A Mo2C@C/PVDF composite with excellent absorption performance has been synthesized. The results indicate that the maximum reflection loss can reach −39.0 dB, and the absorbing bandwidth is up to 3.1 GHz at a thickness of 2.0 mm.

The enhanced photocatalytic properties of Cu 2 O/TiO 2 nanocomposites resulting from the synthesis of uniform p-type Cu 2 O and n-type TiO 2 via wet chemical method were studied. The nanocomposite also had been well characterized and tested for its photocatalytic activity. These results indicate that the photocatalytic performance of the composites is clearly improved. The degradation rate of methylene blue solution (10 mg/L) increased to 93.67% in 45 minutes. The p-n heterojunction theory was used to explain the enhanced photocatalytic properties. The photocatalytic performances of Cu 2 O/TiO 2 nanocomposites and its photoreaction mechanism were proposed and discussed in this work.

One‐dimensional MoO3/MoS2 hybrid composites were synthesized by hydrothermal synthesis, and flexible MoO3/MoS2/PVDF nanocomposites could be prepared in a controlled fashion by combining the MoO3/MoS2 composites with polyvinylidene fluoride (PVDF) matrix. The MoO3/MoS2/PVDF hybrids with a low filler content (20 wt %) exhibited distinct microwave absorption properties in the range of 2–18 GHz. The minimum reflection loss can reach −38.5 dB at 8.7 GHz, and the reflection loss was less than −10 dB in the frequency range from 3.03–11.02 GHz with an absorber thickness of 2.0–5.0 mm. The MoO3/MoS2/PVDF nanocomposites exhibited better absorption properties than pure MoO3 and MoS2. The possible microwave absorption mechanism was also discussed in detail.

With the aim of achieving high microwave absorption and electromagnetic shielding performance, reduced graphene oxide (rGO) and Fe3O4@SiO2 nanochains are successfully combined at various mass ratios. By selecting the right mass ratio, an rGO/Fe3O4@SiO2 composite with excellent microwave absorption properties is obtained, and, due to the addition of highly conductive rGO, the desired shielding effectiveness is also achieved. The reflection loss (RL) value of the composite can reach −48.34 dB with a mass ratio of 1:1, and the effective bandwidth (<-10 dB) can cover 4.88 GHz at a thickness of 2.0 mm. Moreover, the composite with a mass ratio of 4:1 exhibits outstanding electromagnetic shielding performance, which also broadens its fields of application. This outstanding microwave absorption and electromagnetic shielding performance indicate that the composite can potentially be employed as a multi-functional material.