Surface functionalised adsorbent for emerging pharmaceutical removal: Adsorption performance and mechanisms

By M. Turk Sekulić, N. Bošković, Aleksandar Slavkovic, Jelena Garunovic, S. Kolakovic, S. Pap. Chemical engineering research & design, 2019

159 citations recorded by the source corpus.

Abstract А highly effective adsorbent (PPhA) was designed using “acid catalyst” functionalisation and tested for six emerging PhCs (sulfamethoxazole (SMX), carbamazepine (CBZ), ketoprofen (KP), naproxen (NPX), diclofenac (DCF) and ibuprofen (IBF)) in a batch study. Characterisation results (BET, SEM, FTIR, XRD and pHzpc) showed that the functionalisation process generates a microporous material with a multitude of new functional groups (such as phosphate and phosphonate) present on the surface. Adsorption capacity reached near maximum within 10 min while equilibrium was obtained in 60 min. Findings suggest that the mass transfer was governed mainly by intraparticle diffusion processes through formation of H-bonds, π–π and n–π electron donor–acceptor interactions. A pH influence study showed that electrostatic interactions played a minor role in the overall removal mechanism. The magnitude of E was

Subfields: Industrial and Manufacturing Engineering, Materials Chemistry, Water Science and Technology

View Paper: https://www.semanticscholar.org/paper/bce32f01037efd4c7044bcc6ab0afffb2415dc86