SINTESIS KOMPOSIT ZnO-BENTONIT dan PENGGUNAANNYA DALAM PROSES DEGRADASI METHYL ORANGE
Abstract
ABSTRAK: Penelitian ini bertujuan untuk menentukan kondisi optimum proses degradasi methyl orange dengan menggunakan komposit ZnO-bentonit. Komposit ZnO-bentonit telah disintesis melalui proses sonikasi menggunakan ultrasonic batch selama 3 jam. Komposit tersebut dikarakterisasi menggunakan FTIR, XRD dan SEM, dan kemudian diaplikasikan sebagai fotokatalis dalam proses degradasi methyl orange menggunakan iradiasi sinar UV. Kondisi optimumnya didapat pada pH 5, konsentrasi komposit ZnO-bentonit sebesar 10 g/L dan waktu iradiasi selama 15 menit. Pada kondisi optimum tersebut, dihasilkan degradasi methyl orange menggunakan komposit ZnO-bentonit sebesar 56,71±0,65%.
ABSTRACT: This research aims to determine the optimum conditions of degradation of methyl orange by using ZnO-Bentonite composite. ZnO-bentonite composite had been synthesized through sonicationby using ultrasonic batch for 3 hours. The particles were characterized by FTIR, XRD and SEM, and then applied as photocatalyst for degradation of methyl orange with UV irradiation. The optimum conditions were obtained at pH 5, composite concentration of 10 g/L, and irradiation time of 15 minutes. The result showed that at the optimum conditions, the percentage of degradation of methyl orange by using ZnO-bentonit composite was 56,71±0,65%.
Downloads
References
[2] Lian, L., Guo L., and Guo C., 2009, Adsorption of Congo Red from Aqueous Solutions onto Ca-bentonite, Journal of Hazardous Materials 161: 126–131.
[3] Al-heetimi, D. T. A., Dawood, A. H., Khalaf, Q. Z., Himdan, T. A., 2012, Removal of Methyl orange From Aqueous Solution By Iraqi Bentonite Adsorbent, Ibn Al-Haitham Journal for Pure and Applied Science, 25 (2) : 328-339.
[4] Cent, G. and S. Perathone,2009, One-step H2O2 and Phenol Syntheses: Examples of Challenges for New Sustainable Selective Oxidation Processes, Catal, Today, 143 (1–2) : 145–150.
[5] Hoffmann, M. R., Martin, S. T., Choi, W., and Bahnemannt, D.W., 1995, Environmental Applications of Semiconductor Photocatalysis,Chem. Rev., 95: 69-96.
[6] Syukri, D., Aziz, H., dan Alif, A., 2008, Seng Oksida (ZnO) Sebagai Fotokatalis Pada Proses Degradasi Senyawa Biru Metilen, Jurnal Ris.Kimia, 1 (2) : 179-186.
[7] Diantariani, N.P., Widihati, I.A.G., dan Ratih M.I.G.A.A., 2014, Fotodegradasi Metilen Biru dengan Sinar Ultraviolet dan Katalis ZnO, Jurnal Kimia 8 (1) : 137-143.
[8] Chen, C., Liu, J., Liu, P., and Yu, B., 2011, Investigation of Photocatalytic Degradation of Methyl Orange by Using Nano-Sized ZnO Catalysts, Advances in Chemical Engineering and Science, 1 : 9-14.
[9] Xu, H., Yu, T., Liu, J., 2014, Photo-degradation of Acid Yellow 11 in Aqueous on Nano-ZnO/Bentonite Under Ultraviolet and Visible Light Irradiation, Materials Letters, 117 : 263-265.
[10] Al-Jobouri, I. S., Dhahir, S. A., and Al-Saade, K. A., 2013, Adsorption Study of Rhodamin B Dye on Iraqi Bentonite and Modified Bentonite by Nanocompounds TiO2, ZnO, Al2O3, and Sodium Dodecyl Sulfate, American Journal Of Environmental Science, 9 (3) : 269-279.
[11] Meshram, S., Limaye, R., Ghodke, S., Nigam S., Sonawane, S., and Chikate, R., 2011, Continuous Flow Photocatalytic Reactor Using ZnO-bentonite Nanocomposite for Degradation of Phenol, J. Chem. Engineering, 172 : 1008-1015.
[12] Saraswati, I. G. A. A., Diantariani, N. P., dan Suarya, P., 2015, Jurnal Kimia, 9 (2) : 175-182.
[13] Yulianti, C. H., 2012, Sintesis dan Karakterisasi Kristal Nano ZnO, Jurnal Teknika, 4 (2).
[14]Fazmar, A. F., 2009, Sintesis dan Karakterisasi ZnO-Bentonit Serta Aplikasinya Sebagai Fotokatalis, Skripsi, Universitas Indonesia, Depok.
[15] Apollo, S., Moyo, S., Mabuoa, G., and Aoyi, O., 2014, Solar Photodegradation of Methyl Orange and Phenol Using Silica Supported ZnO Catalyst, International Journal of Innovation, Management, and Technology, 5 (3) : 203-206.
[16] Susilawati, 2014, Adsorpsi Zat Warna Biru Metilena oleh Lempung Bentonit Aktif, Jurnal Ris.Kimia, 7 (2) : 169-173.
[17] Niu, P., 2012, Photocatalytic Degradation of Methyl Orange i Aqueous TiO2 Suspensions, Asian Journal of Chemistry, 25 (2) : 1103-1106.
[18] Widiantini, N. L. P., 2010, Fotodegradasi Congo Red dengan Sinar UV, Katalis ZnO, dan Oksidator H2O2, Skripsi, Universitas Udayana, Denpasar.
Petunjuk Penulisan
