Geomaterials Research

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The study explores the potential of zeolites as carriers for controlled trimethoprim (TMP) release. Zeolites of types X and Y were ion-exchanged with lanthanum (La3+) and cerium (Ce3+) ions and characterized to evaluate their efficacy in TMP sorption and delivery. Although type X zeolites were ineffective, type Y zeolites demonstrated significant TMP retention, with CeY adsorbing 0.95 mg (58%) and LaY adsorbing 0.78 mg (49%) of TMP per gram.

1 Introduction Silicon nitride (Si3N4) is a versatile ceramic material widely recognized for its exceptional mechanical properties, high thermal stability, and excellent resistance to wear, corrosion, and oxidation. These attributes make it a material of choice for a broad range of technical applications, including cutting tools, bearings, automotive components such as turbocharger rotors, and engine parts.