@article{scholars10906,
             doi = {10.9767/bcrec.13.1.1396.170-178},
            year = {2018},
           title = {CeO2-TiO2 photocatalyst: Ionic liquid-mediated synthesis, characterization, and performance for diisopropanolamine visible light degradation},
            note = {cited By 5},
       publisher = {Diponegoro University},
          number = {1},
         journal = {Bulletin of Chemical Reaction Engineering and Catalysis},
          volume = {13},
           pages = {170--178},
            issn = {19782993},
        abstract = {CeO2-TiO2 photocatalyst with Ce:Ti molar ratio of 1:9 was synthesized via co-precipitation method in the presence of 1-ethyl-3-methyl imidazolium octylsulfate, EMIMOctSO4 (CeO2-TiO2-IL). The ionic liquid acts as a templating agent for particle growth. The CeO2-TiO2 and TiO2 photocatalysts were also synthesized without any ionic liquid for comparison. Calcination was conducted on the as-synthesized materials at 400 {\^A}oC for 2 h. The photocatalysts were characterized using diffuse reflectance UV-Vis spectroscopy (DR-UV-Vis), field emission scanning electron microscopy (FESEM), X-ray powder diffrac-tion (XRD), and surface area and pore size analyzer (SAP). The presence of CeO2 has changed the opti-cal property of TiO2. It has extended the absorption edge of TiO2 from UV to visible region. The calcu-lated band gap energy decreased from 2.82 eV (TiO2) to 2.30 eV (CeO2-TiO2-IL). The FESEM morphol-ogy showed that samples forms aggregates and the surface smoothens when ionic liquid was added. The average crystallite size of TiO2, CeO2-TiO2, and CeO2-TiO2-IL were 20.8 nm, 5.5 nm, and 4 nm. In terms of performance, photodegradation of 1000 ppm of diisopropanolamine (DIPA) was conducted in the presence of hydrogen peroxide (H2O2) and visible light irradiation which was provided by a 500 W halogen lamp. The best performance was displayed by CeO2-TiO2-IL calcined at 400 {\^A}oC. It was able to remove 82.0\% DIPA and 54.8\% COD after 6 h reaction. Copyright {\^A}{\copyright} 2018 BCREC Group. All rights reserved.},
          author = {Sivalingam, J. R. and Kait, C. F. and Wilfred, C. D.},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041238417&doi=10.9767\%2fbcrec.13.1.1396.170-178&partnerID=40&md5=a353a8df1bcdd9e2d0cb60b2d88a32fa},
        keywords = {Calcination; Cerium oxide; Crystallite size; Energy gap; Field emission microscopes; Ionic liquids; Light; Molar ratio; Pore size; Precipitation (chemical); Scanning electron microscopy; Ultraviolet visible spectroscopy, Coprecipitation method; Diisopropanolamine; Field emission scanning electron microscopy; Imidazolium; Molar ratio; Particle growth; Performance; Synthesised; Templating agents; Visible light degradation, Titanium dioxide}
}