Ardianto Prasetiyo, Sukarni, Poppy Puspitasari
The increasing demand for energy from fossil fuels and depleting reserves has made researchers look for efficient energy and guaranteed its availability. This paper intends to understand the effect of TiO2 nanoparticles on Tetraselmis chuii (T. chuii) microalgae combustion using a thermogravimetric (TG) analyzer. The kinetic parameters were analyzed using the Coats-Redfern method on the ten models of reaction. The results showed that the combustion of T. chuii occurred in three stages, with the main combustion present at a range of 186.43–589.75 °C. The presence of TiO2 plays as an accelerator which promoted the decomposition of lipids to the lower temperature and shortened the combustion time. However, the presence of TiO2 increases the final residue. The adding of TiO2 reduced the activation energy up to 11.82% (from 72.99 to 64.36 kJ.mol−1) in the model of Chemical Reaction Order F1.5. This phenomenon confirmed that the presence of TiO2 affects thermal decomposition and activation energy. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Center for Renewable and Sustainable Energy Engineering (CRSEE), Department of Mechanical Engineering, Universitas Negeri Malang, Malang, 65145, Indonesia; Center of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Malang, 65145, Indonesia