Effects of annealing temperature on the structure, morphology, and photocatalytic properties of SnO/rGO nanocomposites.

Water pollution abatement is a problem in today's society that requires urgent attention. Moreover, photocatalysts are an effective method to treat environmental pollution, and SnO/reduced graphene oxide composite photocatalysts have been extensively studied in recent years. The synthesis parameters for these photocatalysts significantly affect their morphologies, structures, and properties.

Thermal annealing-induced self-junction of hydrothermal titanate nanotubes/TiO nanoparticles with enhanced photocatalytic activity.

This work investigates the effect of thermal annealing on the crystalline structure and optical properties of hydrothermal titanate nanotubes (TNTs). It shows that subjecting TNTs to air at 400 °C can be used to form a junction between TNTs and TiO nanoparticles. Furthermore, the TNT microstructure is transformed from monoclinic to anatase phase by the annealing process.

Photocatalytic degradation of cephalexin by g-CN/Zn doped FeO under visible light.

In this work, we reported synthesis a novel magnetically separable g-CN/Zn doped FeO composite (g-CN/ZnFe) by a simple polyol thermal method. The characteristics of the was checked by XRD, SEM, TEM, XPS, PL technologies. The optimized weight ratio of g-CN and Zn doped FeO was investigated.

Mesocrystalline Zn-Doped FeO Hollow Submicrospheres: Formation Mechanism and Enhanced Photo-Fenton Catalytic Performance.

Uniform and magnetic recyclable mesocrystalline Zn-doped FeO hollow submicrospheres (HSMSs) were successfully synthesized via a simple one-pot solvothermal route and were used for efficient heterogeneous photo-Fenton catalyst. XRD, XPS, Raman spectroscopy, Mössbauer spectroscopy, SEM, HRTEM, and EDX analyses revealed that the shell of HSMSs is highly porous and assembled by oriented attachment of magnetite nanocrystal building blocks with Zn-rich surfaces. Furthermore, a possible formation mechanism of mesocrystalline hollow materials was proposed.

ZnO coaxial nanorod Homojunction UV light-emitting diodes prepared by aqueous solution method.

The fabrication of a p-shell/n-core coaxial nanorod ZnO homojunction light-emitting diode by inexpensive solution method is demonstrated. The p-type conductivity of the ZnO shell arises from the incorporation of potassium while the n-type conductivity of the core is due to unintentional doping.