The most encouraging prospect of energy storage gadgets is batteries and supercapacitors to overcome the need for energy. The environmental problems presently captivate a huge interest in scientific awareness. The improvement of two-dimensional (2D) profoundly effective cathode materials is the way to new research in the fields of energy transformation as well as energy storage devices. MXenes, another fascinating group of 2D transition metal carbides, nitrides and carbo-nitrides has gained impressive consideration because of their phenomenal properties like high electrical conductivity, hydrophilic nature, magnificent thermal strength, huge interlayer separation, effectively tunable construction, and high surface area. In this review, various MXenes synthesis courses utilizing distinctive materials for example hydrofluoric acid, ammonium hydrazine, lithium fluoride, and hydrochloric acid have been discussed. Additionally, different combinations of MXenes with the leading polymers are still there and should have been investigated. Potential applications of MXenes have also been discussed in the perspective of energy harvesting. MXenes have been proved as promising candidates to resolve the energy crisis because of their pre-eminent applications in batteries, supercapacitors, and cells. MXenes have also been used for carbon dioxide reduction and hydrogen production.

The most encouraging prospect of energy storage gadgets is batteries and supercapacitors to overcome the need for energy. The environmental problems presently captivate a huge interest in scientific awareness. The improvement of two-dimensional (2D) profoundly effective cathode materials is the way to new research in the fields of energy transformation as well as energy storage devices. MXenes, another fascinating group of 2D transition metal carbides, nitrides, and carbo-nitrides has gained impressive consideration because of their phenomenal properties like high electrical conductivity, hydrophilic nature, magnificent thermal strength, huge interlayer separation, effectively tunable construction, and high surface area. In this review, various MXenes synthesis courses utilizing distinctive materials for example, hydrofluoric acid, ammonium hydrazine, lithium fluoride, and hydrochloric acid have been discussed. Additionally, different combinations of MXenes with the leading poly-

Contaminated disposable masks are potential hazards to the hygiene and environment. There is increased demand, and in turn, the production of PPEs and masks has also scaled up. But due to the lack of awareness and integrated strategy for the proper disposal of these masks they might be a cause of rising health and environmental issues in the upcoming time. People lack awareness regarding the number of times each mask can be used, how to sanitize and reuse the mask, and the proper disposal of a contaminated mask. In addition, the concerned authorities lack efficient strategies to diminish the use of non-biodegradable material to minimize plastic waste, creating awareness among people to dispose of the masks properly and design efficient strategies to cope with the plastic waste. Due to which these COVID-19 masks can be a potential source of the spread of the virus and increase of plastic waste. This is a review article pertaining to details from the recent researches and articles in regards to the prevalent issues and solutions in respect of the current pandemic. The best approach is to educate the masses to reduce contaminated waste along with proper decontamination and disposal of dreg.