Supporting information: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology 30, 1141–1150. https://doi.org/10.1016/j.apt.2019.03.009

Abstract

Fig. 1S. UV-vis diffuse reflectance spectra of CaO-SiO2 system; Fig. 2S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO; Fig. 3S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of SiO2; Fig. 4S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO•SiO2 calcined at 700 °C/2 h; Fig. 5S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO•SiO2 calcined at 900 °C/48 h; Fig. 6S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 3CaO•2SiO2 calcined at 700 °C/2 h and 900 °C/48 h; Fig. 7S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 2CaO•SiO2 calcined at 700 °C/2 h and 900 °C/48 h; Fig. 8S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 3CaO•SiO2 calcined at 700 °C/2 h and 900 °C/48 h