Photocatalytic degradation of ammonia by light expanded clay aggregate (LECA)-coating of TiO2 nanoparticles

Masoud Zendehzaban; Shahram Sharifnia; Seyed Nezamedin Hosseini

Korean Journal of Chemical Engineering, Vol.30, No.3, 574-579, March, 2013

DOI10.1007/s11814-012-0212-z Export Citation

Photocatalytic degradation of ammonia by light expanded clay aggregate (LECA)-coating of TiO2 nanoparticles

Masoud Zendehzaban, Shahram Sharifnia¹, and Seyed Nezamedin Hosseini^{2, †}

Faculty of Engineering, Islamic Azad University, South Tehran Branch, Tehran, Iran
¹Catalyst Research Center Chemical Engineering Department, Razi University, Kermanshah 67149-67246, Iran
²Research and Production Complex, Pasteur Institute of Iran, Tehran, Iran

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Photocatalytic degradation of ammonia on supported TiO2 nanoparticles was investigated. The TiO2 nanoparticles used as photocatalyst were coated on light expanded clay aggregate granules (LECA), which is a porous and light weight support. Photocatalytic reaction activity of prepared catalyst was determined by ammonia degradation from water synthetically polluted with ammonia. Experiment results showed significantly high photocatalytic activity for the immobilized catalysts. The ammonia was removed more than 85% within 300 min of the process with optimum calcinations temperature 550 ℃ and pH 11. Kinetics of the photocatalytic reaction followed a pseudo-first order model. XRF, XRD and SEM analyses revealed a rather uniform coating of TiO2 on the support. By using floated TiO2/LECA as a photocatalyst in aqueous solution of NH3, the ammonia was photodegraded into N2 and H2 gases, while NO2- and NO3- were formed at very low concentrations.

Keywords:Wastewater;Photocatalyst;Ammonia;TiO2;LECA

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[Referenced By]

[1] Netting J, Nature., 406, 928 (2008)

[2] Yuzawa H, Mori T, Itoh H, Yoshida H, J. Phys. Chem. C., 116, 4126 (2012)

[3] Saha D, Deng SG, J. Chem. Eng. Data, 55(12), 5587 (2010)

[4] ShuHu X, Hui QJ, Xu Z, Juan LH, Jin WD, Water Res., 43, 1432 (2009)

[5] Bonsen EM, Schroeter S, Jacobs H, Broekaert JAC, Chemosphere., 35, 1431 (1997)

[6] Lee DK, Environ. Sci. Technol., 37, 5745 (2003)

[7] Ahmed FN, Lan CQ, Desalination., 287, 41 (2012)

[8] Bonmati A, Flotats X, Waste Manage., 23, 261 (2003)

[9] Ricardo AR, Carvalho G, Velizarov S, Crespo JG, Reis MAM, Water Res., 46, 4556 (2012)

[10] Pressley TA, Bishop DF, Roan SG, Environ. Sci. Technol., 6, 622 (1972)

[11] Wang Y, Qu J, Wu R, Lei P, Water Res., 40, 1224 (2006)

[12] Zhu XD, Castleberry SR, Nanny MA, Butler EC, Environ.Sci. Technol., 39, 3784 (2005)

[13] Fujishima A, Honda K, Nature., 238, 37 (1972)

[14] Kalyanasundaram K, Graetzel M (Eds.), Photosensitization and photocatalysis using inorganic and organometallic compounds, Kluwer Academic Publishers, Dordrecht (1993)

[15] Fujishima A, Hashimoto K, Watanabe T, TiO2 photocatalysis fundamental and applications, BKC Inc., Tokyo (1999)

[16] Kaneko M, Okura I (Eds.),, Photocatalysis Science and Technology, Kodansha/Springer (2002)

[17] Jafarzadeh NK, Sharifnia S, Hosseini SN, Rahimpour F, Korean J. Chem. Eng., 28(2), 531 (2011)

[18] Choi W, Lee J, Kim S, Hwang S, Lee MC, Lee TK, J. Ind. Eng. Chem., 9(1), 96 (2003)

[19] Taguchi J, Okuhara T, Appl. Catal. A: Gen., 194-195, 89 (2000)

[20] Lee J, Park H, Choi W, Environ. Sci. Technol., 36, 5462 (2002)

[21] Zhu XD, Castleberry SR, Nanny MA, Butler EC, Environ.Sci. Technol., 39, 3784 (2005)

[22] Kim S, Choi W, Environ. Sci. Technol., 36, 2019 (2002)

[23] Karches M, Morstein M, von Rohr P, Pozzo RL, Giombi JL, Baltanas MA, Catal. Today, 72(3-4), 267 (2002)

[24] Lee JC, Kim MS, Kim BW, Water Res., 36, 1776 (2002)

[25] Horikoshi S, Watanabe N, Onishi H, Hidaka H, Serpone N, Appl. Catal., B37, 117 (2002)

[26] Martyanov IN, Klabunde KJ, J. Catal., 225(2), 408 (2004)

[27] Shang J, Li W, Zhu YF, J. Mol. Catal. A-Chem., 202(1-2), 187 (2003)

[28] Chen H, Lee SW, Kim TH, Hur BY, J. Eur. Ceram. Soc., 26, 2231 (2006)

[29] Ao CH, Lee SC, Yu JC, J. Photochem. Photobiol. A., 156, 171 (2003)

[30] Vohra MS, Tanaka K, Water Res., 37, 3992 (2003)

[31] Hosseini SN, Borghei SM, Vossoughi M, Taghavinia N, Appl. Catal. B: Environ., 74(1-2), 53 (2007)

[32] Haque N, Morrison G, Cano-Aguilera I, Gardea-Torresdey JL, Microchem. J., 88, 7 (2008)

[33] Dordio A, Carvalho AJP, Teixeira DM, Dias CB, Pinto AP, Bioresour. Technol., 101(3), 886 (2010)

[34] Amiri H, Jaafarzadeh N, Ahmadi M, Martinez SS, Desalination, 272(1-3), 212 (2011)

[35] Pioro LS, Pioro IL, Cement Concrete Compos., 26, 639 (2004)

[36] BETZ Laboratories Inc., BETZ Handbook of Industrial Water Conditioning, 9th Ed., BETZ Laboratories (1991)

[37] Arabatzis IM, Spyrellis N, Loizos Z, Falaras P, J. Mater. Process. Technol., 161, 224 (2005)

[38] Chan AHC, Porter JF, Barford JB, Chan CK, Water Sci.Technol., 44, 187 (2001)

[39] Vione D, Minero C, Maurino V, Carlotti AE, Picatonotto T, Pelizzetti E, Appl. Catal. B: Environ., 58(1-2), 79 (2005)