Selvamani Thangavel, Anandan Sambandam, Asiri Abdullah M, Maruthamuthu Pichai, Ashokkumar Muthupandian
Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India.
Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India.
Ultrason Sonochem. 2021 Jul;75:105585. doi: 10.1016/j.ultsonch.2021.105585. Epub 2021 May 7.
MgTiO (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 MgTiO 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 MgTiO 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.
通过一种简单的水热辅助退火方法制备了MgTiO（钛酸镁）纳米颗粒，并用各种分析技术对其进行了表征。使用三苯甲烷染料（结晶紫、碱性品红和酸性品红）的降解来评估催化性能（声催化、光催化和声光催化活性）。发现MgTiO纳米颗粒对结晶紫的声光催化活性比光催化活性高约2.9倍，比声催化过程高约20倍。此外，发现MgTiO纳米颗粒对碱性品红（阳离子染料）和酸性品红（阴离子染料）的降解具有显著的声光催化效率。已详细讨论了这些催化活性的机制。
