Ultrasonically and photonically simulatable heterogeneous Bi substituted ceria nanocubes was synthesized via a modified hydrothermal method with the series of seven different substitution concentration of Bi (1‐11 mol%). The microscopic images showed the formation of regular cubic shaped Bi substituted ceria nanocubes. The results obtained from X‐ray photoelectron spectroscopy showed the substitution of Bi ions in ceria lattice. The optical properties of nanocubes were investigated via UV visible diffuse reflectance spectral characterization and it revealed that the nanocubes were capable of absorbing wider range of photons generated during ultrasonic cavitation effect. The sonocatalytic and photocatalytic performance of as prepared Bi substituted ceria nanocubes were examined by three different acidic/anionic and basic/cationic organic dyes. The effective condition for enhanced Bi substituted ceria nanocubes assisted sonocatalytic degradation of organic dyes was studied by altering the different initial operating parameters. The possible sonocatalytic and photocatalytic degradation reaction mechanism of Bi substituted ceria nanocubes is elucidated. The obtained experimental results show that the Bi substituted ceria nanocubes has good sonocatalytic as well as a photocatalytic ability on the degradation of both basic/cationic and acidic/anionic dyes with higher catalytic stability.

中文翻译：

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超声和光子可模拟的二氧化铈纳米立方体，用于增强染料的催化降解作用：优化，机理和稳定性的详细研究

通过改进的水热方法，用一系列七个不同取代浓度的Bi（1-11 mol％）合成了可超声和光子模拟的异质Bi取代的二氧化铈纳米立方体。显微图像显示规则的立方形状的Bi取代的二氧化铈纳米立方体的形成。X射线光电子能谱获得的结果表明二氧化铈在二氧化铈晶格中被取代。通过紫外可见漫反射光谱表征研究了纳米立方体的光学性质，结果表明该纳米立方体能够吸收超声空化效应产生的更宽范围的光子。通过三种不同的酸性/阴离子和碱性/阳离子有机染料检查了制备的Bi取代的二氧化铈纳米立方体的声催化性能和光催化性能。通过改变不同的初始操作参数，研究了增强的Bi取代的二氧化铈纳米立方体辅助声催化降解有机染料的有效条件。阐明了Bi取代的二氧化铈纳米立方体可能的声催化和光催化降解反应机理。获得的实验结果表明，Bi取代的二氧化铈纳米立方体对碱性/阳离子和酸性/阴离子/阴离子染料的降解均具有良好的声催化和光催化能力，具有较高的催化稳定性。