ECO-FRIENDLY PREPARATION OF SLIVER \ IRON OXIDE NANOCOMPOSITE USING HIBISCUS EXTRACT . Eureka Journal of Physical and Chemical Research, [S. l.], v. 2, n. 8, p. 1–11, 2026. Disponível em: https://eurekaoa.com/index.php/1/article/view/1375. Acesso em: 20 aug. 2026.