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

doi:10.9767/bcrec.12.3.951.430-436

DOI: https://doi.org/10.9767/bcrec.12.3.951.430-436

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 Kaltsum¹ , Affandi Faisal Kurniawan¹, Iis Nurhasanah², Priyono Priyono²

¹Physics Education Department, Universitas PGRI Semarang, Jl. Sidodadi Timur No.24, Semarang 50125, Indonesia

²Physics Department, Universitas Diponegoro, Jl. Prof. Soedarto, Kampus Undip Tembalang, Semarang 50275, Indonesia

Received: 20 Feb 2017; Revised: 27 May 2017; Accepted: 30 May 2017; Available online: 27 Oct 2017; Published: 1 Dec 2017.

Editor(s): Istadi Istadi

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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.

Keywords: TiO2 thin film; TTiP; AcAc; Used frying oil; Photocatalytic activity

Funding: ministry of Research, Technology, and Higher Education of The Republic of Indonesia

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Section: Original Research Articles

Language : EN

In 2017: BCREC Volume 12 Issue 3 Year 2017 (December 2017)

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