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Abstract

CuO/TS-1 catalysts have been prepared and tested in the benzene hydroxylation. TS-1 was synthesized by hydrothermal method, while CuO/TS-1 was prepared by impregnation method using Cu(NO)2.3H2O as precursor. Catalysts were characterized by using X-ray diffraction (XRD), infrared spectroscopy (IR), and N2 adsorption-desorption techniques. The catalytic activity was tested in the hydroxylation reaction of benzene. The products were analyzed using gas chromatography. Catalyst characterization by XRD and IR techniques have showed that the catalyst structure was a MFI type of zeolite. XRD pattern have showed the orthorombic structure and indicated the presence of CuO aggregation. The results of the pyridine adsorption have found that the acidity of TS-1 and CuO/TS-1 were a Lewis acid and it’s increased with an increasing amount of CuO loading. The results of nitrogen adsorption analysis have showed decreasing of surface areas of catalyst with increasing amount of CuO loading. The optimum conditions of benzene hydroxylation was observed by 1%CuO/TS-1 catalyst at 70 °C, reaction time 2 h and acetic acid as the solvent yielded 27.6% of phenol with phenol selectivity was 75.5%

References

[1] L. Yan, Ge. Hanging, Z. Changjiang, W. Jun, Biochem. Eng. J. 145 (2008) 335. [2] M.G. Clerici, In: R.A. Sheldon, H.V. Bekkum, (Eds.), Aromatic Ring Hydroxylation Oxidation, Fine Chemichals Through Heterogeneous Catalysis, Wiley-VCH, Weinheim, Federal Republic of Germany, 2001, p.538. [3] C. Jin, G. Li, X. Wang, Y. Wang, L. Zhao, D. Sun, Microporous Mesoporous Mat., 111 (2008) 236. [4] T. Miyake, M. Hamada, Y. Sasaki, M. Oguri, Appl. Catal. A-Gen. 131 (1995) 33. [5] J. Sun, X. Meng, Y. Shi, R. Wang, S. Feng, D. Jiang, R. Xu, Xiao, Chin. J. Catal. 193 (2000) 199. [6] K. Lemke, H. Ehrich, U. Lohse, H. Berndt, K. Jahnisch, Appl. Catal. A-Gen. 243 (2003) 41. [7] J.F. Bengoa, N.G. Gallegos, S.G. Marchetti, A.M. Alvarez, M.V. Cagnoli, A.A. Yeramian, Microporous Mesoporous Mat. 24 (1998) 163. [8] X. Gao, J. Xu, Appl. Clay Sci. 33 (2006) 1. [9] Y.G. Li, Y.M. Lee, J.F. Porter, J. Mat. Sci. 37 (2002)1959. [10] A. Gamba. G. Tabacchi, E. Fois, J. Phys. Chem. A 113 (2009) 15006. [11] G. Ovejero, , R. van Grieken, M.A. Uguina, D.P. Serrano, J.A. Melero, J. Mater. Chem. 8/10 (1998) 2269. [12] Mulyatun, Tesis M.Si, Jurusan Kimia, FMIPA, Institut Teknologi Sepuluh Nopember, Surabaya, 2009. [13] H. Kanzaki. T. Kitamura, R. Hamada, S. Nishiyama, S. Tsuruya, J. Mol. Catal. A-Chem. 208 (2004) 203. [14] T. Miyahara, H. Kanzaki, R. Hamada, S. Kuroiwa, S. Nishiyama, S. Tsuruya, J. Mol. Catal. A-Chem. 176 (2001) 141. [15] K.M. Parida, D. Rath, Appl. Catal. A-Gen. 321 (2007) 101. [16] J. Pan, C. Wang, G. Shipeng, J. Li, Z. Yang, Catal. Commun. 9 (2008) 176. [17] M. Taramasso, G. Perego, B. Notari, Preparation of Porous Crystalline Synthetic Material Comprised of Silicon and Titanium Oxides, U.S. Patents No. 4,410,501, 1983. [18] A. Bhaumik, P. Mukherjee, R. Kumar, Chin. J. Catal. 178 (1998) 101. [19] M.M.J. Treacy, J.B. Higgins, Collection of Simulated XRD Powder Patterns for Zeolites, 4th edition, Structure Commission of the International Zeolite Association, Elsevier, Amsterdam, 2001, p.367. [20] H. Gao, W. Lu, O. Chen, Microporous Mesoporous Mat. 34 (2000) 307. [21] M.C. Capel-Sanchez, V.A. dela Pena-O’Shea, L. Barrio, J.M. Compos-Martin, J.L.G. Fierro, Top. Catal. 41 (2006) 1. [22] R.S. Drago, S.C. Dias, J.M. McGilvray, A.L.M.L. Mateus, J. Phys. Chem. A 102 (1998) 1508. [23] M.R. Boccuti, K.M. Rao, A. Zecchina, G. Leofanti, G. Petrini, Stud. Surf. Sci. and Catal. 48 (1989) 133. [24] A. Thangaraj, R. Kumar, S.P. Mirajkar, P. Ratnasamy, Chin. J. Catal. 130 (1991) 1. [25] D. Prasetyoko, Z. Ramli, S. Endud, H. Nur, Mater. Chem. Phys. 93 (2005a) 443. [26] H. Nur, D. Prasetyoko, Z. Ramli, S. Endud, Catal. Commun. 5 (2004) 725. [27] H. Nur, Heterogeneous Chemocatalysis: Catalysis by Chemical Design, Ibnu Sina Institute for Fundamental Science Studies, University Teknologi Malaysia, Johor Bahru, 2006, p.158. [28] A. Reitzmann, E. Klemm, G. Emig, Chem. Eng. J. 90 (2002) 149. [29] P. Chammingkwan, W.F. Hoelderich, T. Mongkhonsi, P. Kanchanawanichakul, Appl. Catal. A-Gen. 352 (2009) 1. [30] F. Adam, R. Thankappan, Chem. Eng. J. 160 (2010) 249. [31] C.H. Baerlocher, W.M. Meier, D.H. Olson, Atlas of Zeolite Framework Types, 5th ed., Structure Commission of the International Zeolite Association, Amsterdam, 2001, p.356

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