Synthesis of CuO/Co₃O₄ Coaxial Heterostructures for Efficient and Recycling Photodegradation

Figure 7

(a) Comparison of photocatalytic activities of bare CuO NRs and CuO/Co₃O₄ composites for the photocatalytic decolorization of MB in water. (b) UV-Vis absorption spectra of CuO NRs and CuO/Co₃O₄ coaxial heterostructures. (c) Proposed charge separation for CuO/Co₃O₄ coaxial heterostructures under light irradiation. (d) Cycling degradation curves for CuO/Co₃O₄ coaxial heterostructures.

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