PENGARUH KONSENTRASI (NH4)2SO4 TERHADAP KARAKTERISTIK TiO2 HASIL SINTESIS DENGAN METODE SOL GEL
DOI:
https://doi.org/10.17146/jsmi.2015.16.4.4224Keywords:
TiO2, N,S-codoping, Degradasi, Energi band gap, FotokatalitikAbstract
TiO2 anatase telah berhasil disintesis dengan metode sol-gel menggunakan prekursor titanium klorida (TiCl4) dalam berbagai konsentrasi (2,0 M- 6,0 M) (NH4)2SO4. Penelitian ini bertujuan untukmengetahui pengaruh konsentrasi garam (NH4)2SO4 terhadap karakteristik TiO2 hasil sintesis, seperti ukuran partikel, luas permukaan, band gap dan kinerja fotokatalitik TiO2 terhadap degradasi methylene blue. Karakterisasi TiO2 hasil sintesis dilakukan dengan menggunakan alat X-Ray Diffractometer (XRD) untuk mengetahui fasa yang terbentuk, Transmission Electron Microscope (TEM) untuk menentukan ukuran partikel, surface area analyzer untuk mengukur luas permukaan, UV-Visible Diffuse Reflectance Spectroscopy (UV-Vis DRS) untuk menentukan nilai energi gap, dan UV-Vis Lambda 25 untuk menentukan konsentrasi methylene blue. Hasil karakterisasi menunjukkan bahwa Ti2O hasil sintesis telah terdoping oleh atom N dan S, berbentuk kristalin dengan fasa anatase, ukuran partikel berkisar 5 nm hingga 15 nm, dan nilai energi band gap bervariatif dari 2,44 eV hingga 3,03 eV. Konsentrasi (NH4)2SO4 optimum dicapai pada (NH4)2SO4 4,0 M, dan pada konsentrasi tersebut Ti2O yang diperoleh dapat mendegradasi senyawa methylene blue 10 mg/L hingga 92%dengan konsentrasi katalis 1 g/L.
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References
. D. O. Scanlon, C. W. Dunnill, J. Buckeridge, et al.,“Band Alignment of Rutile and Anatase TiO2”, Nature Materials, vol. 12, pp. 798-801, 2013.
. M. Abdullah, Pengantar Nanosains, Penerbit, Bandung, 2009.
. C. Dette, M.A. Pérez-Osorio, C. S. Kley, et al., “TiO2 Anatase with a Bandgap in the Visible Region”, Nano Lett., vol. 14 (11), pp. 6533-6538, 2014.
. A. L. Stepanov, “Applications of ion implantation for modification of TiO2: a review”, Rev.Adv. Mater.Sci., vol. 30, pp. 150-165, 2012.
. Asha, S. L. Goyal, D. Kumar, et al., “Synthesis and Charaterization of Polyaniline/TiO2 Composites”, Indian Journal of Pure and Applied Physics, vol. 52, pp. 341-347, May 2014.
. F. Wang, J. Xu, S. Lin, et al., “Effects of NH4 +and Cl- on Preparation of Nanocrystallin TiO2 by Hydrothermal Method”, Springer Science + Business Media, Nov. 2012.
. H. Nishikiori, M. Hayashibe, and T. Fujii, “Visible Light-Photocatalytic of Sulfate-doped Titanium Dioxide Prepared by the Sol-gel Method”, Catalyst. vol. 3, pp. 363-377, 2013.
. I. I. Lebedeva, I. P. Sizeneva, D. M. Kisel’kov, et al., “Study of the Effect of Ammonium Sulfate Additives on the Structure and Photocatalytic Activity of Titanium Dioxide”, Russian Journal of Applied Chemistry, vol. 87, issue 5, pp. 547-554, May 2014.
. S. Wardiyati, A. Fisli dan S. H. Dewi, “Sintesis Nanokatalis TiO2Anatase dalam Larutan Elektrolit dengan Metoda Sol-gel”, Jurnal Sains Materi Indonesia, vol. 15, no. 3, pp. 153-157,April 2014.
. H. Nishikiori, M. Hayashibe and T. Fujii, “Visible Light-Photocatalytic Activity of Sulfate-Doped Titanium Dioxide Prepared by the Sol Gel Method”, Catalysts 3, pp 363-377, 2013.
. S. J. Darzi, A. R. Mahjoub and S. Sarfi, “VisibleLight-Active Nitrogen Doped TiO2 Nanoparticles Prepared by Sol gel Acid Catalyzed Reaction”, Iranian Journal of Materials Science & Engineering, vol. 9, no. 3, September 2012.
. J. Yu, M. Zhou, X. Zhao, “Preparation, Characterization and Photocatalytic Activity of In situ N,S-codoped TiO2 Powder”, Journal of Molecular Catalysis A:Chemical, vol. 246, pp. 176-184, 2006.
. J. Ju, X. Chen, Y. Shi, et al., “Hydrothermal Preparation and Photo-catalytic Performance of N, S-doped Nanometer TiO2 Under Sunlight Irradiation”, Journal of Powder Technology, vol. 237, pp. 616-622, 2013.
. R. Rahimi, M. Rabbani, S. S. Moghaddam, “Application of N,S-Codoped TO2 Photocatalyst
for Degradation of Methylene Blue”, 16th International Electronic Conference on Synthetic Organik Chemistry (ELSOC-16), 1-30 November 2012.
. J. Dharma,A. Pisal, “Simple Method of Measuring the Band Gap Energy Value of TiO2 in Powder form Using a UV/Vis/NIR Spectrometer,Aplication Note UV/Vis/NIR Perkin Elmer”. Available : : w w w . p e r k i n e l m e r . c o m / . . . / a p p uvvisnirmeasurebandgapenergyvalue [Apr. 3, 2013].
. T.P. Dhanya and S. Sugunan, “Preparation, Characterizaion and Photocatalytic Activity of N Doped TiO2 ”, IQSR Journal of Applied Chemistry, vol. 4, issue 3, pp. 27-33, 2013.
. Y. Yalçýn, M. Kýlýç and Z. Çýnar, “The Role of Non-Metal Doping in TiO2 Photocatalysis”, J. Adv. Oxid. Technol., vol. 13, no. 3, pp. 281-296, 2010.
. F. Amano, E. Ishinaga and A. Yamakata, “Effect of Particle Size on Photocatalytic Activity of WO3 Particles for Water Oxidation”, J. Phys. Chem. C, vol. 117, no. 44, pp. 22584-22590, 2013.
. Z. R. Ismagilov, L. T. Tsykoza, N. V. Shikina, et al., “Synthesis and Stabilization of Nano-sized Titanium Dioxide”, Russian Chemical Reviews, vol. 78, no. 9, 2009.
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