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Formation of heterostructures with p-type oxides such as NiO and CuO is one of the effective methods for improving the photocatalytic performance of ZnO. Such systems are often synthesized through template-based growth techniques that involve many steps. We have prepared ZnO–NiO composites through a facile, template-free, low-temperature sonochemical route. High-resolution transmission electron microscopy...
Diatomites are natural materials that are easily found around the world and require further study to achieve a systematic application in industry. In this study, we compared three Brazilian diatomites from different locations and found some similarities in their intrinsic characteristics that may be useful for removing contaminants, such as rhodamine B and methylene blue. The samples were analyzed...
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