"Nanotechnology and nanomaterials"

Carbon hybridized nanotubes for adsorption of selected non-steroidal anti-inflammatory drugs (NSAIDs) from aqueous solution

Szczepanik B.1, Rędzia N.1, Słomkiewicz P. M.1, Rogala P.1, Jedynak K.1

1)Institute of Chemistry, Jan Kochanowski University, Świętokrzyska 15G, 25-406 Kielce, Poland
E-mail: beata.szczepanik@ujk.edu.pl

Personal care products, endocrine disrupting compounds, pharmaceuticals, and their transformation products are known as the “emerging contaminants”. Pharmaceuticals have been classified as one of the most significant groups of environmental pollutant [1]. Non-steroidal anti-inflammatory drugs represent one of the widely used pharmaceuticals [2]. Several methods have been applied for treatment of NSAIDs pollutants like photocatalytic degradation, micro extraction, biofiltration, and adsorption [3].
 Adsorption of non-steroidal anti-inflammatory drug - diclofenac sodium and naproxen on halloysite-carbon nanocomposites as adsorbents were investigated in this work. Carbon hybridized halloysite were synthesized using halloysite nanotubes (1D nanomaterial) as the template and saccharose as the carbon precursor [4]. Low-temperature nitrogen adsorption isotherms, FT-IR, XRD, SEM methods are employed to study the morphological and structural changes of the halloysite/carbon nanocomposites. Kinetics of the adsorption process and adsorption models were determined for diclofenac sodium and naproxen on halloysite/carbon adsorbents. The adsorption capacity of adsorbents and removal efficiency of diclofenac sodium and naproxen from aqueous solution were calculated. Received results confirmed that obtained halloysite/carbon nanocomposites can be used as novel adsorbent materials for removing of trace organic pollutants, like non-steroidal anti-inflammatory drugs.

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