Mohammad Ehtisham Khan received doctorate degree in Chemical Engineering from Yeungnam University, the Republic of Korea in 2017 and presently working as an Assistant Professor and Head of the Department in Chemical Engineering Technology at Jazan University, Kingdom of Saudi Arabia. Dr. Khan is working in the cutting-edge area of nanosciences and nanotechnology, especially inorganic materials, such as, the fabrication of metal-metal oxides and carbon-based nanoparticles/nanocomposites various novel applications in the field of energy, environment, and biological applications such as catalysis, photocatalysis, photoelectrodes, optoelectronic devices, hydrogen production, sensing, and selected biological applications. Dr. Khan has 37 publications in international peer-reviewed journals, conference proceedings, and Editing 3 books in Elsevier with contributed in 14 book chapters.