Ag doped CoO nanoparticles for high-performance supercapacitor application.

Ag doped CoO nanoparticles (NPs) were synthesized via a co-precipitation method changing the concentration of Ag. The crystal structure, morphology, surface area, functional group, optical band gap, and thermal property were investigated by XRD, SEM, BET, FTIR, UV-Vis, and TGA/DTA techniques. The XRD results showed the formation of single-cubic CoO nanostructured materials with an average crystal size of 19.

Synthesis and application of VO-CeO nanocomposite catalyst for enhanced degradation of methylene blue under visible light illumination.

Methylene blue dye is among the toxic, mutagenic, and carcinogenic pollutants. Hence, its treatment via photocatalytic degradation is an important remediation method for the sake of a healthy environment. Herein, the VO-CeO nanocomposite catalysts were synthesized via a simple precipitation-thermal decomposition approach and used for the photodegradation of methylene blue in the presence of HO as an effective electron scavenger under visible light illumination.

Synthesis of oxy-sulfide based nanocomposite catalyst for visible light-driven reduction of Cr(VI).

The oxy-sulfide based VO@(In,Ga)(O,S) nanocomposite catalyst, at different weight percentages of VO, was successfully synthesized via a simplistic procedural route for the detoxification of hazardous Cr(VI). The two pure catalysts were intimately allied and used for visible light-driven reduction of hazardous Cr(VI). The nanocomposite catalysts were characterized to observe the effects of VO on crystal phase, morphology, light absorption, catalytic activity, and electrical properties.

Facile synthesis of bimetallic (In,Ga)(O,S) oxy-sulfide nanoflower and its enhanced photocatalytic activity for reduction of Cr(VI).

Hexavalent chromium is one of the most chronic and harmful to human beings, animals, and environmental well-being, and hence needs a high attention to detoxify it. For this purpose, bimetallic (In,Ga)(O,S) oxy-sulfide nanoflower catalyst with different Ga contents was successfully synthesized at a low temperature of 150 °C via a facile method. It was systematically characterized and the visible light-driven photocatalytic reduction of toxic Cr(VI) was 100% completed at 4 min.