Crystallinity and surface structure analysis of ZnO/Zein Nanocomposites as environmentally friendly materials to support SDG 12Woro Setyarsih, Mohamad Wafiq Nafii Alfan, Tukiran, Erlix Rakhmad Purnama, Prima Nerito, Shaista Saddique and Lydia RohmawatiE3S Web Conf., 696 (2026) 01013DOI: https://doi.org/10.1051/e3sconf/202669601013