CATALYTIC OXIDATION OF EMERGING CONTAMINANTS IN WATER USING CU NPS SUPPORTED ON CELLULOSE REGENERATED BEADS

M. C. TALEB; F. A. MARCHESINI; A. DEVARD; E. NUDEL; G. OLMOS; L. B. GUTIERREZ

Zaragoza

Conferencia; First International Conference on Unconventional Catalysis, Reactors and Applications; 2019

Univ. de Zaragoza

Low concentrations of emerging contaminants can be found in water; they are usually bioactive and have a wide distribution and persistence in water bodies 1. The EC are associated with personal hygiene products, industrial and hospital wastes and therapeutic home consumed drugs (anti-inflammatories, analgesics, antibiotics, etc.). They can only be detected using sensitive analytical methodologies. Nowadays, ECs are removed from water by using different technologies such as Advanced Oxidation Processes (AOP) and wet catalytic oxidation (WAO). As a result, the design of catalytic formulations, which result active, selective, stable and low cost, is a hard challenge2.In this work, a novel catalyst prepared with copper nanoparticles, synthetized with a full green protocol, using ascorbic acid as a reductant is presented. These CuNPs were impregnated in a support of regenerated cellulose beads3. Several copper impregnation conditions on the cellulosic structure were studied. This catalytic structured solid result easy to separate from the aqueous media after reaction. Phenol was used as EC probe molecule. The catalytic results are very promising; due to the CuNPs supported on the cellulose beads resulted active and efficient for the phenol elimination. In fact, conversions higher than 80% with a final mineralization over the 50% were obtained.