Syah, A.A., Syavika, L., Wijaya, A.R. and Kusumawati, N. 2026. Synthesis and characterization of Fe3O4/SiO2/C nanocomposites and their potential for NH4+ ion removal from shrimp farm wastewater. Eclética Química. 51, (Jul. 2026), e–1583. DOI:https://doi.org/10.26850/1678-4618.eq.v51.2026.e1583.