PHOTOCATALYTIC DEGRADATION OF PHENOL USING TIO2 WHICH IS SYNTHESIZED IN PYRIDINIUM DERIVATIVE IONIC LIQUIDS

• Main Author: RIZQI APRILIA (NIM:20516053), FATHIA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/27204
• Institution: Institut Teknologi Bandung

This study aims to determine the activity of TiO2 photocatalytic degradation on <br /> <br /> phenol synthesized in pyridinium derivative ion media using hydrothermal <br /> <br /> method and study the effect of ionic liquids on the properties and structure of <br /> <br /> TiO2. Phenols and their derivatives are organic pollutants that cause <br /> <br /> environmental problems because of their toxic nature. Therefore phenol <br /> <br /> degradation is carried out using the photocatalytic method and TiO2 as the <br /> <br /> catalyst. The first step taken in this research was to synthesize 1-butyl pyridinium <br /> <br /> chloride ion, 1-butyl pyridinium tetrafluoroborate, and 1-butyl pyridinium <br /> <br /> salicylate which were then characterized by NMR. Then the ionic liquid that has <br /> <br /> been formed was used as a solvent for the synthesis of TiO2 with a ratio of ionic <br /> <br /> liquids and water 3: 7 w / w. TiO2 that has been formed is characterized by XRD, <br /> <br /> SEM, and BET to determine the effect of different ionic liquids on TiO2 structure. <br /> <br /> In this study TiO2 has been synthesized in a solvent medium of various <br /> <br /> pyridinium derivative ionic liquids which have a large surface area and have <br /> <br /> pores. The TiO2 produced was an anatase phase which was well known for <br /> <br /> photocatalytic processes compared to brokit and rutile. Photocatalytic studies <br /> <br /> were then carried out at optimum conditions for each TiO2 that had been <br /> <br /> synthesized. Photocatalytic activity of TiO2 compounds synthesized with a <br /> <br /> mixture of BuPy-Salicylate: water (3: 7w/w) had the highest degradation <br /> <br /> percentage of phenol, 92.86% then a mixture of BuPy-BF4: water (3: 7 w/w) <br /> <br /> 89.43%, BuPy-Cl: water (3: 7 w/w) 73.48% and water 65.05%. The results of this <br /> <br /> degradation were analyzed by measuring the final concentration after the <br /> <br /> degradation process using HPLC.