Flower-like MoS2/cotton fiber-derived TiO2 composites with strong electromagnetic wave absorption performance

The flower-like MoS 2 /cotton fiber-derived TiO 2 (MoS 2 /CF–TiO 2 ) composites were successfully prepared through the bio-template method and hydrothermal reaction. The influence of TiO 2 morphology and content on the electromagnetic wave (EMW) absorption performance of the composites was explored. The enhancement effect and mechanism of the heterostructure formed by MoS 2 and CF–TiO 2 on the EMW absorption performance were analyzed. The results showed that when CF–TiO 2 was added with a titanium-molybdenum atomic ratio of 2:1, the MoS 2 /CF–TiO 2 composites reached the minimum reflection loss (RL) of − 42.4 dB at 6.4 GHz when the thickness was 4.0 mm. The strong EMW absorption performance of MoS 2 /CF–TiO 2 composites could be attributed to the improvement of impedance matching. The good interface contact between the tubular CF–TiO 2 and flower-like MoS 2 not only increased the specific surface area of the material, but also greatly improved the conductivity of the material, enhancing the conduction loss and various polarization losses.