Preparation of MgTi2O5 nanoparticles for sonophotocatalytic degradation of triphenylmethane dyes

• Published in: Ultrasonics sonochemistry Vol. 75; p. 105585
• Main Authors: Selvamani, Thangavel, Anandan, Sambandam, Asiri, Abdullah M., Maruthamuthu, Pichai, Ashokkumar, Muthupandian
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2021; Elsevier
• Subjects: MgTi2O5 nanoparticles; Photocatalytic; Sonocatalytic; Sonophotocatalytic activity; Synergetic effect; Ultrasound hybridized technologies: A new breathing for Sonochemistry; Photocatalytic; Sonophotocatalytic activity; Sonocatalytic; Synergetic effect; MgTi2O5 nanoparticles
• ISSN: 1350-4177; 1873-2828
• DOI: 10.1016/j.ultsonch.2021.105585

[Display omitted] •MgTi2O5 nanoparticles were prepared by simple hydrothermal assisted post-annealing method.•Sonophotocatalytic activity was examined for triphenylmethane dyes degradation.•Sonophotocatalytic results exhibit a strong synergetic effect for crystal violet degradation.•Proposed mechanism of triphenylmethane dyes degradation over MgTi2O5 nanoparticles. MgTi2O5 (magnesium dititanate) nanoparticles were prepared by a simple hydrothermal assisted post-annealing method and characterized with various analytical techniques. The catalytic properties (sonocatalytic, photocatalytic and sonophotocatalytic activity) were evaluated using the degradation of triphenylmethane dyes (crystal violet, basic fuchsin, and acid fuchsin). The sonophotocatalytic activity of MgTi2O5 nanoparticles towards crystal violet was found to be ~2.9 times higher than the photocatalytic activity and ~20 times higher than that of the sonocatalytic processes. In addition, the sonophotocatalytic efficiency of MgTi2O5 nanoparticles was found to be remarkable for the degradation of basic fuchsin (cationic dye) and acid fuchsin (anionic dye). The mechanism of these catalytic activities has been discussed in detail.