Research Article
[Retracted] Preparation of Alumina Nanoparticles and Coating with Polyvinylpyrrolidone to Treat Cadmium Contamination of Water
Figure 2
Alumina after coating with pvp polymer with different magnifications (a) with 1 μm magnification, (b) with 500 nm magnification, (c) with 200 nm magnification.
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