Thermal Characteristic of Tetraselmis chuii Combustion Influenced by Titanium Dioxide (TiO₂) Nanoparticle

Abstract:

The investigation of Titanium dioxide (TiO₂) nanoparticles on the thermal characteristic of Tetraselmis chuii (T.Chuii) microalgae during combustion process has been carried out through a thermogravimetric (TG) analyzer. T.Chuii microalgae samples were cultured within 8 days at BBPBAP Jepara, Central Java, Indonesia. The microalgae sediment was dried at 80°C for 24 hours then was powdered by means of a mortar. Thereafter, the dried powder of microalgae was filtered with a size of 60 mesh. Titanium dioxide (TiO₂) nanoparticles were used as catalysts with the particle size of < 25 nm; these were obtained from Singapore’s Sigma Aldrich. Amount of 0.03 mg of TiO₂ and 10 mg of T.Chuii microalgae were mixed mechanically using a mortar to guarantee the homogeneous blend, and then this sample was heated up in the oven for 14 hours at 80°C. The TG experiment was performed at a temperature range 25 to 900°C with atmospheric air at a flow rate of 50 mL/min and a heating rate of 15 °C/min. Differential method of Arrhenius is applied to evaluate kinetic parameters, including reaction order (n), activation energy (E_a), and pre-exponential factor (log A) that were 0.9; 74,191 kJ/mol and 6.38 min^-1 for the stage II and 0.87; 118.47 kJ/mol and 7.29 min^-1 for stage V.

• Periodical: Key Engineering Materials (Volume 851)
• Pages: 149-155
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.851.149
• Online since: July 2020
• Authors: Sukarni Sukarni*, Ardianto Prasetiyo, Retno Wulandari, Aloon Eko Widiono, Poppy Puspitasari
• Keywords: Arrhenius Method, Combustion, Nanoparticle, Tetraselmis chuii, Titanium Dioxide (TiO₂)

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