Natural catalysts for Fenton-like oxidation of Orange II

N INCHAURRONDO; A. MAESTRE; A. PINTAR; P. DJINOVIć; CINTHIA RAMOS; P. HAURE

Madrid

Simposio; 1. 3rd International Symposium on Catalysis for Clean Energy and Sustainable Chemistry; 2016

csic

The Fenton reaction has been successfully employed in the degradation of different industrial effluents at the lab scale1. However, the development of an active, selective, stable and low-cost catalyst constitutes one of the main targets towards the industrial implementation of this process. Following the green chemistry principles, recent studies have proposed the use of natural materials with minimal modification1,2. The use of such inexpensive materials will optimize the process economics, compensating, for example the high cost of the oxidant.In this context, the general objective of this study is to evaluate the Fenton-like oxidation of an azo-compound, Orange II (OII), pollutant commonly present in textile wastewater, using catalysts of natural origin: volcanic ash, black sand and a natural aluminosilicate. These materials were mainly chosen because they have iron or iron oxides in their composition.