1 Innovative nano catalysis techniques: transforming heterogeneous and homogeneous 1 In response to pressing environmental, energy, and sustainability challenges, nanotechnology-driven catalysis is emerging as a transformative approach. Advancements in nanomaterials, especially inorganic nanoparticles, have spurred the development of ecofriendly, efficient catalysts capable of operating in different applications like environmental remediation, energy conversion and storage, pharmaceutical, and biodiesel production. Their high surface area and unique properties such as nanomagnetism and photocatalytic activity, make them versatile for both homogeneous and heterogeneous applications, offering faster reactions and potential cost savings. Nano-catalysis is rapidly progressing as a vital scientific and industrial field, promising sustainable solutions across sectors. 1 7 Tahmineh Razipour Department of Chemistry, Naghshe Jahan University, Baharestan, Isfahan 8144167984, Islamic Republic of Iran Iran tahmineh.rp@gmail.com Noushin Ezati Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran Iran s416em@gmail.com Ebadullah Asadi Department of Chemistry, Amirkabir University of Technology, Tehran Iran ebadasadi@aut.ac.ir Mahnaz Dadkhah School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005 Australia Mahnaz.dadkhahjazi@adelaide.edu.au Nanotechnology Nanocatalysis Heterogeneous Homogeneous Sol-Gel [1] V. Polshettiwar, R.S. Varma, Green chemistry by nano-catalysis, Green Chemistry 12(5) (2010) 743-754.##[2] A. Chaudhary, A. Singh, Nano Catalysts: A Newfangled Gem in the Catalytic World, Recent Adv. Petrochemical Sci 3(5) (2017) 3-6.##[3] S.B. Somwanshi, S.B. 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