DEVELOPMENT OF NANOFLUID DETERGENT BASED ON TIO2 AND PALM OIL-BASED PRIMARY ALKYL SULPHATE
Keywords:Detergent, Methylene Blue, TiO2, PalmPAS
Abstract: Surfactant is widely known as the main active ingredient of detergent. It derived from petrochemicals that are toxic and non-renewable. Its lack of performance to remove dirt due to random distribution of surfactant is also the limitation of conventional surfactant. Therefore, the necessity of developing detergent based on environmental-friendly surfactant and good dispersing agent effectively rises. Palm-based Primary Alkyl Sulphate (PalmPAS) is a surfactant derived from palm oil that can potentially replace the existing surfactant due to its non-toxic and renewable characteristic. TiO2 nanoparticle is widely known as a hydrophobic material that can be turned into a hydrophilic when exposed to photon/light source. It is also expected to be a good surfactant dispersing agent without altering the surfactant performance. In addition, TiO2 can produce powerful oxidizing species which can degrade organic pollutants, including dirt. The aim of the present study is to discuss the PalmPAS-TiO2 detergent formulation that is expected to effectively remove dirt and degrade the leftover waste. The methods of the research are synthesis of PalmPAS-TiO2 detergent, PalmPAS and TiO2 stability test by MBAS method and UV-Vis Spectrophotometer, and detergent performance (detergency). Performance testing analysis of the detergent consists of dirt/Methylene Blue (MB) removal and PalmPAS degradation/leftover waste analysis using UV-Vis Spectrophotometer. PalmPAS-TiO2 concentration that has been synthesized was 0.1, 0.2, to 0.5% of PalmPAS with specific concentration of. In terms of stability, all concentrations showed good stability. PalmPAS concentration that decreased was less than 2% during 14 days of storage while the precipitation of TiO2 in the detergent is less than 1% after 3 hours being synthesized. MB removal performance of detergent reached optimum conditions on the composition of 0.4% PalmPAS. Detergency on the cloth reached 93% by stirring the cloth using magnetic stirrer while it only reached 84% if the cloth was washed by soaking.
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