Abstract
In this work, BaTiO3 with different morphologies is obtained by controlling the Ba/Ti ratio in the precursor, reaction temperature, and reaction time. The effects of the morphology and the specific surface area of samples, as well as friction conditions on piezocatalytic and tribocatalytic performance, are investigated. BaTiO3 exhibits the best piezocatalytic performance when it is composed of a mixed-shape of BaTiO3 rod and particle because in this case there is a balance between the specific surface area and the piezopotetial. However, the tribocatalytic performance is majorly dependent on friction conditions such as the roughness of the reaction vessel and the rotation speed of the stirring rod. Both ⋅O2− and ⋅OH play important roles in the piezocatalytic and tribocatalytic degradation of dyes. Therefore, this work gains significant factors in piezocatalytic and tribocatalytic degradation of dyes and provides a reference for remediation of water pollution in the future.
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