Electromagnetic absorption and electromagnetic interference (EMI) shielding materials, especially absorption-based EMI shielding materials, are urgently desired to eliminate increasingly serious electromagnetic radiation pollution. MXenes exhibit great promising to realize excellent...

Developing photocatalysts that can efficiently produce hydrogen from water under solar irradiation is highly desired for sustainable and clean hydrogen energy. Herein, it is demonstrated that (TiO 2 (B) nanosheet)/(metallic phase MoS 2 ) hybrid nanostructures have high activity for photocatalytic hydrogen evolution from water. The TiO 2 (B) nanosheets are prepared by solvothermal reaction with TiCl 3 as a precursor in the presence of ethylene glycol. Due to the short transportation distance of charge carriers, more negative conduction band edge, and the existence of oxygen vacancy, the photocatalytic activity of the pure TiO 2 (B) nanosheets is one order of the magnitude larger than that of the commercial P25. After loading metallic phase MoS 2 , the photocatalytic activity of TiO 2 (B) is further improved by %13 times to 1444 μmol g À1 h À1 because of the superior activity of metallic phase MoS 2 for hydrogen evolution. The findings provide a cost-effective and highly active photocatalyst for hydrogen production from water and are very helpful for the development of sustainable and clean hydrogen energy.

Transparent and flexible electromagnetic interference (EMI) shielding materials are highly desirable in wearable electronic devices and optical windows of aircrafts. Herein, transparent and flexible EMI shielding films are prepared by the use of Cu nanowires (Cu NWs). The films have a sandwiched structure composed of polyethersulfone (PES), Cu NW network, and polyethylene terephthalate (PET). The coating of PES strengthens the Cu NW contact, protects Cu NWs from the oxidation, and reduces the surface average roughness. The PES/Cu NWs/PET sandwich‐structured films show an EMI shielding effectiveness (SE) of 22 dB with an optical transmittance of 73%, and an even higher EMI SE of 30 dB in the entire X band with the optical transmittance of 67%. The PES/Cu NWs/PET sandwich‐structured films also exhibit superior flexibility, very good chemical stability in basic, acidic, and strong oxidizing solutions, as well as long‐term stability in ambient condition. This PES/Cu NWs/PET sandwich‐structured films are a promising transparent flexible EMI shielding material in wearable electronics and optical windows of aircrafts.