Gamma Radiation Synthesis of Ag/P25 Nanocomposites for Efficient Photocatalytic Degradation of Organic Contaminant.

Titanium dioxide (TiO) has garnered significant attention among various photocatalysts, whereas its photocatalytic activity is limited by its wide bandgap and inefficient charge separation, making the exploration of new strategies to improve its photocatalytic performance increasingly important. Here, we report the synthesis of Ag/P25 nanocomposites through a one-step gamma-ray radiation method using AgNO and commercial TiO (Degussa P25). The resulting products were characterized by powder X-ray diffraction, UV-Vis diffused reflectance spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy.

Ultrastretchable and adhesive agarose/TiCT-crosslinked-polyacrylamide double-network hydrogel for strain sensor.

A novel agarose/TiCT-crosslinked-polyacrylamide (AG/T-PAM) double-network (DN) hydrogel is synthesized by combining heating-cooling and γ-ray radiation-induced polymerization. The AG/T-PAM DN hydrogel possesses excellent mechanical properties with 4250% stretchability, and good adhesion to different substrates, such as an adhesive strength of 1148 kPa to copper at 30 °C. The resultant hydrogel also exhibits excellent tensile and compression sensing properties due to the variation of conductive network within hydrogel.

Polyacrylamide/Copper-Alginate Double Network Hydrogel Electrolyte with Excellent Mechanical Properties and Strain-Sensitivity.

The double network (DN) hydrogel has attracted great attention due to its wide applications in daily life. However, synthesis DN hydrogel with excellent mechanical properties is still a big challenge. Here, polyacrylamide/copper-alginate double network (PAM/Cu-alg DN) hydrogel electrolyte is successfully synthesized by radiation-induced polymerization and cross-linking process of acrylamide with N, N'-methylene-bis-acrylamide and subsequent cupric ion (Cu ) crosslinking of alginate.

Facile Vacuum Annealing-Induced Modification of TiO with an Enhanced Photocatalytic Performance.

In this work, the photocatalytic performance enhancement of hydrothermally prepared TiO was achieved by facile vacuum annealing treatment. Calcination of TiO powder in air (CA-TiO) maintained its white color, while gray powder was obtained when the annealing was performed under vacuum (CV-TiO). Fourier transform infrared, total organic carbon, X-ray photoelectron spectroscopy, and electron paramagnetic resonance analyses proved that vacuum annealing transformed ethanol adsorbed on the surface of TiO into carbon-related species accompanied by the formation of surface oxygen vacancies (Vo).

One-Pot Hydrothermal Preparation of FeO Decorated Graphene for Microwave Absorption.

FeO decorated graphene was synthesized for electromagnetic wave absorption via a facile one-pot hydrothermal approach. The structure and morphology of the as-prepared nanomaterials were systematically investigated. The graphene oxide (GO) was reduced and FeO nanoparticles were evenly decorated on the surface of reduced graphene oxide (rGO) nanosheets.