Synthesis and Characterization of TiO2-CaO and TiO2-CaO-Fe2O3 Photocatalyst for Removal of Catechol

PDF
Full Text
Candra Yulius Tahya, Wahyu Irawati, Karnelasatri Karnelasatri, Friska Juliana Purba

Abstract


TiO2-CaO and TiO2-CaO-Fe2Ophotocatalysts have been synthesized through the surfactant-assisted sol-gel method. The catalysts were characterized using XRD, FTIR, SEM-ED Sand BET surface area. XRD pattern showed the formation of anatase TiOcrystal phase both in TiO2-CaO and TiO2-CaO-Fe2O3. The TiO2-CaO has higher crystallinity than TiO2-CaO-Fe2O3. Based on the peak refinement using Rietveld, there are two peaks identified as Fe2Ohematite in the sample TiO2-CaO-Fe2O3.  BET surface area analysis showed that the average pore size of TiO2-CaO and TiO2-CaO-Fe2Ocatalysts are 8.04 and 8.41 nm respectively, indicating both catalysts are mesoporous.FTIR spectra show that the vibration of Ti-O, Ca-O, and Ca-TiOwere observed in both catalysts. SEM images confirm that both catalysts are porous material. The catechol removal using TiO2-CaO and TiO2-CaO-Fe2Oimproved with the increase of catalyst concentration. After 360 minutes of UV radiation, the removal of catechol using TiO2-CaO-Fe2Oreached 46.0%, 48.3%, and 69.2%, while when using TiO2-CaO, it reached 22.1%, 36.8%, and 57.0% for 0.1 g, 0.15 g, and 0.2 g of catalysts, respectively. The photocatalytic activity of TiO2-CaO-Fe2Ois not so strong compared to TiO2-CaO catalyst but the catechol adsorption property of TiO2-CaO-Fe2Ois higher than that of TiO2-CaO catalyst.



DOI: http://dx.doi.org/10.20884/1.jm.2019.14.2.570

Metric logoArticle Metrics


This article has been viewed: 21 (times)
PDF file viewed / downloaded: 11 (times)

Refbacks

  • There are currently no refbacks.


Logo Unsoed

Molekul

Jurnal Ilmiah Kimia
Department of Chemistry, Faculty of Mathematics and Natural Sciences,
Universitas Jenderal Soedirman, Purwokerto, Indonesia

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.