Sustainable Fabrication of Ca/Al-Layered Double Hydroxide (LDH)-Coated Sand from Marine Waste for Efficient Removal of Tetracycline Contamination in WaterZainab Aman Farhan and Nuralhuda Aladdin JasimEPJ Web Conf., 376 (2026) 01004DOI: https://doi.org/10.1051/epjconf/202637601004