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Priyono Priyono
Department Of Physics, Faculty Of Sciences And Mathematics, Diponegoro University
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Journal : Bulletin of Chemical Reaction Engineering

 1 
The Role of Concentration Ratio of TTiP:AcAc on the Photocatalytic Activity of TiO2 Thin Film in Reducing Degradation Products of Used Frying Oil Ummi Kaltsum; Affandi Faisal Kurniawan; Iis Nurhasanah; Priyono Priyono
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 3 Year 2017 (December 2017)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (480.54 KB) | DOI: 10.9767/bcrec.12.3.951.430-436

Abstract

The TiO2 thin film has been applied to reduce degradation products (free fatty acid/FFA and peroxide value/PV) in used frying oil under ultraviolet (UV) light irradiation. FFA and PV are degradation products in used frying oil that can cause various diseases in human. In this study, the TiO2 thin films were made from precursor solution with concentration ratio of titanium tetraisopropoxide (TTiP) and acetylacetone (AcAc) of 1:1, 1:2, 2:1, 2:3, and 3:2. The aim of this study is to investigate the effect of concentration ratio of TTiP and AcAc on the photocatalytic activity of TiO2 thin film in reducing FFA and PV of used frying oil. The spray coating method was used to deposit precursor solution of TiO2 onto glass substrate at 450 oC. All TiO2 thin films consist of spherical-like grain with dominant structure of TiO2 rutile. The band gap energy of TiO2 thin films was in the range 3.11-3.16 eV. Concentration ratio of TTiP and AcAc of 2:3 results in TiO2 thin film with highest photocatalytic activity in reducing FFA and PV of used frying oil. 
Reduction of Peroxide Value and Free Fatty Acid Value of Used Frying Oil Using TiO2 Thin Film Photocatalyst Ummi Kaltsum; Affandi Faisal Kurniawan; Iis Nurhasanah; Priyono Priyono
Bulletin of Chemical Reaction Engineering & Catalysis 2016: BCREC Volume 11 Issue 3 Year 2016 (December 2016)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (492.641 KB) | DOI: 10.9767/bcrec.11.3.577.369-375

Abstract

The quality of used frying oil degraded due to the presence of products degradation, such as; PV and FFA which formed during the frying process. PV and FFA are harmful to human health. The photocatalytic activity of TiO2 thin film has been applied in various fields, especially in the environment. The aim of this study is to evaluate photocatalytic activity of TiO2 thin film for reducing PV and FFA in used frying oil. The TiO2 thin films were deposited on glass substrate by spray coating method at a temperature of 450 oC. The TiO2 precursor solution was prepared by mixing TTiP, AcAc, and ethanol. The thin films were varied into two conditions; as-deposited and annealed at a temperature of 500 oC. The morphology, crystalline structure, and optical properties of the thin films were characterized by scanning electron microscope (SEM), X-ray Diffraction (XRD), and UV-VIS spectrophotometer, respectively. The photocatalytic process was carried out by putting TiO2 thin film in used frying oil and irradiated by sunlight. The result showed that both of TiO2 thin films were still amorphous in nature. However, there was a peak with low intensity for annealed TiO2 thin film which corresponding to the TiO2 anatase crystals plane of (101). Annealing process improved crystallinity and changed the shape morphology of TiO2 thin films. The band gap was found to be 3.59 eV for as-deposited TiO2 thin film and 3.49 eV for the annealed-TiO2 thin film. The photocatalytic process shows that TiO2 thin films reduced FFA and PV of used frying oil up to 67.10% and 79.15%, respectively. Photocatalytic activity of annealed TiO2 thin film was higher than as-deposited TiO2 thin film. The results indicated that TiO2 thin film photocatalyst potential as the new alternative method to purify used frying oil. 
Co-Authors A Manaf A. Haris A. Rusgiyono A.A. Ketut Agung Cahyawan W Abidin, Nur Achmad Imam Agung AF Kurniawan, AF Agfianto, Tomi Agung Cahyono Agus Anggoro Sigit Agus Subagio Agus Trihandoyo Agus Ulinuha Ahmad Asrori Ali Haidir Alif Noor Anna Aminuyati Anas M Najih Andi Andi Andi Gunawan Andi Saryoko Andoyo, Andreas Angelina, Dian Anggrellanggi, Arsy Arif Jauhari Arisandy, Poppy Arisanty, Poppy ARIWIBOWO, PRASETIO Arnelli Arnelli Artian, Artian Sirun Artian Aryo Tunjung Kusumo Astia Ningsih, Dwi Atien Priyanti Augustine, Yvonne Auliani, Faulhia B. Raharjo Bahri, Saiful Bawano, Franklin Bawono, Ari Bianome, Wofrid Erlista Bianome, Wolfrid Choirul Amin Choirul Anam AM Diponegoro D. Ispriyanti David David Dian Puspita Didik Setiyo Widodo Dilahur Dilahur, Dilahur Dima, Adid Balle Dina Syafrianingsih, Dina Dwi Budi Santoso Dwi Purwantoro Sasongko Dwi Wahyu Nugroho Dwiantoro, Tino E. Setiawati Edy Suprapto Endang Sri Sudalmi Eris, Deden Dewantara Erma Kumala Sari F. Ariyanto Fadila, Hana Fahira, Talitha Khansa Fahrizal Fahrizal Fajar Arif Mustofa Fatur, Tiyo Fauziyah, Ridha Feta, Neneng Rachmalia Fiqhan Muslim , Ibnu fiqhan muslim, ibnu Fitria Fitria Fitriyah, Fauziatul Fransisca, Luciana guntoro, adi H. Sutanto H. Sutanto Henny Armaniah Henny Destiana Heri Sutanto Hindriari, Reni Hocky, Agus Hodo, Yeremias Lake Hudzaifah Hazazi Zia Kusuma Hutahuruk, Marice Br I Gusti Bagus Wiksuana I Gusti Putu Asto Buditjahjanto I Nurhasanah I. Marhaendrajaya Ihwan Susilo, Ihwan Iis Nurhasanah Ilmy Zaada Faidullah Imam Hardjono Indras Marhaendrajaya Isti’ana Maftuchah, Isti’ana J. E. Suseno Jasman Jasman Jatmiko Endro Suseno Joko Sudarto Joni Joni Juwanda, Farikhin K Sofjan Firdausi K, Basri K. S. Firdausi, K. Karnaji Karnaji Karyono Karyono Ketut Sofjan Firdausi, Ketut Sofjan Kharis Triyono Khasan Rowi Kholifah, Desiana Nur Kilat Permana Putra Kliwon Hidayat Kristanto, Daniel Kudri, Muhammad Wan Kudri, Wan Muhammad Kukuh Dwi Septiana Kusumo, Aryo Tunjung Kuswaji Dwi Priyono Laia, Maria Monika Septa Lila Dini Utami Lilik Anifah Luktyansyah, Insyiah Meida M. Imam Taufiq M. Izzati M. Nur Manesi, Damianus Manurung, Lengsi Mau, Sealtial Mau, Sealtiel Maximilian M. J. Kapa, Maximilian M. J. Muh Yasin YBIC Muhammad Abdul Aziz Muhammad Faisal Muhammad Farid Aminudin, Muhammad Farid Muhammad Hilman Fakhriza, Muhammad Hilman Muhammad Rivai Mujiono Mujiono Munawar Cholil Muryanto Nanda, Adi Prasetia Nasution, Ali Napiah Nofiar, Nofiar Nofrizal Nofrizal Nufus, Khayatun Nurdin Ibrahim Nurkholis Nurkholis Nurul Taufiqu Rochman Nurwenda Novan Maulana Nyoto Nyoto, Nyoto Panca Saputra, Elin Paramita, Safira Arta Pardoyo Pardoyo Passu, Ahas Weros PRAKOSO, Haryo Tejo Putri, Ega Harnanditya Putri, Novia Kelana Putri, Novita Yulia R. Hariyati R. Hastuti Radyum Ikono Rahayu, Adi RAHMAD MAHENDRA SARWIJIWO Rahmat Tri Yunandar Ramadhani, Syaikhah Aditya Ranam, Sanudin Regina Ayu Andini Rezki, Muhammad Ricky Ricky Rike Yudianti Rike Yudianti Rismaya, Siska Riyaji, Akbar Rizaldi Putra Rohana, Krisma Dwi Rosihan Asmara RR. Ella Evrita Hestiandari S Siswanto S, Yvonne Augustin S. Suryono S. Tana Sanggam Ramantisan Saputara, Elin Panca Saputro, Achmat Yulyadi Saputro, Avisema Sigit Sartono Joko Santosa Satria, Rita Siregar, Valdi Muhamad Rafiansyah Siregar, Valdi Muhammad Rafiansyah Sirih, Muhammad Siswadi Siswadi Soekarno Mismana Putra, Soekarno Mismana Sri Hartati Sri Wahyuni Subagya Subagya, Subagya Subhan Subhan Sudarno Sudarno Sugito Sugito Suhardjono Suhardjono Suhartono Suhartono Sulastri Sulastri Suldalmi, Endang Sri Sulistyawan A Sulistyo Sulistyo Sunarhadi, M. Amin Sundari Utami, Shinta Supratiwi, Mahardika Suryadhitia, Rachmat Suryadithia, Rachmat Suswandi, Suswandi Suyono Suyono Syukur, Adnan T. Windarti Tage, Oktafianus Tamelan, Paul G. Taufik Rahman Thaka, Indra Tito Prastyo Rahman To, Yonas Tri Atmoko Tri Susilowati U Kaltsum, U Ummi Kaltsum Valencia, Erica Very Richardina Vincensius Gunawan S.K. W. H. Rahmanto Wibisono, Sigit A. Widiyanto Widiyanto Widyastuti, Lina Ayu Windu Ganar Prasongko Windu Ganar Prasongko Wofrid E. Bianome Yulanda, Novidya Yuli Priyana Yuswono Yuswono Z. Muhlisin Zaenul Muhlisin