The occurrence of unregulated chemical compounds also denominated as contaminants of emerging concern (CECs) in water and even in food crops irrigated with reclaimed water call for the immediate development of technologies to mitigate possible toxic effects in human health in the near future. Among the alternatives, adsorption using tailored porous materials is promising because of selectivity, capacity, low resource consumption, and ease of implementation. A composite material composed of activated carbon (Darco-KB-G) and metal organic framework (MIL-100 Fe), namely CMOF, was synthesized in order to synergistically combine hydrophobicity and specific adsorbate-surface interactions. To accomplish this, the CMOF was prepared by in situ MOF crystal growth within the meso and macro pores of the carbon. The presence of the MOF in the composite and occupancy of the pores of the carbon was verified via X-ray diffraction, porosimetry, and thermal gravimetric tests. Zeta potential was also used to determine relevant surface charge profiles. The CMOF was tested for the single and multicomponent uptake of the following CECs at ambient temperature: carbamazepine, caffeine, clofibric acid, salicylic acid, naproxen, and their metabolites including O-desmethylnaproxen, paraxanthine, and carbamazepine-10,11-epoxide. These tests were performed at near neutral pH conditions (6.5 – 7.5) and at low CEC concentrations (~ μg L<sup>-1</sup>). In general, the overall adsorption capacities were considerably improved with CMOF and selectivity toward carbamazepine was also increased.

Carbon metal–organic framework composite (CMOF) for the adsorption of contaminants of emerging concern from water

2019 Fall National Meeting

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.