After 19 th century, carbon dioxide (CO 2 ) and other green house gases has increased more amount of heat which have “trapped” in the earth's atmosphere and automatically global temperature rises. It causes significant climatic changes as well as the amount and frequency of precipitation. It can also increases in extreme weather conditions such as flooding, droughts, hurricanes, and wildfires. It also effects in ecosystem changes, rising sea levels, and food insecurity. Carbon dioxide can be emitted from energy process raw materials, run computers, that have been used at factories and other facilities to run machines, heat and cool buildings, which are connected to the internet, etc. CO 2 emissions can also be directly caused by leakage in the use of petroleum production, other industrial process and chemical reactions during the manufacturing process. Indirect emissions are observed from the energy production off-site, such as the emissions created by the power plants which faci

Fuel cell technology is one of the most emerging fields with ecofriendly and everlasting energy source way of producing energy for the urgent requirements. Further it needs to be improved to make it cheap and more environmental friendly. Among all fuel cells, the hydrogen (H 2 ) and oxygen (O 2 ) fuel cell is the one with zero carbon emission, more ecofriendly, high potential and the byproduct is just only the water. However, supplying the fuels in the purest form (at least the H 2 ) is very essential to ensure higher life cycles and less decay in cell efficiency. Nowadays, commercially available large scale H 2 production is mainly dependent on steam reforming of fossil fuels which can also generates CO 2 along with H 2 and the source that is going to be depleted, and this byproduct is not environmental friendly. Therefore, an emerging alternate technology is needed; in this case the electrolysis of water has given a greater attention than the steam reforming.  Recently many sc

During the recent years, water and air pollutions are mainly caused in the fields such as industry, urban effluents, and transportation in worldwide over major cities. Serious environmental pollution, and related issues and accelerated global warming can be attributed due to the rapid consumption of fossil fuels, the increasing population, and the rapid development of the economy. Thus, the development of innovative and renewable environmental remediation materials is becoming increasingly  one. Recently, many researchers are focusing on “A noble metal/ MoS 2 nanocomposites (NCs)” which can induce local surface Plasmon resonance (LSPR) for activating the photoelectrocatalysis of hydrogen and enhancing the light emission or absorption of MoS 2 . Moreover, the LSPR can generate surface-enhanced Raman scattering (SERS), which can be used in many applications, particularly it is used in chemical sensing and biological applications. Over the last two decades, magnetic materials have emerge