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MXene is a novel 2D material that has good electrical, optical, and chemical properties. MXenes have a rich functional group, surface morphology like graphene, and their high hydrophilicity properties have attracted their use in the field of biosensors, photocatalysis, areas of energy, and electromagnetic shielding. MXene has an excellent fast electron transportation property which is used in electrochemical-based sensor applications, and it has a good optical property which is used in fluorescence-based sensor applications. In this review, we discussed the electrochemical, calorimetric, and fluorescence-based sensor applications for the detection of some basic analytes such as hydrogen peroxide, glucose, metal ions, pesticides, and some other biomolecules. Herein, we have collectively addressed the recent developments of the MXene based electrode material for sensor applications.

ABO3 perovskite-type multifunctional BiFeO3 material is a good candidate for a variety of device applications such as photocatalyst, gas sensor, biosensor, thermoelectric material, and so on due to its remarkable magnetoelectric coupling property. The future scope of this perovskite material can be broadened by its cost-effective, highly efficient, and easily available nature. Herein, we discuss recent developments in multifunctional BiFeO3 based on two crucial applications such as sensors and photocatalyst from the recent research literature. We have also addressed the effects of doping which includes the bandgap reduction, finer pore size, and crystallite size leading to higher efficiency. Additionally, the BiFeO3 composites due to their larger surface area involve more active molecules on the surface thereby increasing the efficiency even more. Finally, some of the future scopes of the research are also addressed in this article.

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We report on the synthesis and characterizations of NiMoO4 (NMO) nanorod via the hydrothermal method. The scanning electron microscopy image is revealed the nanorod morphology of NiMoO4. The mixed phase...