equation.

Key words: titanium dioxide, activated carbon, photocatalyst, kinetic model

摘要： This study is focused on the kinetic characteristics of photocatalytic degradation of gaseous organic compounds on modified titanium dioxide/activated carbon composite photocatalyst(MTA).The MTA,which co-doping with iron(Fe) and nitrogen(N),was synthesized by a sol-gel method,and its photocatalytic performance was investigated under different reaction conditions.The experimental data obtained were tested by the zero,first and second order kinetic model,and the factors affecting the kinetic model were analyzed.It was clearly demonstrated that the experimental data of toluene and acetone on MTA fit quite well with second order kinetic model equation,but the experimental data of formaldehyde fits well with zero order kinetic model equation.

关键词: titanium dioxide, activated carbon, photocatalyst, kinetic model

YANG Qingshan, LIAO Yongjin, MAO Lingling. Kinetics of Photocatalytic Degradation of Gaseous Organic Compounds on Modified TiO₂/AC Composite Photocatalyst[J]. , 2012, 20(3): 572-576.

杨青山, 廖永进, 毛玲玲. Kinetics of Photocatalytic Degradation of Gaseous Organic Compounds on Modified TiO₂/AC Composite Photocatalyst[J]. , 2012, 20(3): 572-576.

References

1 Gaya, U.I., Abdullah, A.H., "Heterogeneous photocatalytic degradation of organic contaminants over titanium dioxide: A review of fundamentals, progress and problems", J. Photochem. Photobiol. C: Photochem. Rev., 9 (1), 1-12 (2008).
2 Tryba B., "Immobilization of TiO₂ and Fe-C-TiO₂ photocatalysts on the cotton material for application in a flow photocatalytic reactor for decomposition of phenol in water", J. Hazard. Mater., 151 (2-3), 623-627 (2008).
3 Sun, R.B., Xi, Z.G., Chao, F.H., Zhang, W., Zhang, H.S., Yang, D.F., "Decomposition of low-concentration gas-phase toluene using plasma-driven photocatalyst reactor", Atmos. Environ., 41 (32), 6853-6859 (2007).
4 El-Bahy, Z.M., Ismail, A.A., Mohamed, R.M., "Enhancement of titania by doping rare earth for photo degradation of organic dye (Direct Blue)", J. Hazard. Mater., 166 (1), 138-143 (2009).
5 Seery, M.K., George, R., Floris, P., Pillai, S.C., "Silver doped titanium dioxide nanomaterials for enhanced visible light photocatalysis", J. Photochem. Photobiol. A, 189 (2-3), 258-263 (2007).
6 Wu, P.X., Tang, J.W., Dang Z., "Preparation and photocatalysis of TiO₂ nanoparticles doped with nitrogen and cadmium", Mater. Chem. Phys., 103 (2-3), 264-269 (2007).
7 Zhang, X.W., Zhou, M.H., Lei, L.C., "Preparation of anatase TiO₂ supported on alumina by different metal organic chemical vapor deposition methods", Appl. Catal. A, 282 (1-2), 285-293 (2005).
8 Choi, W., Termin, A., Hoffmann, M.R., "The role of metal ion dopants in quantum-sided TiO₂ : Correlation between photoreactivity and charge carrier recombination dynamics", J. Phys. Chem., 98 (51), 13669-13679 (1994).
9 Sathish, M., Viswanathan, B., Viswanath, R.P., "Characterization and photocatalytic activity of N-doped TiO₂ prepared by thermal decomposition of Ti-melamine complex", Appl. Catal. B, 74 (3-4), 307-312 (2007).
10 Song, S., Tu, J.J., Xu, L.J., Xu, X., He, Z.Q., Qiu, J.P., Ni, J.G., Chen, J.M., "Preparation of a titanium dioxide photocatalyst codoped with cerium and iodine and its performance in the degradation of oxalic acid", Chemosphere, 73 (9), 1401-1406 (2008).
11 Mahalakshmi, M., Vishnu Priya, S., Arabindoo, B., Palanichamy, M., Murugesan, V., "Photocatalytic degradation of aqueous propoxur solution using TiO₂ and Hβ zeolite-supported TiO₂ ", J. Hazard. Mater., 161 (1), 336-343 (2009).
12 Plesch, G., Gorbár, M., Vogt, U., Jesenák, K., Vargová, M., "Reticulated macroporous ceramic foam supported TiO₂ for photocatalytic applications", Mater. Lett., 63 (3-4), 461-463 (2009).
13 Zhang, X.W., Zhou, M.H., Lei, L.C., "Enhancing the concentration of TiO₂ photocatalyst on the external surface of activated carbon by MOCVD", Mater. Res. Bull., 40 (11), 1899-1904 (2005).
14 Takashi, T., Mamoru, F., Tetsuro, M., "Mechanistic insight into the TiO₂ photocatalytic reactions: Design of new photocatalysts", J. Phys. Chem. C, 111 (14), 5259-5275 (2007).
15 Maruga, J., Grieken, R.V., Cassano, A.E., Alfano, O.M., "Intrinsic kinetic modeling with explicit radiation absorption effects of the photocatalytic oxidation of cyanide with TiO₂ and silica-supported TiO₂ suspensions", Appl. Catal., B: Environmental, 85 (1-2), 48-60 (2008).
16 Wang, W.Q., Zhang, Q.C., Jian, L., Liu, J.M., Wei, Y.H., "Preparation of regular TiO₂-carbide catalyst and its photocatalytic properties", Journal of Inner Mongolia University of Technology, 26 (4), 260-264 (2007). (in Chinese)
17 Dai, D.M., Zhou, J., Gao, H.T., "The advancement on nano-TiO₂ photocatalytic oxidation technology", Journal of Liaocheng University (Nat. Sic.), 20 (3), 56-60 (2007). (in Chinese)
18 Liao, D.L., Xiao, X.Y., Deng, Q., Zhang, H.P., Wan, C.X., "Study on kinetics of formaldehyde photocatalytic degradation on titanium dioxide", Environmental Protection of Chemical Industry, 23 (4), 191-194 (2003). (in Chinese)
19 Li, Y.J., Sun, S.G., Ma, M.Y., Ouyang, Y.Z., Yan, W.B., "Kinetic study and model of the photocatalytic degradation of rhodamine B (RhB) by a TiO₂-coated activated carbon catalyst: Effects of initial RhB content, light intensity and TiO₂ content in the catalyst", Chem. Eng. J., 142 (2), 147-155 (2008).
20 Yang, Q.S., Liao, Y.J., Xiao, X.Y., "Preparation of iron, nitrogen co-doped TiO₂/AC composite photo catalysts and their photo catalytic activities for degradation of gaseous pollutants", Materials Review, 25 (17), 62-67 (2011). (in Chinese)
21 Yin, Y.Q., Zheng, Y., Su, Y.C., Cui, Q., Cui, Z.J., "Reaction kinetics and mechanism of photocatalytic degradation of gaseous toluene", Chinese Journal of Process Engineering, 9 (3), 536-540 (2009). (in Chinese)
22 Zhang, J.C., Guo, K.M., Ma, L., Zhao, H.Y., "Reaction mechanisms for gas-phase photocatalytic degradation of benzene and butyraldehyde over TiO₂/AC composite photocatalyst", Chinese Journal of Catalysis, 27 (10), 853-856 (2006). (in Chinese)
23 Guo, T., Bai, Z.P., Wu, C., Zhu, T., "Influence of environmental humidity on the photocatalytic oxidation of toluene by TiO₂ Loaded on activated carbon fibers", Chinese Journal of Catalysis, 28 (12), 1089-1095 (2007). (in Chinese)
24 Li, B., Li, B.Z., Li, J., Liu, X., "Investigation of the influencing factors on ACF/TiO₂ photocatalytic degradation of formaldehyde", Sciencepaper Online, 3 (5), 347-350 (2008). (in Chinese)

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Kinetics of Photocatalytic Degradation of Gaseous Organic Compounds on Modified TiO₂/AC Composite Photocatalyst

Kinetics of Photocatalytic Degradation of Gaseous Organic Compounds on Modified TiO₂/AC Composite Photocatalyst

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