BibTex Citation Data :
@article{YPJ9110, author = {Ndaru Adyono and Heri Sutanto and Iis Nurhasanah}, title = {STUDI PENGAPLIKASIAN EFEK FOTOKATALIS DARI LAPISAN ZnO:Ag TERHADAP DEGRADASI BAKTERI E.coli}, journal = {Youngster Physics Journal}, volume = {4}, number = {3}, year = {2015}, keywords = {ZnO:Ag, band gap energy, XRD, Uv-Vis, TPC, degradation rate.}, abstract = { Research in the field of green technology using photocatalyst materials can be a solution to environmental pollution, especially contamination of aquatic bacteria. These materials absorb energy from the sun and form hydroxyl radicals that kill bacteria. Zinc oxide has a high photocatalytic efficiency with E g 3 . 3 eV in the range of UV - visible light. ZnO can be modified by addition of silver in order to improve the effectiveness as well as anti-bacterial properties. ZnO:Ag 4% layers prepared with thermal spray coating method with deposition temperature at 250ºC and aneling temperature at 450 ºC. XRD measurements performed with CuKα radiation with wavelength at 1.54060 Å and the diffraction angle in range 20 ° - 70 °. The diffraction patterns were identified using the Crystallography Open D atabase (COD) and software QUALX. ZnO (Id 101-1259) phase and metal Ag (Id 151-2487) phase has formed, but there are also silver oxide phase AgO (Id 150-9488) and Ag 2 O (Id 150-9684). Crystallite size has been calculated using Debye-Scherrer equation resulted an average value 43 . 46 nm. The optical properties were measured using a UV-Vis spectrometer in the wavelength range 250-800 nm. Transmittance spectrum were converted into an absorbance spectrum using the Beer-Lambert law. E g value were analyzed with methods tauc's plot. Linear extrapolation (αhν) 2 against hν provide direct transition E g value 3.1 eV. Photodegradation ability of ZnO:Ag layer performed on E.coli bacteria. TPC measurement results were analyzed using the degradation rate graph, C t (bacteria concentration) against time exposure. The degradation rate values obtained 1. 554 x 10 -17 (cfu/ml) -2 (minutes) -1 . Keywords : ZnO:Ag, band gap energy, XRD, Uv-Vis, TPC, degradation rate. }, issn = {2302-7371}, pages = {249--256} url = {https://ejournal3.undip.ac.id/index.php/bfd/article/view/9110} }
Refworks Citation Data :
Research in the field of green technology using photocatalyst materials can be a solution to environmental pollution, especially contamination of aquatic bacteria. These materials absorb energy from the sun and form hydroxyl radicals that kill bacteria. Zinc oxide has a high photocatalytic efficiency with Eg 3.3 eV in the range of UV - visible light. ZnO can be modified by addition of silver in order to improve the effectiveness as well as anti-bacterial properties. ZnO:Ag 4% layers prepared with thermal spray coating method with deposition temperature at 250ºC and aneling temperature at 450 ºC. XRD measurements performed with CuKα radiation with wavelength at 1.54060 Å and the diffraction angle in range 20 ° - 70 °. The diffraction patterns were identified using the Crystallography Open Database (COD) and software QUALX. ZnO (Id 101-1259) phase and metal Ag (Id 151-2487) phase has formed, but there are also silver oxide phase AgO (Id 150-9488) and Ag2O (Id 150-9684). Crystallite size has been calculated using Debye-Scherrer equation resulted an average value 43.46 nm. The optical properties were measured using a UV-Vis spectrometer in the wavelength range 250-800 nm. Transmittance spectrum were converted into an absorbance spectrum using the Beer-Lambert law. Eg value were analyzed with methods tauc's plot. Linear extrapolation (αhν)2 against hν provide direct transition Eg value 3.1 eV. Photodegradation ability of ZnO:Ag layer performed on E.coli bacteria. TPC measurement results were analyzed using the degradation rate graph, Ct (bacteria concentration) against time exposure. The degradation rate values obtained 1.554 x 10-17 (cfu/ml)-2(minutes)-1.
Keywords : ZnO:Ag, band gap energy, XRD, Uv-Vis, TPC, degradation rate.
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