AKTIVITAS FOTOKATALIS TiO2 DAN TiO2/ZnO YANG DIDEPOSISIKAN DIATAS SUBTRAT KACA MENGGUNAKAN METODE SOL-GEL SPRAY COATING

Wilda Amananti

Abstract


Pada penelitian ini telah dipelajari penggunaan ZnO pada TiO2untuk memperbaiki kemampuan fotokatalis TiO2 terhadap degradasi Methyleneblue. Larutan prekursor TiO2 dan TiO2/ZnO dideposisikan menggunakan metode sol-gel Teknik Spray Coating. Zinc acetate dehydrate (Zn(COOCH3)2.2H2O dilarutkan ke dalam pelarut isopropanol ((CH3)2CHOH) kemudian ditambahkan monoethanolamine (MEA: HOCH2CH2NH2). Larutan diaduk pada temperatur 70oC hingga didapatkan larutan yang jernih dan homogen. Titanium Tetraisopropoxide (TTIP) 0,73 ml dilarutkan ke dalam 4,27 ml isopropanol dan 20 ml etanol. Setelah itu larutan dititrasi dengan 5 ml etanol, 3,4 ml acetic acid, dan 0,26 ml H2O, kemudian diaduk di atas hot plate stirrer pada temperature ruang (25oC) . Selanjutnya gel prekursor TiO2 dan TiO2/ZnO disemprotkan pada substrat kaca yang dipanaskan pada temperatur 450°C, pengujian sifat optik lapisan tipis dilakukan menggunakan alat Spektrofotometer UV-Vis. Aktivitas fotokatalis diuji pada degradasi Methyleneblue. Penggabungan TiO2 dengan ZnO (TiO2/ZnO) yang ditumbuhkan langsung di atas kaca menghasilkan celah pita energi yang lebih kecil dari pada TiO2 dan meningkatkan kemampuan fotokatalis  dari lapisan tipis. Lapisan tipis TiO2/ZnO memiliki kemampuan fotokatalis yang lebih baik daripada lapisan tipis TiO2


Keywords


Fotokatalis, energy ikat, gap TiO2, ZnO

Full Text:

PDF

References


Akasaki, I., Amano, H., Koide, Y., Hiramatsu, K, dan Sawaki N ,1989. Effects of buffer layer on crystallographic structure and on electrical and optical properties of GaN and Ga1-xAlxN (0x0.4) films grown on sapphire substrate by MOVPE. Journal.Crystal Growth, 98, 209.

Akin, M.B. dan Oner M, 2013.Photodegradation of Methylene Blue with Sphere-Like ZnO Particles Prepared Via Aqueous Solution. Ceramics International 39 9759–9762.

Ali, M dan Hassan,S,H, 2008. Degradation Studies on Paraquat And Malathion Using TiO2/ZnO Based Photocatalyst. The Malaysian Journal of sciences Vol. 12 No 1.

Lanje, S,A., Sharma, J,S., Ningthoujam, S.R., Ahn, dan Pode, B,R, 2013. Low temperature dielectric studies of zinc oxide (ZnO) nanoparticles prepared by precipitation method.Advanced Powder Technology 24 (2013) 331–335.

Ardizzone, S., Gabrielli, G, dan Lazzari, P, 1993.Adsorption of Methylene Blue at Solid / Liquid and Water / Air Interfaces, Colloids Surfaces.vol. 76 hal.149–157.

Arutanti, O., Abdullah M., Khairurrijal, dan Mahfudz H, 2009. Penjernihan Air Dari Pencemar Organik dengan Proses Fotokatalis pada Permukaan Titanium Dioksida (TiO2).Jurnal nanosains dan Nanoteknologi Edisi khusus,ISSN 1979-088V.

Baruah, S., Samir, K.P, dan Joydeep, D, 2012.Nanostructured Zinc Oxide for Water Treatment.Nanoscience & Nanotechnology-Asia, Vol. 2, No. 2.

Cho, M.H dan Lee,G.H, 2008. Growth of high quality rutile TiO2 thin film using ZnO buffer layer on Si(100) substrate. Thin Solid Films 516 (2008) 5877–5880.

Chunxia, L., Suihu, D., Caili Z., Liping W, dan Peide H, 2014. Effects of native defects on the electronic structure and photocatalyticactivity in anatase TiO2by first principles calculations.Optik 125 3145–3149.

Day, R.A, dan Underwood, A.L, 2002. Analisis Kimia Kuantitatif. alih bahasa Pudjatmaka, A.H., Erlangga, Jakarta, hal. 390-392.

Diebold, U, 2003.The Surface Science of Titanium Dioxide.Surface science reports 48 52-229.

Effendy, 2004.Ikatan Ionik dan Cacat-Cacat pada Kristal Ionik. Malang: Bayumedia Publishing.

Gibson, R. F, 1984. Pinsiple of Composite Material Mechanics. New York: Mc Graw Hill.

Ortega, R,D., Meléndez, M, A, dan Pena, A,P, 2014. Semiconducting properties of ZnO/TiO2composites byelectrochemical measurements and their relationship withphotocatalytic activit.Electrochimica Acta 140 541–549.

Khan, A,F., Mehmood, M, dan Durrani, S,K, 2015. Structural and optoelectronic properties of nanostructured TiO2 thin films with annealing. Materials Science in Semiconductor Processing 29161–16.

Fatimah, I. dan Karna, W, 2005.Sintesis TiO2/Zeolit sebagai Fotokatalis pada Pengolahan Limbah Cair Industri Tapioka secara Adsorpsi-Fotodegradasi.Jogjakarta: TEKNOIN, vol. 10 No. 4 hal. 257-267.

Firdaus, C.M., Rizam M.S.B.S., Rusop M., dan Hidayah S.R, 2012. Characterization of ZnO and ZnO:TiO2 Thin Films Prepared by Sol-Gel Spray-Spin Coating Technique. Procedia Engineering 41 1367 – 1373.

Giannakopoulou, G., Todorova, N., Giannouri, M., Yu, J, dan Trapalis, C, 2014.Optical and photocatalytic properties of composite TiO2/ZnOthin films. Catalysis Today 230 174–180.

Gu, Y.Z, 2013. Optical and Microstructural Properties of ZnO/TiO2 Nanolaminates Prepared by Atomic Layer Deposition. Nanoscale Research Letters 2013 8:107.

Guanglong, Z, 2007. Orientation Enhancement of Polycrystalline ZnO Thin Films Through Thermal. Elsevier Materials Letters61: p. 4305–4308.

Ivanova, T., Harizanova A., Koutzarova T, dan Vertruyen B, 2011.Preparation and Characterization of ZnO/TiO2 Films Obtained by Sol-gel Method.Journal of Non-Crystalline Solids 375 2840-2845.

Jain, A., Sagar P, dan Mehra R.M, 2007. Changes of Structural, Optical and Electrical Properties of Sol-Gel Derived ZnO Films with Their Thickness.Materials Science Poland Vol. 25 No. 1.

Kaur, S., Singh, V, 2007.Visible light inducing sonophotocatalytic degradation of reactive red dye 198 using dye sensitized TiO2. Ultrason.Sonochem. 14 531–537.

Kaya, M, dan Atici, Y, 2004. Studies of lattice mismatch and threading dislocations in GaAs/Si grown by MBE. Superlattices and Microstructures 35 (2004) 35–44.

Khopkar, S.M ,2002. Konsep Dasar Kimia Analitik, Terjemahan Basic Concepts of Analytical Chemistry. Penerbit Universitas Indonesia, Jakarta.

Kittel, C, 1996. Introduction to Solid State Physics 7thEdition. New York: John Wiley and Sons, Inc.

Marotti, R.E., Giorgi, P., Machado, G, dan Dalchiele, E.A, 2006. Crystallite size dependence of band gap energy for electrodeposited ZnO grown at different Temperatures. Solar Energy Materials & Solar Cells 90 (2006) 2356–2361.

Mekkawi, D,E, dan Galal, H,R,2013. Removal of a synthetic dye “Direct Fast Blue B2RL” via adsorption andphotocatalytic degradation using low cost rutile and Degussa P25 titaniumdioxide.Journal of Hydro-environment Research 7 219-226.

Milton, W,G.2002. The Theory of Composite. New York: Cambrige Univercity Press.

Mukhidin, 2014. Deposisi Lapisan Tipis Fotokatalis Zno:TiO2 Untuk Degradasi Polutan Organik Limbah Cair, Skripsi, jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang.

Shi-qian, L., Pei-jiang,Z., Wan-shun, Z., Sheng, C, dan Hong, P, 2014. Effective photocatalytic decolorization of methylene blue utilizing ZnO/rectorite nanocomposite under simulated solar irradiation. Journal of Alloys and Compounds 616 227–234.

Ningsih, T.S, 2012.Sintesis dan Karakterisasi Fotokatalisis Ni2+ - ZnO Berbasis Zeolit Alam.FakultasTeknik.Universitas Indonesia.

Pant, H.R., Pant B., Sharma R.K., Amarjargal A., Kim H.J., Park C.H., Tijing L.D, dan Kim C.S, 2013. Antibacterial and Photocatalytic Properties of Ag/TiO2/ZnO Nano-Flowers Prepared by Facile One-Pot Hydrothermal Process. Ceramics International 39 1503–1510.

Peng, L.P., Fang, L., Wu , W.D., Wang , X.M, dan Wang, Y.Y, 2012. The structure and optical properties of ZnO films on various LiNbO3 substrates. Vacuum 86 (2012) 1147-1149.

Priowirjanto, G, 2003. Ilmu Bahan Listrik. Jakarta: Dikmenjur.

Pusvitasari, M, 2013.Deposisi Lapisan Tipis Zinc Oxide (ZnO) di atas Substrat Kaca dengan Metode Sol-Gel untuk Aplikasi Degradasi Warna, Skripsi, jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Semarang.

Rahmawati, Fitria, Sayekti, W, dan Pamularsih, A.W,2006.Synthesis of Thin Film of TiO2 on Graphite Substrate by Chemical Bath Deposition, Indo. J. Chem. 6 (2), 121-126.

Shukla, S., Sharma.K,N, dan Sajal, V, 2015. Sensitivity enhancement of a surface plasmon resonance based fiber optic sensor using ZnO thin film, a theoretical study. Sensors and Actuators B 206 (2015) 463–470.

Sartono, A. A, 2006.Scanning Electron Microscope (SEM), Departemen Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia.

Scarlat, F, dan Niculescu. 2010.Methylene-Blue Modified Polypirrole Film Elektrode for Optoelectronic Application. vol. 256 hal. 4543–4547.

Sujana, M.G., Chattopadyay, K.K, dan Anand, S ,2008. Characterization and Optical Properties of Nano-Ceria Synthesized by Surfactant-Mediated Precipitation Technique in Mixed Solvent System.Applied Surface Science 254, Science Direct, 7405–7409.

Sulzer, 2013.An Introduction to Thermal Spray, Metco, Issue 4.

Talebian, N., Nilforoushan, dan Salehi Z ,2012. Effect of Heterojunction on Photocatalytic Properties of Multilayered ZnO-Based Thin Films.Ceramics International vol. 38 hal. 4623–4630.

Tanti , H., Novita, A, dan Siti, M , 2014. Pengaruh suhu sol-gel dan pelarut polyetilen glycol (peg) pada aktivitas fotokatalis zno-tio2 sebagai pendegradasi limbah cair pewarna tekstil.jurnal penelitian kimia, vol. 10, no. 2, hal. 148-156.

Takashi., Kiyoshi., Yoshikawa., Alkihiko., Sandu, dan Adarsh, 2007. Wide Bandgap Semiconductor: Fundamental Properties and Modern Photonic and Electronic Devices. Springer.P. 357.ISBN 3540472347.

Tian, J., Chen L., Yin Y., Wang X, Dai J., Zhu Z., Liu X, dan Wu P, 2009. Photocatalyst of TiO2/ZnO Nano Composite Film: Preparation, Characterization, and Photodegradation Activity of Methyl Orange. Surface & Coatings Technology 204 205–214.

Tian, J., Wang J., Dai J., Wang X., dan Yin Y, 2009. N-Doped TiO2/ZnO Composite Powder and Its Photocatalytic Performance for Degradation of Methyl Orange. Surface & Coatings Technology 204 723–730.

Topkaya, E., Mehmet, K, dan Cengiz, 2014. Pure ZnO and Composite ZnO/TiO2 Catalyst Plates: A Comperative Sstudy for Degradation of Ozo, Pesticide and Antibiotic in Aqueous Solution. Journal of Colloid and Interface Science 430 6-11.

Trisnawati, T, 2008. Studi Adsorpsi Karbon Mesopori Sintetik terhadap Methylene Blue, Bandung: FMIPA ITB.

Tucker, R. C. Jr, 1994. Thermal Spray Coatings. ASM Handbook, Volume 5: Surface Engineering, 497-509.

Liu, W.S., Chen, W., Zhao, S, dan Zhang, 2009. Study on the photocatalytic degradation of trichlorfon in suspension of titanium dioxide. Desalination 249 1288–1293.

West, R.A,1984.Solid State Chemistry and Its Application, John Wiley & Sons Ltd, New York.

Xu, L., Zheng G., Wu H., Wang J., Gu F., Su J., Xian F, dan Liu Z, 2013. Strong Ultraviolet and Violet Emissions from ZnO/TiO2 Multilayer Thin Films. Optical Materials 35 1582–1586.

Xue-wen, W., Li Z, dan Feng L, 2013.ZnO Disks Loaded with Reduced Graphene Oxide for the Photodegradation of Methylene Blue. New Carbon Materials, 28(6):408–413.

Hao Lin, Y., Ying Lee, H., Ting Lee,C, dan Chou, C, 2012. Mechanisms of ZnO buffer layer in bottom gate ZnO:Al transparent thin film transistors. Materials Chemistry and Physics 134 (2012) 1203-1207.

Zhao. D. G., Xu, S. J., Xie M. H, dan Tong, S. Y, 2003. Stress and its effect on optical properties of GaN epilayers grown on Si(111), 6H-SiC(0001), and c-plane sapphire.Applied Physics Letters Volume 83, Number 4.

Zhao, L., Xia, M., Liu, Y., Zheng, B., Jiang, Q, dan Lian,J, 2012. Structure and Photocatalysis of TiO2/ZnO Double-Layer Film Prepared by Pulsed Laser Deposition. Materials Transactions, Vol. 53, No. 3 (2012) pp. 463 to 468.

Zhang, W., Zhao J., Liu Z., Zhaojun L, dan Fu Z, 2010.Influence of Growth Temperature of TiO2 Buffer on Structure and PL Properties of ZnO Films.Applied Surface Science 256 4423–4425.

Zhang, X., ShuyiM ., Yang, F.,Zhao, Q., Li,F, dan Liu,J, 2013. The evolutionbehaviorofmicrostructuresandopticalpropertiesofZnO films usingaTibufferlayer. Ceramics International39(2013)7993–7999.




DOI: http://dx.doi.org/10.24905/psej.v1i1.492

Refbacks

  • There are currently no refbacks.


Copyright (c) 2016 PSEJ (Pancasakti Science Education Journal)

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.