BibTex Citation Data :
@article{YPJ5938, author = {Hanum Yuda Aditya and Heri Sutanto}, title = {ANALISIS SIFAT OPTIK LAPISAN TIPIS BILAYER ZnO/TiO2 YANG DIDEPOSISIKAN MENGGUNAKAN METODE SOL-GEL SPRAY COATING DAN APLIKASINYA SEBAGAI FOTODEGRADASI ZAT WARNA}, journal = {Youngster Physics Journal}, volume = {3}, number = {3}, year = {2014}, keywords = {}, abstract = { ZnO/TiO 2 bilayer thin films have been deposited on a glass substrate by using sol-gel method with spin coating technique. The quality of films deposited on buffer layer is found to be superior to those grown directly on a substrate. The ability of photodegradation of ZnO/TiO 2 was observed through the dye test by various molarities of ZnO solution. ZnO sol was prepared by dissolving zinc acetate dehydrate into a solvent of isopropanol then add monoethanolamine and stirred for 30 min at 70°C. For preparing TiO 2 sol, titanium tetraisopropoxide is first dissolved in a mixture containing isopropanol and ethanol at room temperature. Then after 30 min stirring, the sol was titrated with a mixture of acetic acid, ethanol and deionized water. The process was followed by 60 min at room temperature. ZnO sol as a first layer is first deposited on a glass substrate and then proceed TiO 2 sol on it, for the both deposition was heated at 450 o C. The optical properties of ZnO/TiO 2 bilayer thin films was characterized by using spectrophotometer UV-Vis. The results showed that the molarity of the ZnO sol affects the optical properties of ZnO/TiO 2 bilayer thin films. The band gap energy of the ZnO/TiO 2 bilayer thin films with different molarity of ZnO sol respectively 0,1 M, 0,3 M, 0,5 M and 0,7 M has been measured about 3,21 eV, 3,27 eV, 3,32 eV and 3,36 eV. The results of the photodegradation test of the ZnO/TiO 2 bilayer thin films have been able degrade methylene blue up to 99,85%, methyl orange 50,68% and batik’s dye 49,87%. Keywords : sol-gel, spray coating, photocatalist, ZnO/TiO 2 , band gap energy }, issn = {2302-7371}, pages = {223--230} url = {https://ejournal3.undip.ac.id/index.php/bfd/article/view/5938} }
Refworks Citation Data :
ZnO/TiO2 bilayer thin films have been deposited on a glass substrate by using sol-gel method with spin coating technique. The quality of films deposited on buffer layer is found to be superior to those grown directly on a substrate. The ability of photodegradation of ZnO/TiO2 was observed through the dye test by various molarities of ZnO solution. ZnO sol was prepared by dissolving zinc acetate dehydrate into a solvent of isopropanol then add monoethanolamine and stirred for 30 min at 70°C. For preparing TiO2 sol, titanium tetraisopropoxide is first dissolved in a mixture containing isopropanol and ethanol at room temperature. Then after 30 min stirring, the sol was titrated with a mixture of acetic acid, ethanol and deionized water. The process was followed by 60 min at room temperature. ZnO sol as a first layer is first deposited on a glass substrate and then proceed TiO2 sol on it, for the both deposition was heated at 450oC. The optical properties of ZnO/TiO2 bilayer thin films was characterized by using spectrophotometer UV-Vis. The results showed that the molarity of the ZnO sol affects the optical properties of ZnO/TiO2 bilayer thin films. The band gap energy of the ZnO/TiO2 bilayer thin films with different molarity of ZnO sol respectively 0,1 M, 0,3 M, 0,5 M and 0,7 M has been measured about 3,21 eV, 3,27 eV, 3,32 eV and 3,36 eV. The results of the photodegradation test of the ZnO/TiO2 bilayer thin films have been able degrade methylene blue up to 99,85%, methyl orange 50,68% and batik’s dye 49,87%.
Keywords: sol-gel, spray coating, photocatalist, ZnO/TiO2, band gap energy
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