Year-end Sale % OFF 
Abstract
In this work, we analyzed the photocatalytic activity of TiO2:Ln (Ln=La, Ce, Pr, Nd, Sm, Eu and Gd) systems in the degradation of two organic dyes by means of a probabilistic approach to screen the factors influencing their photocatalytic activity. The photocatalytic properties were described by six responses (crystallite size, band gap energy, visible light absorption, specific surface area, zeta potential and photocatalytic conversion) as a function of lanthanide type (seven elements), lanthanide concentration (two), pH level (two) and dye type (methyl orange and crystal violet). We analyzed 140 experiments using the analysis of variance (ANOVA) method. The results show that band gap energy and specific surface area exhibited behavior that depended on the atomic number of the element used. However, visible light absorption was not modified by the type of lanthanide element or its concentration in the range studied (0.1 and 0.3wt.% lanthanides/TiO2 ratio), and the zeta potential depended mainly on pH. Photocatalytic conversion depended on pH, dye type and doping element. The experimental factorial design of the photocatalytic system allowed us to find the best conditions for enhancing the degradation of these two dyes.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
