Morphology and structure of sawdust waste after adding magnetic nanoparticles Heru Suryanto, Uun Yanuhar, Poppy Puspitasari, Aminnudin, Uun Yanuhar, Jibril Maulana, Nico Rahman Caesar, Joseph Selvi Binoj and Azlin Fazlina Osman E3S Web Conf., 473 (2024) 03001 Published online: 08 January 2024 DOI: 10.1051/e3sconf/202447303001